Indiana Gratings Catalog 2013

ounded in 1971, Indiana Gratings has grown to become the premier
F fabricating distributor of industrial flooring products in the Western United States.

With facilities strategically located in Arizona, Southern California, Central/Northern
California, Oregon and Washington, Indiana Gratings offers the optimal level of service to
points ranging from Alaska to Mexico.
THE NAMES YOU KNOW C U S T O M F A B R I C AT I O N

The comprehensive line of products illustrated in this catalog are the Should your application require customized products, consult with
names you already know (or should know). Indiana Gratings Steel, Stainless our experienced technical staff. Many of the following products can be
Steel and Aluminum bar gratings; Grip Strut, Perf-O Grip, Traction Tread modified or shop fabricated to meet the most exact tolerance. Our
and Grate-Lock Safety Gratings; Fibergrate, Chemgrate and Safe-T-Span extensive fabrication department is structured with equipment and
Pultruded Fiberglass Gratings; ACO Polymer Concrete Trench Drainage personnel dedicated to exceeding your expectations. We welcome the
Systems; SuperTread Cast and Extruded Stair Nosings; Inline Aluminum challenge to produce products that complement your creativity!
Architectural Grilles; R & B Wagner and Kee Klamp Handrail Components;
Neenah Foundry Construction Castings. These quality products are T O TA L C O M M I T M E N T
well-respected leaders in their field that provide continuing value, safety Our unparalleled dedication to service makes Indiana Gratings
and durability. your clear choice for grating and related products.
Please take a moment to review the following pages and contact
PEOPLE MAKE THE DIFFERENCE us with any question you may have. Your inquiries will be warmly
Proudly serving the broad ranging needs of design professionals, the welcomed!
immediate requirements of general and sub-contractors, and the specific
needs of end users, our experienced staff will eagerly assist in every facet
of your application. We will gladly consult on the merits of our various
products to help you select the most appropriate product for your
application. Our most extensive inventory and flexible manufacturing
capacities allow us to meet the most stringent delivery demands. And our
complete fabrication/logistics department will make sure that your
shipment arrives on time and ready for installation, without the need for
further time consuming and expensive field processing.
LOGISTICS
• Complete Inventory
• Shop Layouts and
Fabrication
• Five Service Centers
• Coordinated Delivery
F A B R I C AT I O N S E R V I C E S
ENGINEERING SERVICES • Sawing • Punching
• Design Consultation • Shearing • Drilling
• Technical Manuals • Forming • Plasma Cutting
• Field Technical Representatives • Welding • Burning
• Approval Drawings
PROUDLY SERVING INDUSTRY SINCE 1976

Indiana Gratings, INC.
210 W. Douglas Street • Martinsville, IN 46151 • Phone (765) 342-7191 • Fax (765) 342-0382
Toll Free (800) 634-1988
WEBSITE E-MAIL
www.indianagratingsinc.com igi@indianagratings.com
M E TA L B A R G R AT I N G S PA G E BAR GRATINGS • Pg. 4 GRIP STRUT • Pgs. 21-23
Bar Grating Specification ................................4
Welded Steel Grating ......................................5
Swaged Aluminum Grating ............................6
Pressure Locked Grating ..................................7
Stainless Steel Grating ....................................8
Riveted Grating ................................................9
Stair Treads ......................................................10 - 11
Aluminum Plank Grating ................................12
Heavy Duty Gratings ......................................13 - 16
Bridge Decking ................................................16 PERF-O GRIP • Pgs. 27-28 GRATE LOCK • Pgs. 29-30
Embed Frames..................................................17
Trench Grating ................................................17
Trench Grating & Inlet Grates & Frames ........18
Fasteners & Banding ........................................19
Panel Widths & Layout....................................19
Manufacturing & Installation ..........................20
M E TA L S A F E T Y G R AT I N G S
Grip Strut Safety Grating ................................21 - 23
MOLDED FIBERGLASS • Pgs. 37-38 PULTRUDED FIBERGLASS • Pgs. 39-41
8 + 10 Diamond Load Tables ..........................24
Standard Grip Strut Fasteners ..........................24
Heavy Duty Grip Strut ....................................25
Roof Top Walkways..........................................26
Traction Tread Safety Grating..........................26
Perf-O Grip Safety Grating ..............................27 - 28
Grate-Lock Interlocking Safety Grating ............29 - 30
Safety Grating Stair Treads ..............................31 - 32
Safety Grating Walkway Channels ..................33
Traction Tread Flooring ..................................34 PERFORATED METALS • Pgs. 43-46 EXPANDED METALS • Pgs. 47-50
Floor Re-Surfacing Products ............................34
F I B E R G L A S S G R AT I N G S
Introduction ....................................................35 - 36
Molded Fiberglass Gratings ............................37 - 38
Pultruded Fiberglass Gratings ..........................39 - 41
Fiberglass Stair Treads ......................................42
P E R F O R AT E D & E X PA N D E D M E TA L S
Perforated Metals ............................................43 - 46 WIRE CLOTH • Pgs. 51-54 STAIR NOSING • Pgs. 55-56
Expanded Metals..............................................47 - 50
WIRE CLOTH
Woven & Welded Wire Cloth..........................51 - 54
S TA I R N O S I N G S & T R E A D S
SuperTread Stair Nosings & Treads ..................55 - 56
CONSTRUCTION PRODUCTS
Kee Structural Pipe Fittings..............................57 - 58
R & B Wagner Handrail Components ............59 - 63
© 2012 Indiana Gratings

INTRODUCTION
M etal bar grating can be defined as a series

of metal bars positioned vertically, placed
an equal distance apart and joined by cross
providing even greater open area, but
should not be specified without consulting
the manufacturer. Heavy Duty grating
M E T H O D S O F A S S E M B LY
members to form a rectangular or reticuline products are commonly manufactured with

pattern. Typically manufactured from mild bearing bar spacings ranging from 15/16" to
carbon steel, 6000 series aluminum and 300 38/16" (2-3/8") on center.
series stainless steels, bar gratings are also CROSS BARS – The bars used to secure
available in specialty metal alloys to suit nearly the position of the bearing bars are
any application. commonly designated as the cross bars.
BEARING BARS – The vertically positioned bars Cross bar profiles vary according to the
are designated as the bearing bars. These bars method of assembly and material selected.
range in size from 3/4" x 1/8" for light As with bearing bars, cross bar spacing is WELDED GRATING SWAGED PRESSURE LOCKED
Manufactured by welding Cross bars are inserted into
pedestrian traffic to 7" x 1/2" for extreme measured as on center spacing. The the cross bar/bearing bar pre-punched holes in the
vehicular loads. Typically, the spacing of the customary cross bar spacing is 4" on center. intersection, typically by bearing bars and
bearing bars is indicated in sixteenths of an On special order, 2" on center and other automated forge welding hydraulically swaged to lock
machines. Provides a secure the bars in place. Most
inch, measured from the center of one bar to the special spacings are also available.
welded connection and is effective for the manufacture
center of the adjacent bar. This center to center ideal for most industrial of aluminum, stainless, and
O.C. BEARING
or on center spacing ranges from 7/16" to applications. close mesh gratings.
BAR SPACING
19/16" (1-3/16") on standard grating
products. Standard gratings
are also available with
wider spacings
WIDTH O.C. CROSS BAR

SPACING DOVETAIL PRESSURE LOCKED RIVETED GRATING
BEARING BAR Assembled by inserting Bearing bars are
punched bearing and cross permanently riveted to
CROSS BAR bars into an "eggcrate" reticulated cross bars to
SPAN configuration and deforming form our most rigid and
the cross bars under durable products. Extremely
hydraulic pressure. Excellent well suited to absorb shock
for the manufacture of and impact loads from cart
architectural gratings. and dolley traffic.
SPECIFICATION CONSIDERATIONS
P roper specification of bar gratings includes a

determination of load conditions, effective
unsupported clear span, flooring surface, trim
could cause the top surface of the bars to become
slippery, the optional serrated surface should be
considered. When serrated surfaces are specified,
WIDTH
SPAN
and finish. Appropriate consideration of these the bearing bar depth must be increased 1/4"
elements plus any features unique to their greater than the sizes shown in the load tables
particular application will allow the specifying and selection guides to provide the equivalent
authority to select products that will provide strength of non-serrated bars.
years of continuing service. BANDING – To enhance architectural
SPAN – In grating nomenclature, span serves appearance or to provide additional transverse
a dual role in defining two significant features. stiffness, the open ends of the grating panels can UNSUPPORTED SPAN
First, unsupported span indicates the clear be banded. This is achieved by welding a flatbar,
distance between effective points of support for similar in size to the bearing bars, to the cut ends
the grating. Once the specifier has established the of the grating panel. Banding can reduce impact
design load and acceptable deflection criteria, stresses by transferring loads to adjacent bars that
grating selection will be dictated by determining are not directly subjected to service loads. Trim
the maximum unsupported span and consulting banding should always be considered when the
the load tables on the pages that follow. Secondly, grating panels are designed to be removable on
span indicates the overall finished length of the even an infrequent basis. Additionally, banding
grating panels (parallel to the bearing bars) as should always be specified when the ends of the OPTIONAL
they are supplied to the customer. bearing bars are unsupported or the grating is SERRATED SURFACE
WIDTH – The overall dimension of the grating designed to service vehicular loads. Further
panel measured perpendicular to the bearing bar banding descriptions and welding standards can
span is designated as the panel width. be found on page 17 of this catalog.
Commonly manufactured and stocked in 24" and FINISHES – Steel grating products are usually
36" nominal widths, grating panels can easily be shipped with one of three standard finishes, bare
supplied in a variety of widths to suit the needs steel, painted with one coat of the manufacturers OPTIONAL
of any application. For non-stock widths, consult red or black paint, or hot dip galvanized after END BANDING
the Panel Width Chart on page 17 of this fabrication in accordance with ASTM Standard A-
catalog. Additionally, custom widths can be shop 123. Aluminum products are commonly supplied
fabricated to hold any specific tolerance. as mill finished, but are also available with additionally be supplied with specialty custom
SERRATED SURFACE – The excellent drainage optional anodized finishes. Stainless steel products finishes such as enamel or epoxy coatings. When
and self-cleaning characteristics of plain surface as produced typically require secondary finishing considering such finishes, careful evaluation of the
grating make it suitable for the majority of such as chemical cleaning, abrasive blasting or specified material and consultation with the
applications. In the presence of materials which electro-polishing. All of our grating products can coating manufacturer is essential.
4 MARTINSVILLE, IN TEL (800) 634-1988 FAX (765) 342-0382

WELDED STEEL GRATING
W hen selecting a bar grating product, consider Welded Steel Grating first. Usually
our most economical products, they provide a comfortable walking surface
with nearly 80 percent open area. This, combined with the positive welded cross
TABLE
TA B LOF
E SPACINGS
STANDARD
O F S PA CAVAILABLE
I N G S AVA I L A B L E
4" Standard Welded Grating with bearing
bars spaced at 1-3/16" on center and
WELDED
3
1 16" cross bars at 4" on center. The
bar/bearing bar intersection, make these products our most popular. Manufactured workhorse of industrial flooring
GRATING products serving a multitude of
from ASTM A-1011 carbon steel, welded gratings are recommended for nearly all
19W4 applications.
industrial flooring applications.
2" 2" Bearing bars spaced at 1-3/16" on
To specify welded steel grating, first specify the type of grating from the adjacent center and close spaced cross bars at
OTHER BAR
table. In the instance of standard welded grating, the "W" indicates the assembly of SPACINGS
3
1 16" 2" on center. Preferred for short spans
and where small wheeled carts must
the grating shall be Welded construction, the "19" indicates that the bearing bars AVAILABLE smoothly pass over the grating.
shall be 19/16's (1-3/16) inches on center, and the "4" indicates that the cross bars 19W2
shall be spaced at 4 inches on center. Following selection of the type of grating, 4" Bearing bars spaced at 15/16" on center
consult the load table below to select the appropriate bearing bar size for the loads with cross bars at 4" on center. Provides
15 additional floor surface area and
and spans to be serviced. Proper designation for standard welded grating with 1" x 16"
increases load capacity by 26% when
3/16" bearing bars is indicated 19W4 1" x 3/16" . compared to standard spaced products.
15W4
2" 2" Bearing bars spaced at 15/16 on
19W4 center and close spaced cross bars at
15
16" 2" on center. Yields the dual
advantage of closer spaced bearing
bars and cross bars.
15W2
4" The bar spacings on types W-11-4
ADA and W-11-2 both conform with the
11
CONFORMING 16 " rigid provisions of the Americans
SPACINGS with Disabilities Act. When
specifying gratings to comply with
11W4 ADA requirements, it is critical to
2" 2" specify that the bearing bars span
"perpendicular to the normal flow of
11 traffic."
11W4 16 "
11W2
STEEL BAR GRATING LOAD TABLE

1 9 W 4 / 1 9 W 2 L O A D TA B L E
UNSUPPORTED SPAN WEIGHT PER SQ. FT. (LBS.)
BEARING BAR SIZE
2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 8'-0" 9'-0" 19-4 19-2 15-4 15-2 11-4 11-2 7-4 7-2
U 355 227 158 116 89 70
3/4 X 1/8 D .099 .155 .223 .304 .397 .503 LOADS AND DEFLECTIONS ARE THEORETICAL VALUES BASED 4.0 4.8 4.9 5.7 6.4 7.2 9.7 10.7
C 355 284 237 203 178 158
D .079 .124 .179 .243 .318 .402 ON 18,000 PSI UNIT STRESS. FOR PEDESTRIAN COMFORT
U 533 341 237 174 133 105
3/4 X 3/16 D .099 .155 .223 .304 .397 .503 DEFLECTIONS IN EXCESS OF 1/4" ARE NOT RECOMMENDED. 5.6 6.4 6.9 7.7 9.2 10.0 14.5 16.0
C 533 426 355 305 266 237
D .079 .124 .179 .243 .318 .402
U 632 404 281 206 156 125 101 84 70 U = SAFE UNIFORM LOAD, LBS. PER SQ. FT.
D .074 .116 .168 .228 .298 .377 .466 .563 .670
1 X 1/8 C 632 505 421 361 316 281 253 230 211 C = SAFE CONCENTRATED MID-SPAN LOAD, 5.1 5.9 6.2 7.1 8.2 9.0 12.9 14.2
D .060 .093 .134 .182 .238 .302 .372 .451 .536
U 947 606 421 309 237 187 152 125 105 LBS. PER FT. OF GRATING WIDTH
1 X 3/16 D .074 .116 .168 .228 .298 .377 .466 .563 .670 D = DEFLECTION IN INCHES 7.4 8.4 9.2 10.2 12.1 13.1 19.4 21.3
C 947 758 632 541 474 421 379 344 316
D .060 .093 .134 .182 .238 .302 .372 .451 .536
U 987 632 439 322 247 195 158 130 110 93 81
1-1/4 X 1/8 D .060 .093 .134 .182 .238 .302 .372 .451 .536 .629 .730 6.4 7.4 7.8 8.8 10.3 11.3 15.8 17.1
C 987 789 658 564 493 439 395 359 329 304 282
D .048 .074 .107 .146 .191 .241 .298 .360 .429 .504 .584
U 1480 947 658 483 370 292 237 196 164 140 121
1-1/4 X 3/16 D .060 .093 .134 .182 .238 .302 .372 .451 .536 .629 .730 9.0 10.0 11.2 12.2 14.9 15.9 23.8 25.7
C 1480 1184 987 846 740 658 592 538 493 455 423
D .048 .074 .107 .146 .191 .241 .298 .360 .429 .504 .584
U 1421 909 632 464 355 281 227 188 158 135 116 89 70
1-1/2 X 1/8 D .050 .078 .112 .152 .199 .251 .310 .376 .447 .524 .608 .794 1.006 7.4 8.4 9.2 10.2 12.1 13.1 18.8 20.0
C 1421 1137 947 812 711 632 568 517 474 437 406 355 316
D .040 .062 .089 .122 .159 .201 .248 .300 .358 .420 .487 .636 .804
U 2132 1364 947 696 533 421 341 282 237 202 174 133 105
D .050 .078 .112 .152 .199 .251 .310 .376 .447 .524 .608 .794 1.006 11.1 12.5 13.7 15.1 18.1 19.6 28.1 30.1
1-1/2 X 3/16 C 2132 1705 1421 1218 1066 947 853 775 711 656 609 533 474
D .040 .062 .089 .122 .159 .201 .248 .300 .358 .420 .487 .636 .804
U 2901 1857 1289 947 725 573 464 384 322 275 237 181 143
D .043 .067 .096 .130 .170 .215 .266 .322 .383 .450 .521 .681 .862 12.7 14.1 15.7 17.1 20.9 22.3 32.5 34.4
1-3/4 X 3/16 C 2901 2321 1934 1658 1451 1289 1161 1055 967 893 829 725 645
D .034 .053 .077 .104 .136 .172 .213 .257 .306 .360 .417 .545 .689
U 3789 2425 1684 1237 947 749 606 501 421 359 309 237 187
2 X 3/16 D .037 .058 .084 .114 .149 .189 .233 .282 .335 .393 .456 .596 .754 14.3 15.7 17.8 19.2 23.7 25.1 36.9 38.8
C 3789 3032 2526 2165 1895 1684 1516 1378 1263 1166 1083 947 842
D .030 .047 .067 .091 .119 .151 .186 .225 .268 .315 .365 .477 .603
U 4796 3069 2132 1566 1199 947 767 634 533 454 392 300 237
2-1/4 X 3/16 D .033 .052 .074 .101 .132 .168 .207 .250 .298 .350 .406 .530 .670 15.9 17.4 19.8 21.2 26.5 27.9 41.3 43.2
C 4796 3837 3197 2741 2398 2132 1918 1744 1599 1476 1370 1199 1066
D .026 .041 .060 .081 .106 .134 .166 .200 .238 .280 .324 .424 .536
U 5921 3789 2632 1933 1480 1170 947 783 658 561 483 370 292
2-1/2 X 3/16 D .030 .047 .067 .091 .119 .151 .186 .225 .268 .315 .365 .477 .603
C 5921 4737 3947 3383 2961 2632 2368 2153 1974 1822 1692 1480 1316 17.5 19.0 21.8 23.3 29.2 30.7 45.6 47.5
D .024 .037 .054 .073 .095 .121 .149 .180 .215 .252 .292 .381 .483
NOTE: WHEN GRATINGS WITH SERRATED BEARING BARS ARE SELECTED, THE DEPTH OF GRATING REQUIRED TO SERVICE A SPECIFIED LOAD WILL BE 1/4" GREATER THAN THAT SHOWN IN THE TABLES ABOVE.
C O N V E R S I O N TA B L E
The loads shown above are for type 19-4 and 19-2 gratings. To determine the load carrying capacity for alternative bar spacings, multiply the loads given by the following conversion factors (DEFLECTION REMAINS CONSTANT):
FOR TYPES 15-4 AND 15-2: 1.26 FOR TYPES 11-4 AND 11W2: 1.72 FOR TYPES 7-4 AND 7-2: 2.71
S E L E C T I O N G U I D E : 1 9 - 4 P L A I N S U R F A C E G R AT I N G
For deflection of not more than 1/4" when subjected to the severest of the following: (1) the uniform loads below; (2) under concentrated mid-span loads of 300 lbs. up to 6'-0" span; or (3) 400 lbs. for spans 6'-0" and over.
SAFE UNIFORM LOAD
LBS./SQ. FT. 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 8'-0" 9'-0"
50 1 x 1/8 1 x 1/8 1 x 1/8 1 x 1/8 1 x 3/16 1-1/4 x 1/8 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 1-3/4 x 3/16 2 x 3/16 2-1/4 x 3/16
75 1 x 1/8 1 x 1/8 1 x 1/8 1 x 1/8 1 x 3/16 1-1/4 x 1/8 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 1-3/4 x 3/16 2 x 3/16 2-1/4 x 3/16
100 1 x 1/8 1 x 1/8 1 x 1/8 1 x 1/8 1 x 3/16 1-1/4 x 1/8 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 1-3/4 x 3/16 2-1/4 x 3/16 2-1/2 x 3/16
125 1 x 1/8 1 x 1/8 1 x 1/8 1 x 1/8 1-1/4 x 1/8 1-1/4 x 3/16 1-1/2 x 1/8 1-1/2 x 3/16 1-3/4 x 3/16 2 x 3/16 2-1/4 x 3/16 –
150 1 x 1/8 1 x 1/8 1 x 1/8 1 x 3/16 1-1/4 x 1/8 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 1-3/4 x 3/16 2 x 3/16 2-1/2 x 3/16 –
200 1 x 1/8 1 x 1/8 1 x 1/8 1-1/4 x 1/8 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 1-3/4 x 3/16 2 x 3/16 2-1/4 x 3/16 – –
300 1 x 1/8 1 x 3/16 1 x 3/16 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 2 x 3/16 2 x 3/16 2-1/4 x 3/16 2-1/2 x 3/16 – –
www.indianagratingsinc.com
5
SWAGED ALUMINUM GRATING
A luminum grating products are light in weight, resistant to atmospheric corrosion, non-
sparking and offer an attractive appearance. These characteristics make aluminum grating
especially suitable for water and sewage treatment facilities, marine environments, food
processing and petro-chemical installations. Manufactured from 6061 and 6063 alloys, the most TABLE
TA B LOF
E OSPACINGS
F S PA CAVAILABLE
popular and economical method of assembly for aluminum gratings is pressure locking by the STANDARD TYPE 19-4 4" ADA TYPE 11-4 4"
swa ging process. This versatile manufacturing system allows us to offer three distinct profiles: ALUMINUM CONFORMING
11
Standard Rectangular Bar, Flush-Top Rectangular Bar and I-bar. Each profile is illustrated below. GRATING 13 16" SPACINGS 16 "
To specify Indiana Gratings Swaged Aluminum Grating, the type of grating is indicated by
designating one of the three profiles shown combined with the bearing bar/cross bar spacings
illustrated in the table. Following selection of the type of grating, consult the load table below to
Bearing Bars at 1-3/16" O.C. Bearing Bars at 11/16" O.C.
select the appropriate bearing bar size for the loads and spans to be served. Cross Bars at 4" O.C. Cross Bars at 4" O.C.
EXAMPLES: 19SG4 FOR RECTANGULAR BAR GRATINGS

OTHER BAR TYPE 19-2 2" 2" TYPE 11-2 2" 2"
19SGF4 FOR FLUSH TOP GRATINGS
19SGI$ FOR I-BAR GRATINGS SPACINGS
11
AVAILABLE 3
1 16" 16 "

Cross Bars at 2" O.C. Cross Bars at 2" O.C.
TYPE 15-4 TYPE 7-4

4" 4"
7
15
16 " 16 "
Bearing Bars at 15/16" O.C. Bearing Bars at 7/16" O.C.

I-BAR PROFILE "SGI" RECTANGULAR BAR PROFILE "SG" FLUSH TOP PROFILE"SGF"
TYPE 15-2 TYPE 7-2
2" 2" 2" 2"
Lighter, extruded I-beams with a Rectangular bearing bars Similar to Profile "A" except the
standard skid resistant, fluted available with plain or serrated special extruded cross bar is 15
7
16"
surface have essentially the same surface are swaged with the swaged flush with the top 16"
load carrying capacity as cross bar below the walking surface of the bearing bars
rectangular bar products of equal surface and fully secured within providing a more comfortable
depth. the bearing bar. walking surface. Bearing Bars at 15/16" O.C. Bearing Bars at 7/16" O.C.
ALUMINUM GRATING LOAD TABLE

1 9 - 4 / 1 9 - 2 L O A D TA B L E
BEARING BAR SIZE
2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 8'-0" 9'-0" 19-4 19-2 15-4 15-2 11-4 11-2 7-4 7-2
U 421 269 187 137 105 83
1 X 1/8 D .144 .225 .324 .441 .576 .729 LOADS AND DEFLECTIONS ARE THEORETICAL VALUES BASED ON 1.8 2.2 2.2 2.6 2.9 3.3 4.4 4.7
C 421 337 281 241 211 187
D .115 .180 .259 .353 .461 .583 12,000 PSI UNIT STRESS. FOR PEDESTRIAN COMFORT DEFLECTIONS
1 X 3/16 U 632 404 281 206 158 125 IN EXCESS OF 1/4" ARE
D .144 .225 .324 .441 .576 .729 U = SAFE UNIFORM LOAD, LBS. PER SQ. FT. 2.6 2.9 3.2 3.5 4.2 4.5 6.4 6.7
OR 1" I-BAR C 632 505 421 361 316 281 NOT RECOMMENDED.
D .115 .180 .259 .353 .461 .583 C = SAFE CONCENTRATED MID-SPAN LOAD,
1-1/4 X 1/8 D .115 .180 .259 .353 .461 .583 .720 .871 1.037 2.2 2.5 2.7 3.0 3.6 3.9 5.4 5.7
C 658 526 439 376 329 292 263 239 219 D = DEFLECTION IN INCHES
D .092 .144 .207 .282 .369 .467 .576 .697 .829
1-1/4 X 3/16 U 987 632 439 322 247 195 158 130 110 93 81
D .115 .180 .259 .353 .461 .583 .720 .871 1.037 1.217 1.411 3.1 3.5 3.9 4.2 5.2 5.5 7.9 8.3
OR 1-1/4" I-BAR C 987 789 658 564 493 439 395 359 329 304 282
D .092 .144 .207 .282 .369 .467 .576 .697 .829 .973 1.129
U 947 606 421 309 237 187 152 125 105 90 77 67 59
1-1/2 X 1/8 D .096 .150 .216 .294 .384 .486 .600 .726 .864 1.014 1.176 1.350 1.536 2.6 2.9 3.2 3.5 4.2 4.5 6.4 6.7
C 947 758 632 541 474 421 379 344 316 291 271 253 237
D .077 .120 .173 .235 .307 .389 .480 .581 .691 .811 .941 1.080 1.229
1-1/2 X 3/16 U 1421 909 632 464 355 281 227 188 158 135 116 101 89
D .096 .150 .216 .294 .384 .486 .600 .726 .864 1.014 1.176 1.350 1.536 3.7 4.0 4.6 4.9 6.1 6.5 9.4 9.8
OR 1-1/2" I-BAR C 1421 1137 947 812 711 632 568 517 474 437 406 379 355
D .077 .120 .173 .235 .307 .389 .480 .581 .691 .811 .941 1.080 1.229
1-3/4 X 3/16 U 1934 1238 860 632 484 382 309 256 215 183 158 138 121
D .082 .129 .185 .252 .329 .417 .514 .622 .741 .869 1.008 1.157 1.317 4.2 4.6 5.3 5.6 7.1 7.4 10.9 11.3
OR 1-3/4" I-BAR C 1934 1547 1289 1105 967 860 774 703 645 595 553 516 484
D .066 .103 .148 .202 .263 .333 .411 .498 .592 .695 .806 .926 1.053
2 X 3/16 U 2526 1617 1123 825 632 499 404 334 281 239 206 180 158
D .072 .113 .162 .221 .288 .365 .450 .545 .648 .761 .882 1.013 1.152 4.8 5.1 6.0 6.3 8.0 8.4 12.4 12.8
OR 2" I-BAR C 2526 2021 1684 1444 1263 1123 1011 919 842 777 722 674 632
D .058 .090 .130 .176 .230 .292 .360 .436 .518 .608 .706 .810 .922
2-1/4 X 3/16 U 3197 2046 1421 1044 799 632 512 423 355 303 261 227 200
D .064 .100 .144 .196 .256 .324 .400 .484 .576 .676 .784 .900 1.024 5.4 5.7 6.7 7.0 9.0 9.3 14.0 14.3
OR 2-1/4" I-BAR C 3197 2558 2132 1827 1599 1421 1279 1163 1066 984 914 853 799
D .051 .080 .115 .157 .205 .259 .320 .387 .461 .541 .627 .720 .819
2-1/2 X 3/16 U 3947 2526 1754 1289 987 780 632 522 439 374 322 281 247
D .058 .090 .130 .176 .230 .292 .360 .436 .518 .608 .706 .810 .922 5.9 6.3 7.4 7.7 10.0 10.3 15.5 15.8
OR 2-1/2" I-BAR C 3947 3158 2632 2256 1974 1754 1579 1435 1316 1215 1128 1053 987
D .046 .072 .104 .141 .184 .233 .288 .348 .415 .487 .564 .648 .737
FOR TYPES 15-4 AND 15-2: 1.26 FOR TYPES 11-4 AND 11-2: 1.72 FOR TYPES 7-4 AND 7-2: 2.71
SAFE UNIFORM LOAD
LBS./SQ. FT. 2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0"
50 1 x 1/8 1 x 1/8 1 x 3/16 1 x 3/16 1 x 3/16 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 2 x 3/16 2-1/4 x 3/16 2-1/2 x 3/16
75 1 x 1/8 1 x 1/8 1 x 3/16 1 x 3/16 1-1/4 x 3/16 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 2 x 3/16 2-1/4 x 3/16 2-1/2 x 3/16
100 1 x 1/8 1 x 1/8 1 x 3/16 1 x 3/16 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 1-3/4 x 3/16 2 x 3/16 2-1/4 x 3/16 2-1/2 x 3/16
125 1 x 1/8 1 x 1/8 1 x 3/16 1-1/4 x 3/16 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 2 x 3/16 2-1/4 x 3/16 2-1/2 x 3/16 –
150 1 x 1/8 1 x 1/8 1 x 3/16 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 1-3/4 x 3/16 2 x 3/16 2-1/4 x 3/16 2-1/2 x 3/16 –
200 1 x 1/8 1 x 1/8 1 x 3/16 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 2 x 3/16 2-1/4 x 3/16 2-1/2 x 3/16 – –
300 1 x 1/8 1 x 3/16 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 2 x 3/16 2-1/4 x 3/16 2-1/2 x 3/16 – – –

a
I ndiana Gratings offers two distinct types of
Pressure Locked Gratings which are identified
by their method of assembly. Manufactured
without the introduction of heat or riveting,
these gratings provide a finished product with
attractive architectural lines. This pleasing
appearance makes Pressure Locked Gratings ideal
S W A G E D P R E S S U R E L O C K E D G R AT I N G S
D O V E TA I L P R E S S U R E L O C K E D G R AT I N G S
TABLE
TA B LOF
GRATING
E SPACINGS
STANDARD
MESH
OTHER BAR
SPACINGS
O F S PA CAVAILABLE
TYPE 19-4
13 16"
4"
Bearing Bars at 1-3/16" O.C.

Cross Bars at 4" O.C.
TYPE 19-2 2" 2"

ADA
CONFORMING
SPACINGS
TYPE 11-4
11
16
a
PRESSURE LOCKED GRATING
candidates for architectural and ornamental
applications such as grilles, screens and fences.
Additionally, pressure locked methods of
manufacturing allow for the production of close
mesh gratings with minimal open area. Pressure
Locked Gratings with bearing bars spaced at
11/16" and 7/16" on center conform with the
Pressure Locked Gratings manufactured by swaging are designated by the

profile "SG." These products are assembled by inserting hollow tube cross bars
aa
into pre-punched holes in the bearing bars and then swaging the cross bars
(similar to the aluminum gratings found on page 4). This permanently locks the
entire cross bar/bearing bar intersection within the interior of the bearing bar.
Pressure Locked Gratings manufactured with deep rectangular cross bars are
identified as dovetail pressure locked and are designated by the profile "DT."
These products are assembled by pre-punching both the bearing bars and cross
bars, aligning the bars in an egg-crate manner, and deforming the cross bar into
the dovetail slot in the bearing bar under intense hydraulic pressure.
M AT E R I A L S
ISOMETRIC
SWAGED INTERSECTION
ISOMETRIC
DOVETAIL INTERSECTION
rigid spacing requirements of the Americans
with Disabilities Act (ADA). These products are
commonly installed at the entrance to public
buildings where concerns of pedestrian traffic
and high heeled shoes coincide with needs for
ventilation and drainage.
Commonly produced in ASTM A-1011 mild carbon steel, 6000 series aluminum and 300 series stainless
steels, Pressure Locked Gratings can also be manufactured in select specialty alloys. For assistance in selecting
appropriate specialty alloys, please contact our sales department.
F A B R I C AT I O N
"
All Indiana Gratings Pressure Locked Gratings are fabricated to size on a "per order" basis. To enhance
longevity, all products are manufactured with each outside cross bar/bearing bar intersection fillet welded in
accordance with NAAMM standards. Banding provides additional transverse stiffness and it is highly
recommended that all Pressure Locked Gratings be specified with all cutouts and open ends banded (see
banding definition on page 3).
Bearing Bars at 11/16" O.C.

TYPE 11-2 2"

4"
2"
C U S T O M B E A R I N G B A R S PA C I N G S
The Dovetail Pressure Locked method of manufacturing is particularly
flexible in that it allows for the production of gratings with custom bearing bar
spacings. Small quantities can easily be manufactured to suit the precise needs
of most applications. To specify non-standard spacings, simply insert the desired
bearing bar center to center spacing (in sixteenths of one inch) in lieu of the
standard spacings shown in the table above (note that 4" and 2" cross bars
centers should be maintained).
EXAMPLE: 8WH-4 FOR GRATING WITH BEARING BARS AT 1/2" ON CENTER
CLOSE MESH
TYPE 7SG-4
STANDARD MESH
TYPE 19DT-4
AVAILABLE 13 16"
11
16 " B E A R I N G B A R S E L E C T I O N & L O A D TA B L E S
The bearing bar sizes offered for pressure locked gratings are common to
those in welded steel, swaged aluminum and stainless steel gratings. In that the
Bearing Bars at 1-3/16" O.C. Bearing Bars at 11/16" O.C. sizes and spacings of the bearing bars are consistent with these products, the
Cross Bars at 2" O.C. Cross Bars at 2" O.C. load tables are similarly interchangeable. Load tables for pressure locked gratings
can be found on the following pages:
FOR PRESSURE LOCKED STEEL GRATING – SEE PAGE 4
TYPE 15-4 TYPE 7-4 FOR PRESSURE LOCKED ALUMINUM GRATING – SEE PAGE 5
4" 4"
7 FOR PRESSURE LOCKED STAINLESS GRATING – SEE PAGE 7
15 16 "
16 "
H O W T O S P E C I F Y P R E S S U R E L O C K E D G R AT I N G
Proper specification of Pressure Locked Grating includes three components; profile, bar spacings
Bearing Bars at 15/16" O.C. Bearing Bars at 7/16" O.C.
and bearing bar size. Profile options are "PS" for swaged construction or "PD" for dovetail
construction. Options for bar spacings are listed or can be custom specified. The desired bearing bar
sizes shall be determined by consulting the appropriate load table. For clarity, the type of material
(steel, aluminum or stainless) and finish should be specified.
TYPE 15-2 TYPE 7-2 EXAMPLE: 19SGH 1" X 3/16" GALVANIZED STEEL
2" 2" 2" 2"
15
7
"
16 SAMPLE SPECIFICATION:
"
16
Pressure Locked Grating shall be as manufactured by Indiana Gratings, Inc., 212 W.
SWAGED
Douglas St. Martinsville, IN 46151, (800) 321-4314. Grating shall be_______________
7SG4
construction, type _________________ 1" X 3/16"
with _______________ bearing bars spaced at________
7/16
Bearing Bars at 15/16" O.C. Bearing Bars at 7/16" O.C. inches on center and ________________________cross
SWAGED bars spaced at _________
4 inches on
Cross Bars at 2" O.C. Cross Bars at 2" O.C. center. Material shall be __________________________with
A-1011 STEEL GALVANIZED
a _________________________
finish. All cutouts and open ends shall be banded in accordance with NAAMM standards.
7
STAINLESS STEEL GRATING
W hen considering grating for food processing applications, shipboard use, or highly
corrosive environments, Indiana Gratings Stainless Steel Grating is often the most cost
effective product. Commonly manufactured in 300 series alloys, stainless steel gratings are TABLE
TA B L EOFOSPACINGS
F S PA C AVAILABLE
assembled by welding or pressure locking to suit the specific needs of each application.
To specify Indiana Gratings Stainless Steel Grating, the type of grating is indicated by STANDARD TYPE 19-4 4" ADA TYPE 11-4 4"
designating one of the three profiles shown combined with the bearing bar/cross bar spacing MESH CONFORMING
11
GRATING 13 16" SPACINGS 16 "
illustrated in the table. Following selection of the type of grating, consult the load table below to
select the appropriate bearing bar size for the loads and spans to be served.
EXAMPLES: 19W4 FOR WELDED BAR GRATINGS
19SG4 FOR SWAGED PRESSURE LOCKED GRATINGS Bearing Bars at 1-3/16" O.C. Bearing Bars at 11/16" O.C.
19DT4 FOR DOVETAIL PRESSURE LOCKED GRATINGS
OTHER BAR TYPE 19-2 2" 2" TYPE 11-2 2" 2"
SPACINGS
11
AVAILABLE 3
1 " 16 16 "

WELDED GRATING PROFILE "W" SWAGED GRATING PROFILE "SG" DOVETAIL GRATING PROFILE "DT" TYPE 15-4 TYPE 7-4
4" 4"
Economic welded grating with forged Hollow tube cross bars are swaged into Deep rectangular cross bars provide
7
bearing bar/cross bar intersection. round holes in bearing bars to excellent lateral stability. Cross bars 15
16 " 16 "
Available with bearing bars spaced at 1- permanently lock each intersection. are flush with top surface of bearing
3/16" and 15/16" on center. Intersections Minimizes distortion from welding or bars to provide comfortable walking
subject to carbon precipitation caused punching top surfaces of the bearing surface. Popular for ornamental and Bearing Bars at 15/16" O.C. Bearing Bars at 7/16" O.C.
by welding. bars. Available in any quantity. architectural applications. Cross Bars at 4" O.C. Cross Bars at 4" O.C.
FINISHING TYPE 15-2

2" 2"
TYPE 7-2
2" 2"
As produced, stainless steel products typically display discoloration due to cutting and
welding. If appearance is a factor, consideration should be given to secondary cleaning such as 15
7
"
16
"
16
abrasive blasting or electro-polishing.
STAINLESS STEEL GRATING Bearing Bars at 15/16" O.C.

Bearing Bars at 7/16" O.C.
LOAD TABLE
1 9 - 4 / 1 9 - 2 L O A D TA B L E
BEARING BAR SIZE
2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 8'-0" 9'-0" 19-4 19-2 15-4 15-2 11-4 11-2 7-4 7-2
U 395 253 175 129 99 78
3/4 X 1/8 D .114 .179 .257 .350 .457 .579 LOADS AND DEFLECTIONS ARE THEORETICAL VALUES BASED 4.0 4.8 4.9 5.7 6.4 7.2 9.7 10.7
C 395 316 263 226 197 175
D .091 .143 .206 .280 .366 .463 ON 20,000 PSI UNIT STRESS. FOR PEDESTRIAN COMFORT
U 592 379 263 193 148 117
3/4 X 3/16 D .114 .179 .257 .350 .457 .579 DEFLECTIONS IN EXCESS OF 1/4" ARE NOT RECOMMENDED. 5.6 6.4 6.9 7.7 9.2 10.0 14.5 16.0
C 592 474 395 338 296 263
D .091 .143 .206 .280 .366 .463
U 702 449 312 229 175 139 112 93 78 U = SAFE UNIFORM LOAD, LBS. PER SQ. FT.
D .086 .134 .193 .263 .343 .434 .536 .648 .771
1 X 1/8 C 702 561 468 401 351 312 281 255 234 C = SAFE CONCENTRATED MID-SPAN LOAD, 5.1 5.9 6.2 7.1 8.2 9.0 12.9 14.2
D .069 .107 .154 .210 .274 .347 .429 .519 .617
1 X 3/16 D .086 .134 .193 .263 .343 .434 .536 .648 .771 D = DEFLECTION IN INCHES 7.4 8.4 9.2 10.2 12.1 13.1 19.4 21.3
C 1053 842 702 602 526 468 421 383 351
D .069 .107 .154 .210 .274 .347 .429 .519 .617
U 1096 702 487 358 274 217 175 145 122 104 90
1-1/4 X 1/8 D .069 .107 .154 .210 .274 .347 .429 .519 .617 .724 .840 6.4 7.4 7.8 8.8 10.3 11.3 15.8 17.1
C 1096 877 731 627 548 487 439 399 365 337 313
D .055 .086 .123 .168 .219 .278 .343 .415 .494 .579 .672
U 1645 1053 731 537 411 325 263 217 183 156 134
1-1/4 X 3/16 D .069 .107 .154 .210 .274 .347 .429 .519 .617 .724 .840 9.0 10.0 11.2 12.2 14.9 15.9 23.8 25.7
C 1645 1316 1096 940 822 731 658 598 548 506 470
D .055 .086 .123 .168 .219 .278 .343 .415 .494 .579 .672
U 1579 1011 702 516 395 312 253 209 175 149 129 99 78
1-1/2 X 1/8 D .057 .089 .129 .175 .229 .289 .357 .432 .514 .604 .700 .914 1.157 7.4 8.4 9.2 10.2 12.1 13.1 18.8 20.0
C 1579 1263 1053 902 789 702 632 574 526 486 451 395 351
D .046 .071 .103 .140 .183 .231 .286 .346 .411 .483 .560 .731 .926
U 2368 1516 1053 773 592 468 379 313 263 224 193 148 117
D .057 .089 .129 .175 .229 .289 .357 .432 .514 .604 .700 .914 1.157 11.1 12.5 13.7 15.1 18.1 19.6 28.1 30.1
1-1/2 X 3/16 C 2368 1895 1579 1353 1184 1053 947 861 789 729 677 592 526
D .046 .071 .103 .140 .183 .231 .286 .346 .411 .483 .560 .731 .926
U 3224 2063 1433 1053 806 637 516 426 358 305 263 201 159
D .049 .077 .110 .150 .196 .248 .306 .370 .441 .517 .600 .784 .992 12.7 14.1 15.7 17.1 20.9 22.3 32.5 34.4
1-3/4 X 3/16 C 3224 2579 2149 1842 1612 1433 1289 1172 1075 992 921 806 716
D .039 .061 .088 .120 .157 .198 .245 .296 .353 .414 .480 .627 .793
U 4211 2695 1871 1375 1053 832 674 557 468 399 344 263 208
2 X 3/16 D .043 .067 .096 .131 .171 .217 .268 .324 .386 .453 .525 .686 .868 14.3 15.7 17.8 19.2 23.7 25.1 36.9 38.8
C 4211 3368 2807 2406 2105 1871 1684 1531 1404 1296 1203 1053 936
D .034 .054 .077 .105 .137 .174 .214 .259 .309 .362 .420 .549 .694
U 5329 3411 2368 1740 1332 1053 853 705 592 505 435 333 263
2-1/4 X 3/16 D .038 .060 .086 .117 .152 .193 .238 .288 .343 .402 .467 .610 .771 15.9 17.4 19.8 21.2 26.5 27.9 41.3 43.2
C 5329 4263 3553 3045 2664 2368 2132 1938 1776 1640 1523 1332 1184
D .030 .048 .069 .093 .122 .154 .190 .230 .274 .322 .373 .488 .617
U 6579 4211 2924 2148 1645 1300 1053 870 731 623 537 411 325
2-1/2 X 3/16 D .034 .054 .077 .105 .137 .174 .214 .259 .309 .362 .420 .549 .694 17.5 19.0 21.8 23.3 29.2 30.7 45.6 47.5
C 6579 5263 4386 3759 3289 2924 2632 2392 2193 2024 1880 1645 1462
D .027 .043 .062 .084 .110 .139 .171 .207 .247 .290 .336 .439 .555
FOR TYPES 15-4 AND 15-2: 1.26 FOR TYPES 11-4 AND 11-2: 1.72 FOR TYPES 7-4 AND 7-2: 2.71
SAFE UNIFORM LOAD
LBS./SQ. FT. 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 8'-0" 9'-0"
50 1 x 1/8 1 x 1/8 1 x 1/8 1 x 1/8 1 x 3/16 1-1/4 x 1/8 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 1-3/4 x 3/16 2 x 3/16 2-1/4 x 3/16
75 1 x 1/8 1 x 1/8 1 x 1/8 1 x 1/8 1 x 3/16 1-1/4 x 1/8 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 1-3/4 x 3/16 2 x 3/16 2-1/4 x 3/16
100 1 x 1/8 1 x 1/8 1 x 1/8 1 x 1/8 1 x 3/16 1-1/4 x 1/8 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 1-3/4 x 3/16 2-1/4 x 3/16 2-1/2 x 3/16
125 1 x 1/8 1 x 1/8 1 x 1/8 1 x 1/8 1-1/4 x 1/8 1-1/4 x 3/16 1-1/2 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 2 x 3/16 2-1/4 x 3/16 –
150 1 x 1/8 1 x 1/8 1 x 1/8 1 x 3/16 1-1/4 x 1/8 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 2 x 3/16 2 x 3/16 2-1/2 x 3/16 –
200 1 x 1/8 1 x 1/8 1 x 1/8 1-1/4 x 1/8 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 1-3/4 x 3/16 2 x 3/16 2-1/4 x 3/16 – –
300 1 x 1/8 1 x 1/8 1 x 3/16 1-1/4 x 3/16 1-1/2 x 3/16 1-3/4 x 3/16 2 x 3/16 2 x 3/16 2-1/4 x 3/16 2-1/2 x 3/16 – –

RIVETED GRATING
R iveted gratings, which provided the foundation for the manufacture of commercial grating
products, continue to serve many of industrys' most demanding applications.
Manufactured by riveting crimped flatbar cross members to rectangular bearing
bars in a recticuline pattern, these products offer superior resistance to RIVETED
R I V E T EGRATING
D G R AT I N G
impact, fatigue and repetitive loads. The truss style reticulated
7"
cross bars offer excellent strength and durability when
subjected to the concentrated stresses of rolling loads
imposed by cart and dolley traffic. 11 8 "
18R 18R7
M AT E R I A L S A N D S P E C I F I C AT I O N S
Riveted gratings are produced in carbon steel, 6000 series
31 2 "
aluminum and 300 series stainless steels. To specify Riveted
Grating, first specify the type of grating from the table. In the instance of Standard Riveted Grating, The "18"
indicates the method of assembly shall be riveted construction, the "18" indicates that the bearing bars shall 11 8 "
be spaced 18/16's (1-1/8) inches apart, and the "7" indicates that the rivets shall be spaced at 7" on center.
Following selection of the type of grating, consult the load tables to select the appropriate bearing bar size for 18R3.5
the loads and spans to be served. To complete the specification, indicate which of the three materials is
desired for the application, carbon steel, aluminum or stainless steel.
7"
SAMPLE SPECIFICATIONS: 18R7 1" X 3/16" CARBON STEEL
12R3.5 1-1/2" X 3/16" 6063 ALUMINUM 3
18R7 2" X 3/16" 304 STAINLESS STEEL
4 "
S E R R AT E D S U R F A C E 12R7
When the walking surface of bar gratings are subject to the accumulation of moisture or other slippery
substances, the optional serrated surface should be considered. Unlike rectangular mesh gratings where the 31 2 "
bearing bars are typically constructed with the serrated surface, the standard method of manufacture for
riveted gratings is to serrate the crimped cross member. When the grating is assembled, these crimp bars are 3
4 "
allowed to project slightly above the top surface of the bearing bars to provide a superior unidirectional skid
resistant surface. Environments particularly prone to unsafe walking conditions can be further specified as 12R3.5
100% serrated where both the bearing bars and the crimp bars are provided with serrations.
RIVETED GRATING LOAD TABLE

R - 1 8 - 7 / R - 1 8 - 3 . 5 L O A D TA B L E
BEARING BAR SIZE
2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 8'-0" STEEL 18-7 STEEL 12-7 ALUM 18-7 ALUM 12-7
U 788 504 350 257 197 156 126 LOADS AND DEFLECTIONS ARE THEORETICAL VALUES BASED
1 X 1/8 D .072 .112 .162 .220 .289 .365 .451 ON 18,000 PSI STEEL OR 12,000 PSI ALUMINUM UNIT STRESS. 7.6 10.6 2.7 3.9
C 788 631 526 450 394 350 315
D .058 .090 .130 .176 .230 .292 .360 FOR PEDESTRIAN COMFORT, DEFLECTIONS IN EXCESS OF
U 1184 757 526 386 295 233 189 156 1/4" ARE NOT RECOMMENDED.
1 X 3/16 D .072 .112 .162 .220 .289 .365 .451 .545 9.4 12.8 3.3 4.5
C 1184 947 788 676 592 526 473 430 U = SAFE UNIFORM LOAD, LBS. PER SQ. FT.
D .058 .090 .130 .176 .230 .292 .360 .436
C = SAFE CONCENTRATED MID-SPAN LOAD, LBS.
U 1232 788 548 402 308 243 197 163 PER FT. OF GRATING WIDTH
1-1/4 X 1/8 D .058 .090 .130 .176 .230 .292 .360 .435 8.7 12.1 3.1 4.4
C 1232 986 822 704 616 548 493 448 D = DEFLECTION IN INCHES
D .046 .072 .104 .141 .184 .233 .288 .348
U 1851 1185 823 604 463 365 296 244 205 174 150
1-1/4 X 3/16 D .058 .090 .130 .176 .230 .292 .360 .435 .516 .607 .704 11.0 15.0 3.8 5.3
C 1851 1481 1235 1058 925 823 740 673 617 570 466
D .046 .072 .104 .141 .184 .233 .288 .348 .415 .486 .562
U 1775 1136 788 579 443 350 284 234 197 167 144
1-1/2 X 1/8 D .048 .075 .108 .147 .192 .243 .300 .363 .432 .506 .587 9.9 13.6 3.4 5.0
C 1775 1421 1184 1014 887 788 710 646 592 546 507
D .038 .060 .086 .118 .154 .194 .240 .291 .346 .405 .470
U 2668 1707 1185 871 667 526 426 353 296 253 217 166
1-1/2 X 3/16 D .048 .075 .108 .147 .192 .243 .300 .363 .432 .506 .587 .765 12.5 17.1 4.4 6.1
C 2668 2134 1779 1524 1334 1185 1067 970 888 821 762 667
D .038 .060 .086 .118 .154 .194 .240 .291 .346 .405 .470 .614
U 3631 2324 1614 1185 908 717 580 480 403 343 296 226
1-3/4 X 3/16 D .041 .064 .093 .126 .165 .208 .257 .312 .370 .435 .505 .657 14.2 19.4 4.9 6.8
C 3651 2904 2420 2075 1815 1614 1452 1320 1210 1117 1037 908
D .033 .051 .074 .101 .132 .167 .206 .249 .296 .348 .403 .527
U 4743 3036 2107 1549 1185 937 759 626 526 448 387 296
D .036 .056 .081 .110 .144 .182 .225 .272 .324 .380 .441 .576 16.8 22.9 5.8 8.1
2 X 3/16 C 4743 3795 3162 2710 2371 2107 1897 1725 1581 1459 1354 1185
D .029 .045 .065 .088 .115 .146 .180 .218 .259 .304 .353 .461
U 6004 3842 2691 1959 1500 1185 960 793 667 568 489 374
D .032 .050 .072 .098 .128 .162 .200 .242 .288 .338 .392 .512 18.3 25.0 6.4 8.9
2-1/4 X 3/16 C 6004 4802 4002 3430 3001 2668 2401 2182 2001 1846 1715 1500
D .026 .040 .058 .078 .102 .130 .160 .194 .230 .270 .314 .410
U 7411 4743 3293 2419 1852 1463 1185 979 823 701 604 463
2-1/2 X 3/16 D .029 .045 .065 .088 .115 .146 .180 .218 .259 .304 .353 .461 19.8 27.2 6.9 9.6
C 7411 5929 4941 4235 3705 3293 2964 2695 2470 2280 2117 1852
D .023 .036 .052 .070 .192 .117 .144 .174 .207 .243 .282 .369
TO DEVELOP THE WEIGHT PER SQ. FT. FOR GRATINGS WITH RIVETS AT 3-1/2" O.C. ADD THE FOLLOWING FACTORS TO THE VALUES ABOVE:
FOR STEEL GRATINGS: 0.4 # PER SQ. FT.
FOR ALUMINUM GRATINGS: 0.2 # PER SQ. FT.
The loads shown above are for Riveted Steel Gratings type 18R7 and 18R3.5. To determine the load carrying capacities and deflections for alternative bar spacings, multiply the values
given by the following conversion factors:
RIVETED STEEL GRATING TYPES 12R7 AND 12R3.5 RIVETED ALUMINUM GRATING TYPES 18AR7 AND 18AR3.5 RIVETED ALUMINUM GRATING TYPES 12R7 AND 12R3.5
LOADS 1.40 LOADS .66 LOADS .93
DEFLECTION VALUES AS STATED DEFLECTION 2.00 DEFLECTION 2.00
EXAMPLE: 12R3.5 1-1/2" X 3/16" EXAMPLE: 18AR7 1" X 3/16" ALUMINUM EXAMPLE: 12R7 2" X 3/16" ALUMINUM
5'-0" UNSUPPORTED SPAN 3'-6" UNSUPPORTED SPAN 4'6" UNSUPPORTED SPAN
UNIF. LOAD = 596 LBS. DEFLECTION = .300 CONC. LOAD = 446 LBS.DEFLECTION = .352 UNIF. LOAD = 871 LBS. DEFLECTION = .364
9
STAIR TREADS
A L U M I N U M S TA I R T R E A D SlipNot® is registered trademark with WS Molnar Company. AlGrip™ is a trademark of Ross Technologies.
Groved Nosing Slip-Not® Nosing Abrasive Nosing is

Standard on is Optional on Optional on
Aluminum Treads Aluminum Treads Aluminum Treads
Standard Tread Widths1 Carrier Plate Dimensions Max Plank Tread Length2
# of Width (incudes nosing) Grating Grating Plank3
bearing DIM"A"
DIM"B" DIM"C"
Depth Depth Grating
bars
SG, SDF, SGLi Plank 1" 2-1/4" 3" 1" 30
SGI Series AR Series
ADT Series Series Series 1-1/4" 2-1/4" 3" 1-1/4" 36
5 6-3/16" 6-1/4" 6-3/16" 6-11/16" 6-3/8" 2-1/2" 1-1/2" 2-1/4" 3" 1-1/2" 44
6 7-3/8" 7-7/16" 7-3/8" 8" 7-1/4" 4-1/2" 1-3/4" 2-1/4" 3" 1-3/4" 53
7 8-9/16" 8-5/8" 8-9/16" 9-5/16" 8-3/4" 4-1/2"
2" 3-1/4" 3" 2" 63
8 9-3/4" 9-13/16" 9-3/4" 10-5/8" 9-15/16" 7"
9 10-15/16" 11" 10-15/16" 11-15/16" 11-1/8" 7" 2-1/4" 3-1/4" 3" 2-1/4" 66
10 12-1/8" 12-3/16" 12-1/8" 13-1/4" 12-3/8" 7" 2-1/2" 3-1/4" 3" 2-1/2" 70
Maximum Tread Length2 (in.)

SG, SGF, ADT Series SG, SGF, ADT Series SGI Series SGLi Series
Plain Surface Serrated Surface Striated Surface Striated Surface
19 15 11 7 19 15 11 7 19 15 11 7 19 15 11 7
Bar Size, 1-3/16" 15/16" 11/16" 7/16" 1-3/16" 15/16" 11/16" 7/16" 1-3/16" 15/16" 11/16" 7/16" 1-3/16" 15/16" 11/16" 7/16"
Inches c.c. c.c. c.c. c.c. c.c. c.c. c.c. c.c. c.c. c.c. c.c. c.c. c.c. c.c. c.c. c.c.
1 x 1/8 24 27 28 32 21 24 26 28
1 x 3/16 28 30 32 36 26 27 28 32 24 28 29 34
1 x 1/4 31 33 27 29 28 30 32 36
34
1-1/4 x 1/8 30 32 40 28 30 31 36
1-1/4 x 3/16 34 37 40 47 31 33 36 41 31 34 36 43
1-1/4 x 1/4 38 41 34 37 34 37 40 47
1-1/2 x 1/8 36 39 42 50 33 36 38 45
1-1/2 x 3/16 42 46 50 59 38 42 45 53 37 40 43 53
1-1/2 x 1/4 47 52 43 47 42 46 50 59
1-3/4 x 3/16 51 56 61 66 46 51 55 66
1-3/4 x 1/4 58 64 52 58 51 56 61 66
2 x 3/16 61 66 66 68 56 61 66 66 52 57 62 66
2 x 1/4 66 66 63 66 61 66 66 68
2-1/4 x 3/16 66 66 66 80 66 66 66 74
2-1/4 x 1/4 66 69 66 66 66 66 66 80
2-1/2 x 3/16 66 70 77 94 66 66 71 87 66 66 66 82
2-1/2 x 1/4 73 81 67 75 66 70 77 94
Additional configurations available upon inquiry. 1. Table of widths based on 3/16" thick bearing bars (1/4" I-Bar) and standard 1-3/16" c.c. bar spacing (1-1/8"
face-to-face for riveted grating. 2. Maximum tread length based on 300# concentrated load on front 5" of tread at center of tread length and max. D=1/240 of
length. Design treads exceeding 66" length for 300# concentrated loads at 1/3 points. Note: Riveted grating treads available upon inquiry. See page 23 for
description of Grating Series. 3. Plank Grating is standard Heavy Duty.

STAIR TREADS
S T E E L S TA I R T R E A D SlipNot® is registered trademark with WS Molnar Company. AlGrip™ is a trademark of Ross Technologies.
Checkerplate
Nosing is Standard
on Steel treads
Slip-Not® Nosing is
Available on Steel
Treads
Algrip™ Nosing is
Available & Recommended
on Steel Treads
Maximum Tread Length2 (in.)

W, SGCS, SGSS, W, SGCS, SGSS, Abrasive Nosing is
DT Series Plain Surface DT Series Serrated Surface Available on Steel Treads
19 15 11 7 19 15 11 7 but not Recommended
1-3/16" 15/16" 11/16" 7/16" 1-3/16" 15/16" 11/16" 7/16"
Bar Size,
c.c. c.c. c.c. c.c. c.c. c.c. c.c. c.c.
Inches
Carrier Plate
1 x 1/8 31 36 41 51 27 30 34 45 Dimensions Standard Tread Widths1
Grating DIM DIM # of Width (incudes nosing)
1 x 3/16 41 48 51 59 34 40 45 51 Depth "B" "C" DIM
bearing
W, SGCS, R "A"
1" 1-3/4" 2-1/2"
3" bars
SGSS, DT Series Series
1 x 1/4 49 53 42 46
1-1/4" 1-3/4" 3"
2-1/2" 5 6-3/16" 6-11/16" 2-1/2"
1-1/4 x 1/8 43 50 56 66 37 43 49 58 1-1/2" 2-1/4" 3" 6 7-3/8" 8" 4-1/2"
1-3/4" 2-1/4" 3" 7 8-9/16" 9-5/16" 4-1/2"

1-1/4 x 3/16 56 61 66 66 50 54 58 66
2" 3-1/4" 3" 8 9-3/4" 10-5/8" 7"
1-1/4 x 1/4 63 66 56 60
2-1/4" 3-1/4" 3" 9 10-15/16" 11-15/16" 7"
1-1/2 x 1/8 56 65 66 66 49 58 63 66 2-1/2" 3-1/4" 3" 10 12-1/8" 13-1/4" 7"
1-1/2 x 3/16 66 66 66 76 63 66 66 68
1-1/2 x 1/4 66 67 66 66
CARRIER PLATES & TREAD WIDTHS
Tread Width
1-3/4 x 3/16 66 72 78 95 66 66 71 85 Nosing
1-3/4 x 1/4 74 82 67 74
B C
*
2 x 3/16 78 87 95 115 72 79 86 105
2 x 1/4 89 99 82 91 11 8" "A" Dimension 1

8" Thick (Min.)
(See Table) Carrier Plate
A
2-1/4 x 3/16 92 103 112 136 85 95 103 125 7
" Hole 7
" x 1" Slot
16 16
2-1/4 x 1/4 106 118 97 108 *STEEL TREADS *ALUMINUM TREADS

3/4" thru 1-1/4" bearing bars = 1-3/4" All sizes = 2-1/4"
2-1/2 x 3/16 107 119 130 159 100 111 121 148 1-1/2" thru 2" bearing bars = 2-1/4"
2-1/2 x 1/4 123 137 114 127
Additional configurations available upon inquiry. 1. Table of widths based on 3/16" thick bearing bars (1/4" I-Bar) and standard 1-3/16" c.c. bar spacing (1-1/8"
face-to-face for riveted grating. 2. Maximum tread length based on 300# concentrated load on front 5" of tread at center of tread length and max. D=1/240 of
length. Design treads exceeding 66" length for 300# concentrated loads at 1/3 points. Note: Riveted grating treads available upon inquiry. See page 52 for
description of Grating Series.
11
ALUMINUM PLANK GRATING
A luminum Plank Grating produced in 6" wide

modular planks, in lengths up to 26'-0", is a
versatile alternative to bar grating. Manufactured by P U N C H PAT T E R N S A V A I L A B L E
extruding 6063 aluminum with integral I-beams and
a fluted, skid resistant walking surface, plank grating UNPUNCHED RECTANGULAR SQUARE ROUND
provides a lightweight flooring with exceptional (SOLID) PUNCHED PUNCHED PUNCHED
durability. Corrosion resistant, non-sparking, non- Solid surface Popular Linear Round
plank with 19/32" x 3" 19/32" punched
rusting and virtually maintenance free, Aluminum fluted skid staggered square plank with
Plank Grating is commonly used in sewage and water resistant pattern pattern standard
walking provides offers 13/16" in-
treatment plants for walkways and platforms. surface. maximum restricted line
Punched plank products offer excellent air circulation Ideal for use clear clear pattern
as an opening and openings shown, 1"
desirable for refrigeration floors and ceilings, as well economical distinctive and is round
as marine cargo holding systems. Available with plain solid architectural available in staggered
aluminum appearance. light and pattern is
or interlocking sides, these modular planks are easily floor. heavy duty also
fabricated into custom component panels with the planks. available.
simple addition of end banding. For enhanced skid
resistance on the walking surface, specify plank with
upset punched square or rectangular patterns.
P L A N K G R AT I N G L O A D TA B L E
P L A NHEAVY
K CDUTY
R O PLAIN
S S SIDE
SECTIONS PLANK WT. PER
SQ. FT.
CLEAR SPAN
3
"4
DEPTH 2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 8'-0"
thru
HEAVY DUTY PLAIN SIDE 21 2 "
1.200" 1.200"
U 435 278 193 142 108 85 69 LOADS AND DEFLECTIONS GIVEN IN THIS TABLE ARE THEORETICAL AND
3
4" 3/4” 2.2 D .121 .237 .342 .465 .608 .770 .950
thru C 435 348 290 248 217 193 174 ARE BASED ON A UNIT STRESS OF 12,000 PSI.
6" D .121 .190 .273 .371 .485 .614 .760
21 2 "
U = SAFE UNIFORM LOAD, LBS. PER SQ. FT.
1.200" 1.200" C = SAFE CONCENTRATED MID-SPAN LOAD,
U 833 533 370 272 208 164 133 110 92
1” 2.6 D .124 .193 .279 .380 .496 .628 .775 .938 1.117 LBS. PER FT. OF GRATING WIDTH
6" C 833 666 555 476 416 370 333 302 277 D = DEFLECTION IN INCHES
D .099 .155 .223 .304 .396 .502 .620 .748 .891
HEAVY DUTY INTERLOCKING SIDE U 1464 936 650 478 366 289 234 193 162 138 119 91
1-1/4” 3.2 D .107 .167 .241 .328 .428 .542 .669 .810 .964 1.131 1.312 1.714
C 1464 1171 976 836 732 650 585 532 488 450 418 366
D .085 .133 .192 .262 .342 .433 .535 .647 .771 .904 1.049 1.371
1"
HEAVY DUTY INTERLOCKING SIDE only
U 2167 1387 963 707 541 428 346 286 240 205 176 135
1.200" 1-1/2” 3.8 D .090 .141 .203 .277 .362 .458 .566 .684 .815 .956 1.109 1.449
1" C 2167 1734 1445 1238 1083 963 867 788 722 666 619 541
D .072 .113 .163 .221 .289 .366 .452 .547 .651 .764 .887 1.157
6" only
1.200"
U 2992 1915 1330 977 748 591 478 395 332 283 244 187
1-3/4” 4.4 D .078 .123 .177 .241 .315 .398 .492 .595 .708 .832 .964 1.260
6" C 2992 2394 1995 1710 1496 1330 1197 1088 997 920 855 748
D .062 .098 .141 .192 .251 .318 .393 .476 .566 .644 .771 1.007
U 3975 2544 1766 1298 993 785 636 525 441 376 324 248
2” 4.9 D .069 .108 .156 .212 .277 .351 .433 .524 .624 .732 .849 1.109
C 3975 3180 2650 2271 1987 1766 1590 1445 1325 1223 1135 993
D .055 .086 .124 .169 .221 .280 .346 .419 .499 .586 .679 .887
U 5109 3270 2270 1668 1277 1009 817 675 567 483 417 319
2-1/4” 5.5 D .061 .095 .137 .187 .244 .309 .382 .462 .550 .646 .749 .979
C 5109 4087 3406 2919 2554 2270 2043 1858 1703 1572 1459 1277
D .048 .076 .110 .149 .195 .247 .305 .370 .440 .517 .599 .783
U 5971 3821 2654 1949 1492 1179 955 789 663 565 487 373
2-1/2” 5.9 D .055 .086 .124 .169 .221 .279 .345 .418 .497 .584 .677 .884
C 5971 4777 3981 3412 2985 2654 2388 2171 1990 1837 1706 1492
D .044 .069 .099 .135 .176 .223 .276 .334 .398 .467 .541 .707
Diagonal (ADA) Punched * number indicates % open area
AlPlank 8* AlPlank 15* AlPlank 22*

6.000"
.5"

HEAVY DUTY GRATING
W elded Heavy-Duty products are designed to meet the need for gratings subject to
heavy rolling and static loads such as highways, plant floors, loading docks,
inlet covers and airports. Since these conditions can range from light-duty forklifts to
TABLE
TA B LOF
E OSPACINGS
F S PA CAVAILABLE
15W4
4"
15W2
2" 2"
semi-trucks and trailers carrying maximum allowable highway loads, heavy duty 15 15
"
"
16 16
gratings are manufactured in a wide variety of bar sizes and spacings.
Indiana Gratings Heavy-Duty products are designed in accordance with current
Bearing Bars at 15/16" O.C. - Cross Bars at 4" O.C. Bearing Bars at 15/16" O.C. - Cross Bars at 2" O.C.
AASHTO specifications for H-10 through H-20 loads. Automobile and forklift loads are
similarly evaluated with loads calculated and distributed in accordance with the 19W4 4" 19W2 2" 2"
criteria shown below. If your particular load conditions are not adequately addressed 3 3
1 "
16 1 "
16
in the load criteria presented, please contact our engineering staff and we will be
pleased to assist in the selection of a heavy-duty grating to satisfy your specific needs.
Bearing Bars at 1-3/16" O.C. - Cross Bars at 4" O.C. Bearing Bars at 1-3/16" O.C. - Cross Bars at 2" O.C.
22W4 4" 22W2 2" 2"
13 8" 13 8"
Optional: 30W4 4" 30W2 2" 2"

STANDARD RECTANGULAR
CROSS BARS 17 8 "
CROSS BARS 17 8 "
BANDING Bearing Bars at 1-7/8" O.C. - Cross Bars at 4" O.C. Bearing Bars at 1-7/8" O.C. - Cross Bars at 2" O.C.
Because heavy-duty gratings are commonly subjected to shock and impact loads 38W4 4" 38W2 2" 2"
it is highly recommended that all open ends be banded. The welded band bar
helps distribute impact loads and minimizes panel distortion when subjected to 2 3 8" 2 3 8"
repetitious traffic patterns. Banding details can be found on page 3.
S E R R AT E D S U R F A C E
Optional serrated bearing bars can be specified to enhance skid resistance.
WHEEL LOAD
LOAD DISTRIBUTION
(LBS.)
MAXIMUM TRAFFIC CONDITIONS (1/2 OF AXLE
BEARING BAR SELECTION LOAD + 30% PARALLEL PERPENDICULA
IMPACT) WITH AXLE R TO AXLE
Once the bar spacing is selected, the bearing bar size must be specified based
upon the anticipated load and the clear (unsupported) span to be served. The load Truck Traffic
tables on pages 11-13 provide the maximum safe clear simple span for our most 32,000 Lb. Axle Load 20,800 2 (C) + 20" 20"
Dual Wheels
popular products based on the maximum traffic conditions defined. These tables Modified AASHTO H-20 *
incorporate strict limitations where design deflection shall not exceed the lesser of
Truck Traffic
L/400 of the safe span indicated or 1/8 of one inch (.125). 24,000 Lb. Axle Load
15,600 2 (C) + 15" 15"
Dual Wheels
AASHTO H-15 *
CROSS BAR SELECTION
Truck Traffic
While bearing bar selection is critical for specifying a proper heavy-duty grating 16,000 Lb. Axle Load
for your application, the life-cycle of your installation will often be influenced by 10,400 2 (C) + 10" 10"
Single Wheels
selection of the appropriate cross bar. The table below details alternative cross bar AASHTO H-10 *
sizes available. The sizes listed for Sta ndard Loa ds are the standard twisted square Automobile Traffic
or round cross bars supplied by Indiana Gratings for a particular bearing bar size. 5,000 Lb. Vehicle
2,220 2 (C) + 8" 8"
1,200 Lb. Load
These sizes have been selected to maximize manufacturing efficiency and *
55% Drive Axle Load
economy. It is suggested that these sizes be specified when the grating is subject to
intermittent traffic and only occasional full capacity loading. 10,000 Lb. Cap. Lift Truck
14,400 Lb. Vehicle 13,480 11"
The cross bars listed for Severe Loading are optional and will provide superior 24,400Lb. Total Load
2 (C) + 11"
rigidity and durability when gratings are subjected to intense, continuous or 85% Drive Axle Load *
repetitious traffic. Ideal for trench covers, highways and inlet grates, these cross
6,000 Lb. Cap. Lift Truck
bars enhance lateral stiffness thereby extending the service life of the grating. 9,800 Lb. Vehicle 8,730 2 (C) + 7" 7"
When specifying gratings with bearing bars centered at 1-3/8”, 1-7/8” or 2-3/8”, 15,800Lb. Total Load
consideration of Severe Loading cross bars is highly recommended. 85% Drive Axle Load *
2,000 Lb. Cap. Lift Truck
4,200 Lb. Vehicle
NOTE: IN THE EVENT THAT A CROSS BAR SIZE IS NOT SPECIFIED, THE CROSS BAR SHALL BE 3,425 2 (C) + 4" 4"
6,200Lb. Total Load
SELECTED AT THE DISCRETION OF THE MANUFACTURER. 85% Drive Axle Load *
*C = CENTER TO CENTER SPACING ALLOWABLE STRESS - 20,000 PSI
OF BEARING BARS MODULUS OF ELASTICITY - 29,000,000 PSI
C R O S S B A R S E L E C T I O N TA B L E
BEARING BAR SIZE BB CENTERS 15/16", 1-3/16" and 1-3/8" BB CENTERS 1-7/8" and 2-3/8"
THICKNESS DEPTH STANDARD LOADS SEVERE LOADS STANDARD LOADS SEVERE LOADS
1/4" 1" - 2-1/2" 5/16" Twisted 5/16" Twisted 5/16" Twisted 5/16" Twisted
1/4" 3" - 5" 5/16" Twisted 1 x 1/4 3/8" Round 1 x 1/4
5/16" - 1/2" 3" - 5" 3/8" Round 1 x 3/8 7/16" Round 1 x 3/8
1/4" 5-1/2" - 7" 3/8" Round 1-1/4 x 1/4 7/16" Round 1-1/4 x 1/4
5/16" - 1/2" 5-1/2" - 7" 3/8" Round 1-1/4 x 3/8 7/16" Round 1-1/4 x 3/8
THE SIZES SHOWN ABOVE ARE LISTED AS MINIMUMS. TWISTED AND ROUND CROSS BARS ARE TYPICALLY INTERCHANGEABLE AND, UNLESS OTHERWISE SPECIFIED, MAY BE SUBSTITUTED AT THE DISCRETION OF THE MANUFACTURER. IN SUBSTITUTION, THE
CROSS SECTIONAL AREA OF THE ALTERNATIVE CROSS BAR SHALL EQUAL OR EXCEED THAT OF THE MINIMUM SIZE LISTED ABOVE.
13
HEAVY DUTY GRATING
H O W T O S P E C I F Y H E A V Y D U T Y G R AT I N G
Heavy-Duty Welded Steel Grating shall be as manufactured by Indiana Gratings INC., 212 W. Douglas St. Martinsville, IN 46151, (800) 321-4314.
22W4
Grating shall be type _________________ 3-1/2" X 3/8"
with __________________ 1-3/8"
bearing bars spaced at __________inches 1" X 3/8"
on center and ____________cross bars spaced at
4
_________ 42.3
inches on center. Weight per square foot________lbs. Heavy-Duty Grating shall be capable of carrying a ________ 4'-10"
H-20 load on a __________ clear
GALVANIZED
span. Open ends of grating shall be banded. Heavy-Duty Grating shall be________________________after fabrication.
L O A D TA B L E : T Y P E 1 5 W 4
BEARING BARS 15/16" ON CENTER, CROSS BARS 4" ON CENTER (2" ON CENTER CROSS BARS ALSO AVAILABLE)
H-20 TRUCK H-15 TRUCK H-10 TRUCK AUTO TRAFFIC 5 TON FORKLIFT 3 TON FORKLIFT 1 TON FORKLIFT
BEARING WEIGHT LBS. SECTION MOD. CROSS BAR H-20 TRUCK H-15 TRUCK H-10 TRUCK AUTO TRAFFIC 5 TON FORKLIFT 3 TON FORKLIFT 1 TON FORKLIFT
BAR SIZE PER SQ. FT. PER FT. OF WIDTH SIZE
MAXIMUM SAFE SPAN
1 x 1/4 12.4 0.533 1'-1" 0'-11" 0'-9" 1'-7" 0'-8" 0’-7" 0'-8"
1 x 5/I6 15.2 0.667 SEE 1'-2" 1'-0" 0'-10" 1'-10" 0'-9" 0'-8" 0'-9"
1 x 3/8 18.1 0.800 1'-3" 1'-1" 0'-11" 1'-11" 0'-10" 0'-8" 0'-11"
1-1/4 x 1/4 15.3 0.833 1'-3" 1'-1" 0'-11" 2'-2" 0'-10" 0'-9" 0'-11"
1-1/4 x 5/16 18.5 1.042 CROSS 1'-5" 1'-3" 1'-0" 2'-5" 1'-0" 0'-10" 1'-1"
1-1/4 x 3/8 22.3 1.250 1'-6" 1'-4" 1'-2" 2'-8" 1'-1" 0'-11" 1'-4"
1-1/2 x 1/4 18.1 1.200 1'-6" 1'-4" 1'-2" 2'-10" 1'-1" 0'-11" 1'-3"
1-1/2 x 5/16 22.4 1.500 BAR 1'-8" 1'-6" 1'-4" 3'-2" 1'-3" 1'-1" 1'-7"
1-1/2 x 3/8 26.6 1.800 1'-10" 1'-8" 1'-6" 3'-6" 1'-4" 1'-3" 1'-10"
1-3/4 x 1/4 21.0 1.633 1'-9" 1'-7" 1'-5" 3'-7" 1'-3" 1'-2" 1'-8"
1-3/4 x 5/16 25.9 2.042 SELECTION 2'-0" 1'-10" 1'-8" 4'-0" 1'-6" 1'-5" 2'-1"
1-3/4 x 3/8 30.9 2.450 2'-3" 2'-1" 1'-11" 4'-3" 1'-9" 1'-8" 2'-6"
2 x 1/4 23.8 2.133 2'-0" 1'-10" 1'-9" 4'-3" 1'-7" 1'-5" 2'-2"
2 x 5/16 29.5 2.667 TABLE 2'-4" 2'-2" 2'-1" 4'-7" 1'-10" 1'-9" 2'-8"
2 x 3/8 35.1 3.200 2'-8" 2'-6" 2'-5" 4'-11" 2'-1" 2'-1" 3'-2"
2-1/4 x 1/4 26.7 2.700 2'-4" 2'-2" 2'-1" 4'-10" 1'-10" 1'-9" 2'-8"
2-1/4 x 5/16 33.0 3.375 PAGE 2'-9" 2'-7" 2'-6" 5'-2" 2'-2" 2'-2" 3'-4"
2-1/4 x 3/8 39.4 4.050 3'-2" 3'-0" 2'-11" 5'-6" 2'-7" 2'-6" 4'-0"
2-1/2 x 1/4 29.5 3.333 2'-9" 2'-7" 2'-6" 5'-4" 2'-2" 2'-2" 3'-4"
2-1/2 x 5/16 36.6 4.167 10 3'-3" 3'-1" 3'-0" 5'-9" 2'-8" 2'-7" 4'-1"
2-1/2 x 3/8 43.7 5.000 3'-9" 3'-7" 3'-7" 6'-2" 3'-1" 3'-1" 4'-5"
3 x 1/4 35.2 4.800 3'-7" 3'-6" 3'-5" 6'-5" 3'-0" 3'-0" 4'-8"
3 x 5/16 43.9 6.000 4'-4" 4'-2" 4'-2" 6'-11" 3'-7" 3'-8" 5'-0"
3 x 3/8 52.3 7.200 4'-7" 4'-8" 4'-8" 7'-4" 4'-3" 4'-4" 5'-4"
3-1/2 x 1/4 40.9 6.533 4'-7” 4'-6" 4'-6" 7'-6" 3'-11" 3'-11" 5'-5"
3-1/2 x 5/16 51.0 8.167 5'-1" 5'-1" 5'-2" 8'-1" 4'-9" 4'-10" 5'-10"
3-1/2 x 3/8 60.8 9.800 5'-4" 5'-5" 5'-6" 8'-7" 5'-2" 5'-3" 6'-3"
4 x 1/4 46.7 8.533 5'-4" 5'-5" 5'-5" 8'-7" 4'-11" 5'-1" 6'-3"
4 x 5/16 58.1 10.667 5'-9" 5'-10" 5'-11" 9'-3" 5'-6" 5'-8" 6'-9"
4 x 3/8 69.4 12.800 6'-2" 6'-2" 6'-3" 9'-8" 5'-11" 6'-0" 7'-2"
BEARING BARS 1-3/16" ON CENTER, CROSS BARS 4" ON CENTER (2" ON CENTER CROSS BARS ALSO AVAILABLE)
MAXIMUM SAFE SPAN
1 x 1/4 10.1 0.421 1'-1" 0'-10" 0'-8” 1'-5" 0'-8" 0'-6" 0'-7"
1 x 5/16 12.3 0.526 SEE 1'-1" 0'-11" 0'-9" 1'-7" 0'-8" 0'-7" 0'-8"
1 x 3/8 14.6 0.632 1'-2" 1'-0" 0'-10" 1'-9" 0'-9" 0'-8" 0'-9"
1-1/4 x 1/4 12.3 0.658 1'-2" 1'-0" 0'-10" 2'-0" 0'-9" 0'-8" 0'-10"
1-1/4 x 5/16 15.1 0.822 CROSS 1'-3" 1'-1" 0'-11" 2'-3" 0'-10" 0'-9" 1'-0"
1-1/4 x 3/8 17.9 0.987 1'-5" 1'-2" 1'-0" 2'-5" 1'-0" 0'-10" 1'-2"
1-1/2 x 1/4 14.6 0.947 1'-4" 1'-2" 1'-0" 2'-7" 0'-11" 0'-10" 1'-1"
1-1/2 x 5/16 18.0 1.184 BAR 1'-6" 1'-4" 1'-2" 2'-11" 1'-1" 0'-11" 1'-4"
1-1/2 x 3/8 21.3 1.421 1'-8" 1'-6" 1'-4" 3'-2" 1'-2" 1'-1" 1'-7"
1-3/4 x 1/4 16.9 1.289 1'-7" 1'-5" 1'-3" 3'-3" 1'-2" 1'-0" 1'-6"
1-3/4 x 5/16 20.8 1.612 SELECTION 1'-9" 1'-7" 1'-5" 3'-8" 1'-4" 1'-3" 1'-10"
1-3/4 x 3/8 24.7 1.934 1'-11" 1'-9" 1'-8" 4'-0" 1'-6" 1'-5" 2'-2"
2 x 1/4 19.1 1.684 1'-10" 1'-8" 1'-6" 4'-0" 1'-4" 1'-3" 1'-10"
2 x 5/16 23.6 2.105 TABLE 2'-1" 1'-11" 1'-9" 4'-4" 1'-7" 1'-6" 2'-4"
2 x 3/8 28.2 2.526 2'-4" 2'-2" 2'-1" 4'-7" 1'-10" 1'-7" 2'-9"
2-1/4 x 1/4 21.4 2.131 2'-1" 1'-11" 1'-9" 4'-6" 1'-7" 1'-6" 2'-4"
2-1/4 x 5/16 26.5 2.664 PAGE 2'-5" 2'-3" 2'-2" 4'-11" 1'-11" 1'-10" 2'-11"
2-1/4 x 3/8 31.5 3.197 2'-8" 2'-7" 2'-6" 5'-2" 2'-2" 2'-2" 3'-5"
2-1/2 x 1/4 23.7 2.631 2'-4" 2'-3" 2'-1" 5'-0" 1'-10" 1'-10" 2'-10"
2-1/2 x 5/16 29.3 3.289 10 2'-9" 2'-7" 2'-7" 5'-5" 2'-3" 2'-3" 3'-6"
2-1/2 x 3/8 34.9 3.947 3'-2" 3'-0" 3'-0" 5'-9" 2'-7" 2'-7" 4'-2"
3 x 1/4 28.2 3.789 3'-1" 2'-11" 2'-11" 6'-0" 2'-6" 2'-6" 4'-1"
3 x 5/16 35.1 4.736 3'-7" 3'-6" 3'-6" 6'-6" 3'-0" 3'-1" 4'-9"
3 x 3/8 41.8 5.684 4'-2" 4'-1" 4'-2" 6'-11" 3'-7" 3'-8" 5'-1"
3-1/2 x 1/4 32.8 5.157 3'-10" 3'-9" 3'-9" 7'-1" 3'-3" 3'-4" 5'-2"
3-1/2 x 5/16 40.7 6.447 4'-8" 4'-7" 4'-8" 7'-7" 4'-0" 4'-1" 5'-7"
3-1/2 x 3/8 48.6 7.736 5'-0" 5'-0" 5'-1" 8'-1" 4'-8" 4'-10" 5'-11"
4 x 1/4 37.3 6.736 4'-10" 4'-9" 4'-8" 8'-1" 4'-2" 4'-3" 5'-11"
4 x 5/16 46.4 8.420 5'-5" 5'-5" 5'-6" 8'-8" 5'-1" 5'-3" 6'-5"
4 x 3/8 55.4 11.104 5'-9" 5'-9" 5'-10" 9'-5" 5'-6" 5'-8" 6'-9"
5 x 1/4 46.4 10.525 6'-3" 6'-3" 6'-5" 10'-1" 6'-0" 6'-2" 7'-5"
5 x 3/8 68.9 15.788 7'-1" 7'-2" 7'-4" 11'-7" 6'-1l" 7'-1" 8'-6"
5 x 1/2 91.3 21.050 7'-10" 7'-11" 8'-1" 12'-9" 7'-7" 7'-9" 9'-4"
6 x 1/4 55.6 15.156 7'-6" 7'-6" 7'-8" 12'-1" 7'-3" 7'-5" 8'-11"
6 x 3/8 82.5 22.734 8'-6" 8'-7" 8'-9" 13'-10" 8'-3" 8'-6" 10'-2"
6 x 1/2 109.3 30.312 9'-5" 9'-6" 9'-8" 15'-3" 9'-1" 9'-4" 11'-3"
7 x 1/4 64.6 20.629 8'-8" 8'-9" 8'-11" 14'-2" 9'-5" 8'-8" 10'-5"
7 x 3/8 96.0 30.944 9'-11" 10'-0" 10'-3" 16'-2" 9'-8" 9'-11" 11'-11"
7 x 1/2 127.3 41.258 10'-11" 11'-1" 11'-3" 17'-10" 10'-7" 10'-11" 13-1"

HEAVY DUTY GRATING
MAXIMUM SAFE SPAN
1 x 1/4 8.9 0.364 1'-0" 0'-10" 0'-7" 1'-3" 0'-7" 0'-6" 0'-6"
1 x 5/16 10.8 0.455 SEE 1'-1" 0'-10" 0'-8" 1'-6" 0'-8" 0'-6" 0'-7"
1 x 3/8 12.8 0.545 1'-1" 0'-11" 0'-9" 1'-8" 0'-9" 0'-7" 0'-9"
1-1/4 x 1/4 10.8 0.568 1'-2" 0'-11" 0'-9" 1'-10" 0'-9" 0'-7" 0'-9"
1-1/4 x 5/16 13.3 0.710 CROSS 1'-3" 1'-0" 0'-10" 2'-1" 0'-10" 0'-8" 0'-11"
1-1/4 x 3/8 15.7 0.852 1'-4" 1'-1" 1'-0" 2'-3" 0'-11" 0'-9" 1'-1"
1-1/2 x 1/4 12.8 0.818 1'-3" 1'-1" 0'-11" 2'-5" 0'-11" 0'-9" 1'-0"
1-1/2 x 5/16 15.7 1.023 BAR 1'-5" 1'-3" 1'-1" 2'-9" 1'-0" 0'-11" 1'-3"
1-1/2 x 3/8 18.7 1.227 1'-6" 1'-4" 1'-3" 3'-0" 1'-1" 1'-0" 1'-6"
1-3/4 x 1/4 14.8 1.114 1'-6" 1'-3" 1'-2" 3'-1" 1'-1" 0'-11" 1'-4"
1-3/4 x 5/16 18.2 1.392 SELECTION 1'-8" 1'-6" 1'-4" 3'-5" 1'-3" 1'-1" 1'-8"
1-3/4 x 3/8 21.6 1.670 1'-10" 1'-8" 1'-6" 3'-9" 1'-4" 1'-3" 1'-11"
2 x 1/4 16.7 1.455 1'-8" 1'-6" 1'-4" 3'-11" 1’-3" 1'-2" 1'-9"
2 x 5/16 20.6 1.818 TABLE 1'-11" 1'-9" 1'-7" 4'-2" 1'-5" 1'-5" 2'-1"
2 x 3/8 24.5 2.182 2'-1" 2'-0" 1'-10" 4'-5" 1'-8" 1'-7" 2'-6"
2-1/4 x 1/4 18.7 1.841 1'-11" 1'-9" 1'-8" 4'-4" 1'-6" 1'-5" 2'-2"
2-1/4 x 5/16 23.1 2.301 PAGE 2'-2" 2'-0" 1'-11" 4'-8" 1'-9" 1'-8" 2'-8"
2-1/4 x 3/8 27.5 2.761 2'-6" 2'-4" 2'-3" 5'-0" 2'-0" 2'-0" 3'-2"
2-1/2 x 1/4 20.7 2.273 2'-2" 2'-0" 1'-11" 4'-10" 1'-8" 1'-8" 2'-7"
2-1/2 x 5/16 25.6 2.841 10 2'-6" 2'-5" 2'-4" 5'-3" 2'-0" 2'-0" 3'-3"
2-1/2 x 3/8 30.4 3.409 2'-10" 2'-9" 2'-8" 5'-7" 2'-4" 2'-4" 3'-10"
3 x 1/4 24.6 3.273 2'-9" 2'-8" 2'-7" 5'-10" 2'-3" 2'-3" 3'-9"
3 x 5/16 30.6 4.091 3'-3" 3'-2" 3'-2" 6'-3" 2'-9" 2'-9" 4'-7"
3 x 3/8 36.4 4.909 3'-9" 3'-8" 3'-9" 6'-8" 3'-2" 3'-4" 4'-11"
3-1/2 x 1/4 28.6 4.455 3'-6" 3'-5" 3'-5" 6'-10" 2'-11" 3'-0" 5'-0"
3-1/2 x 5/16 35.5 5.568 4'-2" 4'-1" 4'-2" 7'-4" 3'-9" 3'-8" 5'-5"
3-1/2 x 3/8 42.3 6.682 4'-10" 4'-10" 4'-11" 7'-9" 4'-2" 4'-5" 5'-9"
4 x 1/4 32.5 5.818 4'-4" 4'-3" 4'-4" 7'-9" 3'-9" 3'-10" 5'-9"
4 x 5/16 40.4 7.273 5'-2" 5'-2" 5'-4" 8'-4" 4'-6" 4'-9" 6'-2"
4 x 3/8 48.2 8.727 5'-6" 5'-6" 5'-8" 8'-11" 5'-4" 5'-5" 6'-7"
5 x 1/4 40.4 9.091 6'-0" 6'-0" 6'-2" 9'-9" 5'-7" 5'-11" 7'-2"
5 x 3/8 60.0 13.636 6'-10" 6'-11" 7'-0" 11'-2" 6'-7" 6'-10" 8'-3"
5 x 1/2 79.3 18.182 7'-6" 7'-7" 7'-9" 12'-3" 7'-3" 7'-6" 9'-1"
6 x 1/4 48.4 13.091 7'-2" 7'-3" 7'-5" 11'-8" 6'-11" 7'-2" 8'-8"
6 x 3/8 71.8 19.636 8'-2" 8'-3" 8'-5" 13'-4" 7'-11" 8'-2" 9'-11"
6 x 1/2 95.0 26.182 9'-0" 9'-1" 9'-4" 14'-8" 8'-9" 9'-0" 10'-11"
7 x 1/4 56.3 17.818 9'-4" 9'-5" 9'-7" 13'-7" 8'-1" 8'-4" 10'-1"
7 x 3/8 83.5 26.727 9'-6" 9'-8" 9'-10" 15'-7" 9'-3" 9'-7" 11'-8"
7 x 1/2 110.6 35.636 10'-6" 10'-7" 10'-10" 17'-2" 10'-2" 10'-6" 12'-8"
MAXIMUM SAFE SPAN
1 x 1/4 6.8 0.267 1'-0" 0'-9" 0'-7" 1'-1" 0'-7" 0'-5" 0'-6"
1 x 5/16 8.3 0.333 SEE 1'-0" 0'-10" 0'-7" 1'-3" 0'-7" 0'-6" 0'-7"
1 x 3/8 9.7 0.400 1'-1" 0'-10" 0'-8" 1'-6" 0'-8" 0'-6" 0'-8"
1-1/4 x 1/4 8.3 0.417 1'-1" 0'-10" 0'-8" 1'-6" 0'-8" 0'-6" 0'-8"
1-1/4 x 5/16 10.1 0.521 CROSS 1'-1" 0'-11" 0'-9" 1'-10" 0'-9" 0'-7” 0'-9"
1-1/4 x 3/8 11.9 0.625 1'-2" 1'-0" 0'-10" 2'-1" 0'-10" 0'-8" 0'-11"
1-1/2 x 1/4 9.8 0.600 1'-2" 1'-0" 0'-10" 2'-1" 0'-9" 0'-8" 0'-11"
1-1/2 X 5/16 12.0 0.750 BAR 1'-3" 1'-1" 0'-11" 2'-5" 0'-10" 0'-9" 1'-1"
1-1/2 x 3/8 14.1 0.900 1'-4" 1'-2" 1'-0" 2'-8" 1'-0" 0'-10" 1'-3"
1-3/4 x 1/4 11.2 0.817 1'-4" 1'-2" 1'-0" 2'-8" 0'-11" 0'-10" 1'-2"
1-3/4 x 5/16 13.8 1.021 SELECTION 1'-5" 1'-3" 1'-2" 3'-1" 1'-0" 0'-11" 1'-5"
1-3/4 x 3/8 16.3 1.225 1'-7" 1'-5" 1'-3" 3'-5" 1'-2" 1'-1" 1'-8"
2 x 1/4 12.7 1.067 1'-6" 1'-4" 1'-2" 3'-5" 1'-1" 1'-0" 1'-6"
2 x 5/16 15.6 1.333 TABLE 1'-8" 1'-6" 1'-4" 3'-11" 1'-3" 1'-2" 1'-10"
2 x 3/8 18.5 1.600 1'-10" 1'-8" 1'-7" 4'-1" 1'-5" 1'-4" 2'-2"
2-1/4 x 1/4 14.2 1.350 1'-8" 1'-6" 1'-4" 4'-1" 1'-3" 1'-2" 1'-10"
2-1/4 x 5/16 17.4 1.688 PAGE 1'-10" 1'-9" 1'-7" 4'-4" 1'-5" 1'-5" 2'-3"
2-1/4 x 3/8 20.7 2.025 2'-1" 1'-11" 1'-10" 4'-8" 1'-8" 1'-8" 2'-8"
2-1/2 x 1/4 15.6 1.667 1'-10" 1'-8" 1'-7" 4'-6" 1'-5" 1'-5" 2'-3"
2-1/2 x 5/16 19.3 2.083 10 2'-1" 2'-0" 1'-11" 4'-10" 1'-8" 1'-8" 2'-9"
2-1/2 x 3/8 22.9 2.500 2'-5" 2'-3" 2'-3" 5'-2" 1'-11" 2'-0" 3'-3"
3 x 1/4 18.7 2.400 2'-4" 2'-2" 2'-2" 5'-5" 1'-11" 1'-11" 3'-2"
3 x 5/6 23.4 3.000 2'-8" 2'-7" 2'-7" 5'-10" 2'-3" 2'-4" 3'-11"
3 x 3/8 27.8 3.600 3'-1" 3'-0" 3'-0" 6'-2" 2'-7" 2'-9" 4'-8"
3-1/2 x 1/4 21.6 3.267 2'-10" 2'-9" 2'-9" 6'-4" 2'-5" 2'-6" 4-3"
3-1/2 x 5/16 27.1 4.083 3'-5" 3'-4" 3'-4" 6'-10" 2'-11" 3'-1" 5'-1"
3-1/2 x 3/8 32.2 4.900 3'-11" 3'-10" 4'-0" 7'-3" 3'-5" 3'-7" 5'-5"
4 x 1/4 24.5 4.267 3'-6" 3'-5" 3'-6" 7'-3" 3'-0" 3'-2" 5'-5"
4 x 5/16 30.7 5.333 4'-2" 4'-2" 4'-4" 7'-9" 3'-8" 3'-11" 5'-10"
4 x 3/8 36.5 6.400 4'-10" 4'-10" 5'-1" 8'-3" 4'-4" 4'-8" 6'-3"
5 x 1/4 30.4 6.667 5'-0" 5'-0" 5'-3" 9'-0" 4'-6" 4'-10" 6'-9"
5 x 3/8 45.3 10.000 6'-3" 6'-4" 6'-6" 10'-4" 6'-1" 6'-4" 7'-9"
5 x 1/2 59.7 13.333 6'-10" 6'-11" 7'-2" 11'-5" 6'-9" 7'-0" 8'-7"
6 x 1/4 36.7 9.600 6'-7" 6'-8" 6'-10" 10'-10" 6'-5" 6'-8" 8'-2"
6 x 3/8 54.0 14.400 7'-6" 7'-7" 7'-10" 12'-5" 7-4" 7'-7" 9'-4"
6 x 1/2 71.3 19.200 8'-3" 8'-4" 8'-7" 13'-8" 8'-1" 8'-5" 10'-3"
7 x 1/4 42.5 13.067 7'-7" 7'-9" 8'-0" 12'-8" 7'-6" 7'-9" 9'-6"
7 x 3/8 62.8 19.600 8'-9" 8'-10" 9'-1" 14'-6" 8'-7" 8'-11" 10'-11"
7 x 1/2 82.9 26.133 9'-7" 9'-9" 10'-0" 15'-11" 9'-5" 9'-9" 12'-0"
15
HEAVY DUTY GRATING
L O A D TA B L E : T Y P E 38W4
37R5
MAXIMUM SAFE SPAN
1 x 1/4 5.7 0.211 0'-11" 0'-9" 0'-7" 1'-0" 0'-7" 0'-5" 0'-5"
1 x 5/16 6.8 0.263 SEE 1'-0" 0'-9" 0'-7" 1'-2" 0'-7" 0'-5" 0'-6"
1 x 3/8 8.0 0.316 1'-0" 0'-10" 0'-8" 1'-7" 0'-8" 0'-6" 0'-7"
1-1/4 x 1/4 6.8 0.329 1'-0" 0'-10" 0'-8" 1'-7" 0'-8" 0'-6" 0'-7"
1-1/4 x 5/16 8.3 0.411 CROSS 1'-1" 0'-10" 0'-8" 1'-7" 0'-8" 0'-7" 0'-9"
1-1/4 x 3/8 9.7 0.493 1'-1" 0'-11" 0'-9" 1'-10" 0'-9" 0'-7" 0'-10"
1-1/2 x 1/4 8.0 0.474 1'-1" 0'-11" 0'-9" 1'-10" 0'-9" 0'-7" 0'-10"
1-1/2 x 5/16 9.8 0.592 BAR 1'-2" 1'-0" 0'-10" 2'-2" 0'-10" 0'-8" 1'-0"
1-1/2 x 3/8 11.5 0.711 1'-3" 1'-1" 0'-11" 2'-6" 0'-11" 0'-9" 1'-2"
1-3/4 x 1/4 9.2 0.645 1'-3" 1'-0" 0'-11" 2'-4" 0'-10" 0'-9" 1'-0"
1-3/4 x 5/16 11.2 0.806 SELECTION 1'-4" 1'-2" 1'-0" 2'-10" 0'-11" 0'-10" 1'-3"
1-3/4 x 3/8 13.2 0.967 1'-5" 1'-3" 1'-2" 3'-2" 1'-1" 1'-0" 1'-6"
2 x 1/4 10.4 0.842 1'-4" 1'-2" 1'-0" 3'-0" 1'-0" 0'-11" 1'-4"
2 x 5/16 12.7 1.053 TABLE 1'-6" 1'-4" 1'-3" 3'-6" 1'-1" 1'-0" 1'-7"
2 x 3/8 15.0 1.263 1'-8" 1'-6" 1'-4" 3'-10" 1'-3" 1'-2" 1'-11"
2-1/4 x 1/4 11.5 1.066 1'-6" 1'-4" 1'-3" 3'-8" 1'-1" 1'-1" 1'-8"
2-1/4 x 5/16 14.1 1.332 PAGE 1'-8" 1'-6" 1'-5" 4'-2" 1'-3" 1'-3" 2'-0"
2-1/4 x 3/8 16.7 1.599 1'-10" 1'-8" 1'-8" 4'-5" 1'-6" 1'-5" 2'-5"
2-1/2 x 1/4 12.7 1.316 1'-8" 1'-6" 1'-5" 4'-3" 1'-3" 1'-3" 2'-0"
2-1/2 x 5/16 15.6 1.645 10 1'-11" 1'-9" 1'-8" 4'-7" 1'-6" 1'-6" 2'-6"
2-1/2 x 3/8 18.5 1.974 2'-1" 2'-0" 1'-11" 4'-11" 1'-8" 1'-9" 2'-11"
3 x 1/4 15.2 1.895 2'-1" 1'-11" 1'-10" 5'-2" 1'-8" 1'-8" 2'-10"
3 x 5/16 19.1 2.368 2'-4" 2'-3" 2'-3" 5'-6" 1'-11" 2'-0" 3'-6"
3 x 3/8 22.5 2.842 2'-8" 2'-7" 2'-7" 5'-11" 2'-3" 2'-5" 4'-2"
3-1/2 x 1/4 17.5 2.579 2'-6" 2'-5" 2'-5" 6'-0" 2'-1" 2'-2" 3'-9"
3-1/2 x 5/16 22.0 3.224 2'-11" 2'-10" 2'-11" 6'-5" 2'-6" 2'-8" 4'-8"
3-1/2 x 3/8 26.0 3.868 3'-4" 3'-4" 3'-5" 6'-10" 2'-11" 3'-2" 5'-3"
4 x 1/4 19.9 3.368 3'-0" 2'-11" 3'-0" 6'-10" 2'-7" 2'-9" 4'-11"
4 x 5/16 24.9 4.211 3'-7" 3'-7" 3'-8" 7'-5" 3'-2" 3'-5" 5'-7"
4 x 3/8 29.5 5.053 4'-2" 4'-2" 4'-4" 7'-10" 3'-8" 4'-0" 6'-0"
5 x 1/4 24.5 5.263 4'-3" 4'-3" 4'-6" 8'-7" 3'-10" 4'-2" 6'-6"
5 x 3/8 36.5 7.895 5'-10" 5'-11" 6'-2" 9'-10" 5'-6" 6'-0" 7'-6"
5 x 1/2 48.0 10.526 6'-5" 6'-7" 6'-9" 10'-10" 6'-4" 6'-8" 8'-3"
6 x 1/4 29.6 7.579 5'-10" 5'-11" 6'-4" 10'-1" 5'-4" 5'-11" 7'-10"
6 x 3/8 43.5 11.368 7'-0" 7'-2" 7'-5" 11'-9" 6'-11" 7'-3" 9'-0"
6 x 1/2 57.3 15.158 7'-9" 7'-10" 8'-2" 13'-0" 7'-8" 8'-0" 9'-11"
7 x 1/4 34.3 10.316 7'-2" 7'-3" 7'-6" 12'-0" 7'-1" 7'-5" 9'-2"
7 x 3/8 50.5 15.474 8'-2" 8'-4" 8'-7" 13'-9" 8'-1" 8'-5" 10'-6"
7 x 1/2 66.6 20.632 9'-0" 9'-2" 9'-6" 15'-2" 8'-11" 9'-4" 11'-7"
BRIDGE DECKING
B ridge Decking is manufactured by cold-press riveting

truss shaped recticuline bars to rectangular bearing
bars. The resulting product is an exceptionally durable heavy
BEARING BAR
THICKNESSES
1/4", 5/16" OR 3/8" 5" RIVET
THE FOLLOWING LOAD
TABLE WAS
DEVELOPED USING
THE "MAXIMUM
duty grating with superior stiffness and lateral stability. TRAFFIC
FACE TO FACE 2-5/16" CONDITIONS"
Bridge decking is often the preferred heavy duty grating for
FOUND ON PAGE 10
concentrated or stress applications subject to impact and OF THIS CATALOG
repetitive loads. Common applications include bridge floors, TYPE 37R5
RECTICULINE BAR
highways, inlets, and airport trench drain covers. 3/16" X 1-1/2" DEFLECTION IS LIMITED TO THE
LESSER OF L/400 OR .125
L O A D TA B L E : T Y P E 3 8 R 4 B R I D G E D E C K I N G
BEARING BARS 2-5/16" FACE TO FACE, RIVETS 5" ON CENTER
BEARING RECTICULINE WEIGHT LBS. SECTION MOD. H-20 TRUCK H-15 TRUCK H-10 TRUCK AUTO TRAFFIC 5 TON FORKLIFT 3 TON FORKLIFT 1 TON FORKLIFT
BAR SIZE BAR SIZE PER SQ. FT. PER FT. OF WIDTH
MAXIMUM SAFE SPAN
2-1/2 x 1/4 1-1/2 x 3/16 17.1 1.220 1'-6" 1'-4" 1'-2" 3'-4" 1'-1" 0'-11" 1'-3"
2-1/2 x 5/16 1-1/2 x 3/16 19.3 1.488 1'-8" 1'-6" 1'-4" 4'-0" 1'-2" 1'-1" 1'-7"
2-1/2 x 3/8 1-1/2 x 3/16 21.2 1.744 1'-10" 1'-8" 1'-6" 4'-4" 1'-4" 1'-3" 1'-9"
3 x 1/4 1-1/2 x 3/16 19.1 1.756 1'-10" 1'-8" 1'-6" 4'-7" 1'-4" 1'-3" 1'-10"
3 x 5/16 1-1/2 x 3/16 21.7 2.143 2'-1" 1'-10" 1'-9" 4'-11" 1'-7" 1'-6" 2'-2"
3 x 3/8 1-1/2 x 3/16 24.0 2.512 2'-3" 2'-1" 2'-0" 5'-2" 1'-9" 1'-8" 2'-6"
3-1/2 x 1/4 1-1/2 x 3/16 21.0 2.390 2'-2" 2'-0" 1'-11" 5'-4" 1'-8" 1'-7" 2'-5"
3-1/2 x 5/16 1-1/2 x 3/16 24.1 2.917 2'-6" 2'-4" 2'-3" 5'-9" 2'-0" 1'-11" 2'-11"
3-1/2 x 3/8 1-1/2 x 3/16 26.9 3.419 2'-9" 2'-8" 2'-7" 6'-1" 2'-3" 2'-2" 3'-5"
4 x 1/4 1-1/2 x 3/16 23.0 3.122 2'-7" 2'-6" 2'-4" 6'-2" 2'-1" 2'-0" 3'-1"
4 x 5/16 1-1/2 x 3/16 26.6 3.810 3'-0" 2'-10" 2'-10" 6'-7" 2'-5" 2'-5" 3'-9"
4 x 3/8 1-1/2 x 3/16 29.7 4.465 3'-5" 3'-3" 3'-2" 6'-11" 2'-9" 2'-9" 4'-5"
5 x 1/4 1-1/2 x 3/16 25.0 4.878 3'-8" 3'-6" 3'-6" 7'-8" 3'-0" 3'-0" 4'-9"
5 x 5/16 1-1/2 x 3/16 31.4 5.952 4'-3" 4'-2" 4'-2" 8'-2" 3'-7" 3'-7" 5'-10"
5 x 3/8 1-1/2 x 3/16 35.4 6.977 4'-10" 4'-9" 4'-10" 8'-8" 4'-1" 4'-2" 6'-9"
C O N T I N U O U S S PA N S
The safe spans indicated for heavy duty gratings and bridge decking in the preceding load tables are based upon simple span calculations. When the
grating is properly anchored and the span is continuous over 3 or more supports, the above spans may be increased by a multiple of 1.20.

EMBED FRAMES
“E-Z” POUR FRAME
E mbed Frames cast into concrete floors and substructures serve a multitude of purposes that extend the
effective life of your completed construction project. Frames form a permanent shield for concrete lead
edges and perimeters which are subject to cracking and chipping when left unprotected. During construction,
these rigid 1/4" (minimum) thick steel frames expedite forming and provide a welded structure that assures
accuracy in the concrete pour. Frames provide a uniform bearing surface for grates or covers, often
eliminating rocking or irregular elevations experienced with covers installed on poured concrete. In
TYPE “L”
specifying Indiana Gratings Embed Frames, you are specifying durability, accuracy and economy. (Nail holes TRENCH
are optional and may further expedite installation. If desired, size and location should be specified.) FRAME
E-Z POUR FRAMES TYPE L FRAME

Indiana Gratings E-Z Pour frames All frames are available in four sided, one
"S" Clear Opening
"S" Clear Opening

(specify dimension)
(specify dimension)
are designed to expedite forming piece welded construction units and can
Grating Span
Grating Span
and provide superior concrete "W" Clear Opening accommodate any clear opening. Simply "W" Clear Opening
embedment. Assembled with (specify dimension) specify the frame type from the sections (specify dimension)
continuous anchors on the non- below, the desired clear opening, and the
bearing sides, E-Z Pour frames desired grating or cover thickness.
install quickly and provide superior
drainage.
FRAME SECTIONS
Dimensions indicated
on table below.
TYPE "E-Z" TYPE "L" TYPE "Z" TYPE "M" TYPE "X" TYPE "P"
ANCHORS FINISHES
All frames are provided with 3/8" X 4" headed Carbon steel frames are manufactured with either of three standard
concrete stud anchors welded within 6 inches of Anchor finishes, bare steel (no finish), prime painted, or hot dip galvanized after
each corner and at a maximum of 24 inches on fabrication. Aluminum frames are provided mill finish and can be specified
center. Alternative anchors sizes and spacings with bituminous coating on surfaces to be cast in concrete. Stainless steel
may be designated by the specifying authority. frames are supplied mill finish and can be specified as abrasive blasted after
fabrication to provide a uniform matte finish.
T R E N C H G R AT I N G & I N L E T G R AT E S
The combination of Indiana Gratings gratings and
embed frames provides the specifier with a wide range
of alternatives for drainage applications.
TRENCH GRATING SYSTEMS
T rench Grating Systems by Indiana Gratings allow the specifier to combine any of the gratings illustrated above
with any of the embed frames profiled on page 14. Gratings are available in Standard series for pedestrian loads
or Heavy Duty series for vehicular traffic. Unlike cast iron or molded trench products, this flexible system allows the
user to specify the exact clear opening ("S" dimension) desired. Because Indiana Gratings offers five distinct embed
frame profiles, the user can select a frame to meet the exact edge condition desired. Bolting the grates to the frames is
optional and must be specified. All gratings are provided with plain surface (the optional serrated surface is also
d
available when specified) and open ends are trench banded to maximize drain capacity. Unless otherwise noted, all
trench frames and grating are hot dip galvanized after fabrication in accordance with ASTM Specification A-123.
"S" CLEAR SPAN
17
TRENCH GRATING & INLET SETS
S TA N D A R D D U T Y
I ndiana Gratings Trench Grating Systems and
Inlet Sets combine our most popular gratings
and embed frames to provide economic, modular
components for construction projects. These
products are offered in our Sta ndard series,
designed to serve pedestrian loads, and our Heavy
Duty series, designed to service the most
demanding vehicular traffic. Each series is offered
TYPE "S" TYPE "SA" TYPE "SP"
with multiple bar spacings (shown below) to Designed to support pedestrian loads, type Standard Duty type "SA" grates are Type "SP" grates also comply with ADA spacing
address the specific needs of your application. "S" grates are manufactured from welded designed to conform with strict ADA requirements. Additionally, the 1/4" maximum
grating with durable 3/16" (min.) thick spacing requirements. Open area of 66% clear opening between the bars make these
bearing bars. Open area of nearly 80% allows allows for drainage and ventilation while grates desirable in areas subject to pedestrian
for fast clearing of moisture and run-off. maintaining a safe traffic surface. traffic where high heeled shoes are common.
B O LT E D G R AT E S
Indiana Gratings Trench Systems and Inlet HEAVY DUTY
Sets are manufactured as component products
with the grates easily removed for clearing
debris from the trenches or inlets. Often security
concerns or traffic conditions dictate that the
grates must be bolted to the framing. When this
option is specified, weld lugs or counter-sunk
lands (below) are installed on the grates and the
bolt is installed below the traffic surface of the TYPE "H" TYPE "HA" TYPE "HP"
grating. For high security applications, bolted Type "H" grates are manufactured from Heavy duty type "HA" grates are similar to Heavy duty type "HP" grates are similar to
stout, 3/8" (min.) thick bearing bars. type "SA" above with the exception that type "SP" above with the exception that
grates with tamper-resistant fasteners may be Designed to serve the most rigorous truck these grates are additionally designed to these grates are additionally designed to
further specified. and forklift loads. With nearly 70% open support forklift and vehicular loads. support forklift and vehicular loads.
area, these products are ideal for parking
lot and highway drain applications.
BOLTING BOLTED TAMPER CLOSE

OPTIONS: GRATES RESISTANT MESH
BOLT BOLTING
INLET GRATES & FRAMES
C omplimenting our trench grating systems, Indiana Gratings Inlet Gratings and Frames provide the specifier with flexible
solutions to inlet drain requirements. Equal to our trench grating products, Standard Duty pedestrian grates and
Heavy Duty vehicular grates are illustrated on page 15 of this catalog. Inlets may be specified to any clear opening
by simply indicating the desired "W" (width) and "S" (span) dimensions illustrated on page 14. Similar to
our trench grating systems, any of the five embed frame profiles may be specified to meet the exact
needs of your application. Bolting the grates to the frames is optional and must be specified.
While all gratings are manufactured with plain walking surface, the optional serrated surface
may be specified. The ends of all inlet gratings are trench banded to enhance durability and allow
for maximum drainage. Unless otherwise specified, all inlet grates and frames are hot dip galvanized
in accordance with ASTM specification A-123.

FASTENERS & BANDING
FA S T E N E R S B A N D I N G W E L D S TA N D A R D S
All grating must be firmly fastened in place. Welding panels to the supporting
structure provides a superior, permanent installation. Gratings subject to removal can be
fastened with Weld Lugs which are shop welded between the bearing bars, or anchored
with Saddle Clips. These fasteners, which are provided upon request, are punched with 5" +
– O.C. for Trim Band
1 3
5/16" holes to receive 1/4" bolts or screws (bolts or screws supplied by others). In areas 8 " 4 " and Trench Grating
where welding or drilling is not permitted, "G" Clips can provide the fastening solution.
These clips install on the top surface of the grating and create a friction connection with
the flange supporting the panel. The narrow spacing of close mesh gratings allows for
countersinking of the bearing bars and fastening with flat head screws. LOAD BANDING (Optional)
MINIMUM WELD PATTERN Bearing

Bars
One weld in middle of panel at each intermediate support.
3 3
"
16 4 "
+
–
SADDLE CLIP
+
–
3 3
"
16 " "
4
Welds at ends of bearing bar
appoximately 6 inches from
each side of panel. WELD LUG
COUNTER-SUNK LAND
"G" CLIP WITH FLAT HEAD SCREW
PANEL WIDTHS & LAYOUT

PA N E L W I D T H S
Grating panels are manufactured in nominal 24" and 36" standard widths. When considering alternative widths, consult the table below to select widths that will
maintain consistent out to out spacing of the bearing bars. Widths specified which deviate from the table below can be fabricated utilizing side banding. In so doing,
the outside bearing bar spacing on one side of the finished panel will deviate from the spacing throughout the rest of the panel.
PA N E L W I D T H C H A R T
NUMBER OF BEARING BAR SPACING NUMBER OF BEARING BAR SPACING
BEARING BARS 1-3/16" O.C. 15/16" O.C. 11/16" O.C. 7/16" O.C. BEARING BARS 1-3/16" O.C. 15/16" O.C. 11/16" O.C. 7/16" O.C.
6 6-1/8" 4-7/8" 3-5/8" 2-3/8" 26 29-7/8" 23-5/8" 17-3/8" 11-1/8"
7 7-5/16" 5-13/16" 4-5/16" 2-13/16" 27 31-1/16" 24-9/16" 18-1/16" 11-9/16"
8 8-1/2" 6-3/4" 5" 3-1/4" 28 32-1/4" 25-1/2" 18-3/4" 12"
9 9-11/16" 7-11/16" 5-11/16" 3-11/16" 29 33-7/16" 26-7/16" 19-7/16" 12-7/16"
10 10-7/8" 8-5/8" 6-3/8" 4-1/8" 30 34-5/8" 27-3/8" 20-1/8" 12-7/8"
11 12-1/16" 9-9/16" 7-1/16" 4-9/16" 31 35-13/16" 28-5/16" 20-13/16" 13-5/16"
12 13-1/4" 10-1/2" 7-3/4" 5" 32 29-1/4" 21-1/2" 13-3/4"
13 14-7/16" 11-7/16" 8-7/16" 5-7/16" 33 30-3/16" 22-3/16" 14-3/16"
14 15-5/8" 12-3/8" 9-1/8" 5-7/8" 34 SHADED 31-1/8" 22-7/8" 14-5/8"
15 16-13/16" 13-5/16" 9-13/16" 6-5/16" 35 32-1/16" 23-9/16" 15-1/16"
16 18" 14-1/4" 10-1/2" 6-3/4" 36 AREAS 33" 24-1/4" 15-1/2"
17 19-3/16" 15-3/16" 11-3/16" 7-3/16" 37 33-15/16" 24-15/16" 15-15/16"
18 20-3/8" 16-1/8" 11-7/8" 7-5/8" 38 INDICATE 34-7/8" 25-5/8" 16-3/8"
19 21-9/16" 17-1/16" 12-9/16" 8-1/16" 39 STOCK 35-13/16" 26-5/16" 16-13/16"
20 22-3/4" 18" 13-1/4" 8-1/2" 40 27" 17-1/4"
21 23-15/16" 18-15/16" 13-15/16" 8-15/16" 41 PANEL 27-11/16" 17-11/16"
22 25-1/8" 19-7/8" 14-5/8" 9-3/8" 42 28-3/8" 18-1/8"
23 26-5/16" 20-13/16" 15-5/16" 9-13/16" 53 WIDTHS 35-15/16" 18-9/16"
24 27-1/2" 21-3/4" 16" 10-1/4" 83 36-1/16"
25 28-11/16 22-11/16" 16-11/16" 10-5/8"
WIDTHS SHOWN ARE FOR 3/16" THICK BEARING BARS. FOR 1/8" BEARING BARS, DEDUCT 1/16" FROM THE VALUES INDICATED.
PA N E L L AY O U T T Y P I C A L PA N E L L AY O U T S
As stated above, stock grating panels are manufactured in 24" and 36"
nominal widths. Stock lengths (span) are 24'-0" for all sizes with most popular 8'-0"
8'-0"
bearing bar sizes also available in 20'-0" lengths. These sizes allow for efficient 3513 163" 3513 16 " 2315 16"
3 1
layout and waste minimization when they are fabricated to your exact 16 " 4 "
2315 16"
specification. Bearing Bar Span

Bearing Bar
"
Unlike many competing products, individual grating panels do not require

Supports
8
4'-0"
4'-0"
Span
supports on all four sides of each cut piece. Bar grating panels only require
2315 16"
support perpendicular to the bearing bar span. There is no need to place supports
parallel to the bearing bars where adjacent panels are installed in succession.
The following layouts illustrate proper layout and support of a simple bar Support Mid-Support (if req'd) Support
grating platform.
19
MANUFACTURING & INSTALLATION
MANUFACTURING TOLERANCES
OVERALL DIMENSIONS AND SQUARENESS CROSS BAR ALIGNMENT AND SPACING CROSS BAR LOCATION
Width (W) Overall + 1 3
– 4 " "
16
1
+ 1
– 32" 1
8 " O.C. 8 " 1
"
16
Cross Bars Bearing Bars
"
4
1
–+ ALL DIMENSIONS GIVEN ARE MAXIMUM
=D
+ 1
– 4 " C-C End Cross Bars in
PERMISSIBLE
D'
D
5'-0" Length
1
" 4
TRANSVERSE BOW
Length +
–
LONGITUDINAL BOW
D and D' are
overall diagonal
dimensions.
1
W and W' are 8 " Per Foot of Width
1/200 of Length Bearing Bars Bearing Bars
overall lengths of
cross bars at
opposite ends of
W' = W +
–
1
4 " panels.
1
8 " Per Foot of Width (10.5mm Per Meter of Width)
BEARING BAR LEAN STAIR TREAD CARRIER PLATE LEAN STAIR TREAD TOLERANCE
1
"
Width +
– 4
12"
12
1
2 "
11 4 "
1
Length + 0" – 8 "
INSTALLATION CLEARANCES
HANDRAIL POSTS & TOE PLATE BEAM & CHANNEL SUPPORT PANEL CLEARANCES
1 1 Span (Direction of Bearing Bars) + 1
– 4"
4 " 4 "
1
4 " 1
4 " Panel Lengths Panel Lengths
1
4
" Clearnace Between Sides of Panels
Panel Width
Panel Width
ANGLE SUPPORT IN CONCRETE CIRCULAR CUTS 1

2 " 3
Thickness of Seat 1
8 " Max.
1 2 "
Angle or 1/4" Min. 2 "
O.D. or I.D. of Vessel
CUT-OUTS MADE TO CLOSEST ADJACENT

BEARING BARS
Specified Cut-Out Width
1
8 " 1 @ 12
Actual Cut-Out Width
GENERAL RECOMMENDATIONS FOR GRATING INSTALLATION

• Gratings must be installed with cross bars on top side.
• Notching of bearing bars at supports to maintain proper elevation is generally not recommended. If notching is required for installation, manufacturer should be consulted.
• Metal should always be used for all grating supports.
• A minimum of 1" bearing shall be provided for Aluminum and Light Duty Steel Grating. For Heavy Duty Steel Grating, 1" minimum bearing shall be provided for bearing
bar depths up to 2-1/4", and 2" minimum bearing shall be provided for depths of 2-1/2" and over. This bearing surface does not include the support angle fillet radius
noted above.

GRIP STRUT¤ SAFETY GRATING
E very year industrial accidents – falls, tripping over

debris, slipping on wet or greasy surfaces – cost
millions of dollars in lost manhours and production. By
ECONOMICAL TO
INSTALL, USE – In
addition to low
reducing accidents, insurance costs can frequently be material cost and
decreased. GRIP STRUT® Safety Grating helps reduce nominal erection
accident rates by providing a safer walking-working cost, GRIP STRUT®
surface than other grating products. Its serrated surface Safety Grating
gives maximum slip protection and performance under also saves with its
practically all conditions and in every direction. long-lasting, rust-
The serrated surface is designed in an open diamond resisting materials
pattern. This allows drainage of fluids, mud, chips and other and finishes.
accident-causing debris. Standard mill-
In addition to safety, galvanized finish
the resilient surface of resists corrosion to
GRIP STRUT® Safety provide lasting surfaces.
Grating cushions the High-strength aluminum and
impact of footfalls thereby Types 304 and 316L stainless steel
lessening worker fatigue are available to provide maximum
and increasing efficiency. corrosion resistance. Black unpainted steel
GRIP STRUT® Safety is available for installations requiring hot
Grating is your best safety dipped galvanized finish after fabrication. These
buy. These cost-cutting lightweight but brawny panels permit substantial
and production- reduction in structural steel requirements. The open
improving advantages design is self-cleaning and virtually maintenance free. STANDARD GRIP STRUT GRATING PLANKS – Available in
spell out why: VERSATILE IN APPLICATION – A variety of Standard widths materials and sizes to meet most load/span requirements.
SAFER, SERRATED SURFACE – Grips soles securely – in all and channel heights combine with numerous Non- May be used as is or banded, cut, welded, or punched to
directions – in practically every place. These non-slip GRIP Standard shapes and sizes to meet almost any requirement suit requirements.
STRUT® Grating surfaces are ideal for inside or outside of strength, size, durability, weight, finish, appearance and
locations where mud, ice, snow, oil and detergents can application. GRIP STRUT® Safety Grating combines safety
create hazardous walking conditions. Openings are small and durability with ease of fabrication and versatility. One
enough to catch most falling tools and other dangerous piece construction minimizes the need for
objects. plant fabrication. Special shapes and
MAINTENANCE-FREE OPEN DESIGN – Permits quick drainage forming can be accomplished to suit 5/16"
5/8"
of fluids, chips, grease and mud. Any ice accumulation unusual requirements.
shears easily under normal foot pressure. Open design It’s simple and economical to apply
Channel Depth
90 +
O
– 2-1/2"
allows convenient access for cleaning. It is easily finish coatings because all surfaces are
cleaned with brush, liquid or air spray to minimize accessible to brush or spray. GRIP STRUT®
overall maintenance. Grating may be hot dipped galvanized after
HIGH LOAD CAPACITY, LONG LIFE – High strength-to-weight fabrication, anodized, plated,
performance is achieved through depth of section and plastic-coated or otherwise finished
structural design. Bridged struts with integral side to suit job requirements.
channels form a plank that can support loads with SERRATED GRIP STRUT GRATING – Standard 7/8" +
– 1/8"
minimum transverse and longitudinal deflection. This Serrated Surface offers excellent slip
sturdy construction provides the advantages of heavy resistance wherever maximum safety
load-carrying capacity with minimal deflection; rugged underfoot is essential. Material meets anti-
1-1/8"
durability with longer-lasting performance. slip values set forth in Federal Specification
9/16"
FAST INSTALLATION – Light, easy-to-handle planks make RR-G-1602A.
11/16"
installation simple and quick. They can be handled by NON-SERRATED GRIP STRUT GRATING – For
one man. Most sections are rapidly bolted, clamped or all-purpose use where a high degree of slip
welded into place, easily field-cut at virtually any angle, or resistance is required plus a smoother Eq. Eq.
fabricated to adapt to field conditions. Several attachment texture and design. Product is non-stock 1-7/8" 7/16" 1-7/8" 7/16" 1-7/8"
devices permit fastening to most existing surfaces and subject to extended lead time. Width
allowing for fast installation or disassembly.
PROOF OF PERFORMANCE
Tested by an independent laboratory for slip resistance tested 10% to 180% more slip-resistant than similar slip-resistance established by Federal Specification RR-G-
according to standards and methods established by materials, depending on shoe materials and 1602D. The values indicated are an average of values
Federal Specification RR-G-1602D, GRIP STRUT® Safety surface conditions. obtained for five sole materials (leather, boot rubber, shoe
Grating proved its superiority by exceeding all Fewer accidents, with resultant lower insurance costs rubber, Neolite and Hypalon) tested in three directions
requirements of this specification. and reduced workman’s compensation losses, should be (longitudinally, transversely and diagonally) for the
The standards were exacting – five shoe sole materials the logical reason for specifying GRIP STRUT® Safety surface conditions noted. Values are in pounds of force
tested in three directions under five conditions: dry, Grating for walking-working surfaces and stair treads. necessary to move a 175 lb. load one inch across the
greasy, muddy, soapy and icy. GRIP STRUT® Safety Grating Values determined in accordance with standards for surface of grating.
T E S T- P R O V E N S L I P R E S I S TA N C E
150 A FEDERAL
140 SPECIFICATION FOR
STEEL
130
POUNDS OF FORCE
120 B 12-GAUGE STEEL

110 GRIP STRUT GRATING
100 C 14-GAUGE STEEL
90 GRIP STRUT GRATING
80
D FEDERAL
70 SPECIFICATION FOR
60 ALUMINUM
50
A B C D E A B C D E A B C D E A B C D E A B C D E E .080 ALUMINUM
GRIP STRUT GRATING
DRY MUD GREASE SOAP ICE
21
GRIP STRUT¤ SAFETY GRATING
M AT E R I A L S
• PRE-GALVANIZED STEEL ASTM A-924-G90
14 & 12 GAUGE
• HRPO UNCOATED STEEL ASTM A-569

STOCK LENGTHS – 14 & 12 GAUGE
10'-0" & 12'-0"
(Custom lengths available • 5052-H32 ALUMINUM 12 GAUGE (.080)
OR 10 GAUGE (.100) ASTM B-209
up to 24'-0")
• 304 OR 316L STAINLESS STEEL 16 GAUGE
HOW TO SPECIFY GRIP STRUT

S A F E T Y G R AT I N G
INDICATES PLANK WIDTH IN INDICATES CHANNEL DEPTH
d CHANNEL DEPTHS – NUMBER OF DIAMONDS 15 1-1/2"
2, 3, 4, 5, 8, or 10.20 2"
14 ga. 1-1/2", 2", 25 2-1/2"
& 2-1/2" 30 3"
BLE –
AVAILA
WIDTHS 12 ga. 1-1/2", 2",
2-Diamond – 4-3/4" Wide

2-1/2", & 3" 52012
3-Diamond – 7" Wide
INDICATES MATERIAL GAUGE INDICATES TYPE OF MATERIAL
4-Diamond – 9-1/2" Wide 14 or 12 steel, 12 or 10 Blank for pre-galvanized steel.
5-Diamond –11-3/4" W ide aluminum, or 16 ga. "B" for HRPO steel.
stainless steel. "A" for aluminum
8-Diamond – 18-3/4" Wide "S" for stainless steel
10-Diamond –24" W ide OTHER EXAMPLES:
31514-B = 7" WIDE, 1-1/2" DEEP, 14 GAUGE HRPO STEEL
52012-A = 11-3/4" WIDE, 2" DEEP, .080 THICK ALUMINUM
H O W T O R E A D L O A D TA B L E S 42016-S = 9-1/2" WIDE, 2" DEEP, 16 GAUGE STAINLESS STEEL
GRIP STRUT® Safety Grating, determine load, clear span and grating is loaded with either a uniform load or a mid-width ALLOWABLE UNIFORM LOAD (U) – Values indicated in the rows
deflection requirements. Having this information, select from load concentrated load, and the struts (grating surface) deflect relative adjacent to “U” are the lowest of the (1) maximum allowable
table the appropriate plank to meet job requirements. to the side channels. To determine the allowable strut loads, uniform loads considering channel flexure and (2) maximum
Example: Clear span of 4’-O”, concentrated load samples of each grating material and thickness were tested for each grating surface flexure.
requirement of 300 Ib. at 0.25” max. deflection. Select from plank width. (See Fig. 1, below) The data resulting from these tests DEFLECTION CORRESPONDING TO “U” – Deflection values are
the tables following: was used to prepare strut loading tables, which give allowable indicated below the uniform loads and are the mid-span side
For eight-diamond 18-3/4” wide, 2-1/2” channel, 12-ga. steel loads and deflections considering strut flexure only. These channel deflections for the planks carrying the allowable uniform
which carries a load of 416 Ib. at a 0.18” deflection. This is one size allowable strut loads, along with the results of additional tests loads (Fig. 3).
to do the job. Other sizes will carry more load if necessary. For performed on 8- and 10-Diamond grating, have been incorporated ALLOWABLE CONCENTRATED LOAD (C) – Values indicated in the rows
more economical selection, choose the greatest width that will in the load tables on page 22. labeled “C” are the lowest of the (1) maximum allowable
support the load consistent with job requirements and choose The second aspect of GRIP STRUT Grating strength is channel concentrated load considering channel flexure (Fig. 2), with both
deeper channels rather than heavier steel gauges. flexure. This occurs when the channels at mid-span of the plank channels effective, and (2) the maximum allowable strut load (Cs)
GRIP STRUT® Safety Grating will generally carry the same deflect relative to support points. To verify the performance of the for a 1-ft. long sample (Fig. 1).
concentrated load, tabulated in Ib. at mid-span, for a given span, side channels, samples were loaded with concentrated and uniform DEFLECTION CORRESPONDING TO “C” – Deflection values indicated
material gauge and channel height, regardless of width. (See “How loads at different spans (See Figs. 2 and 3). To approximate the below “C” values in the tables are the mid-span, side channel
load tables were prepared” described below.) The uniform load most severe condition, there were no attachments between the deflections produced when the allowable concentrated load is
tables are tabulated in lb. sq. ft., which accounts for the difference channels and the supports. In cases where spans are shorter, placed at mid-span.
in load capacity shown for various widths. Deflection is in inches. channels deeper and planks wider, strut flexure becomes If grating surface deflection should be considered when
HOW LOAD TABLES WERE PREPARED – The values shown in the more critical. selecting a product to meet a particular specification, then the
following tables are based on actual load tests conducted by an 3-, 4- AND 5-DIAMOND ALLOWABLE LOAD AND DEFLECTION TABLES – deflection of the mid-width of the grating, relative to the side
independent laboratory. The tables have been prepared in Since 2-through 5-Diamond planks are relatively narrow (less than channels, can be calculated using both the data in the Strut
accordance with the provisions of the AISI Specification for the 1 ft. wide), it can be assumed that both side channels effectively Loading Tables and the Load Deflection Conversion formula below.
Design of Cold-Formed Steel Structural Members, 1968 edition. To support the concentrated load and that the grating surface Load data based on yield strength of 33,000 psi for steel,
ensure the safety of the tabulated loads, two aspects of GRIP deflection is negligible. Based upon these assumptions, values in 23,000 psi for aluminum, 35,000 psi for Type 304 stainless steel,
STRUT® Grating strength must be considered. the following load tables for 2- through 5-Diamond have been and 30,000 psi for Type 316L stainless steel.
The first consideration is transverse bending in the grating determined.
surface, which is referred to as strut flexure. This occurs when the
LOAD/DEFLECTION
CONVERSION FORMULAS EXAMPLE A EXAMPLE B
In the elastic range, deflection is proportional to the What deflection will a 300 Ib. concentrated load produce If a plank (catalog number 103012) is spanning 6’0”,
applied load for both uniform and concentrated loads. This on a plank (catalog number 103012) spanning 5’-0”? what concentrated load will produce a 1/4” deflection?
relationship can be used to determine the deflection that See page 22 for item 103012 at a span = 5’-O”C = 480 Ib. D = 0.26 See page 22 for item 103012 at a span of 6’-0”
any load which is less than the allowable load will produce. D @ 300 Ib. = 0.26” x 300 Ib. = 0.16” C = 400 Ib. D = 0.26”
480 Ib. C @ 1/ 4” = 400 Ib. x 0.25” = 385 Ib.
Load 0.26” Load
U – UNIFORM Load
LOAD (LB./FT.2)
Cs – CONCENTRATED STRUT
LOAD (LB./FT.)
C – CONCENTRATED
LOAD (LB.)
D
D
D – DEFLECTION (IN.) 12" D
Fig. 1 Strut Load Fig. 2 Concentrated Load Fig. 3 Uniform Load

GRIP STRUT® SAFETY GRATING LOAD TABLES
ALLOWABLE LOADS AND DEFLECTIONS: U – UNIFORM LOAD (LB./FT.), C – CONCENTRATED LOAD (LB.), Cs – ALLOWABLE CONCENTRATED LOAD PER FOOT OF LENGTH AT MID-WIDTH (LB./FT.), D – DEFLECTION (IN.). SPANS
TO THE LEFT OF HEAVY LINE PRODUCE A DEFLECTION OF 1/4” OR LESS UNDER A UNIFORM LOAD OF 100 LBS. PER SQUARE FOOT.
2-Diamond Plank Load Table – 4-3/4” Width 3-Diamond Plank Load Table – 7” Width
P R O D U C T S E L E C T I O N / D E S I G N TA B L E S P R O D U C T S E L E C T I O N / D E S I G N TA B L E S
WEIGH SPAN WEIGH SPAN
MATERIAL CHANNE T LB./ CATALOG MATERIAL CHANNE T LB./ CATALOG
GAUGE L DEPTH LIN. FT. NUMBER 2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 7'-6" 8'-0" GAUGE L DEPTH LIN. FT. NUMBER 2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 7'-6" 8'-0"
U 1324 849 591 435 334 265 215 179 151 U 899 577 402 269 227 180 147 122 103
1-1/2 2.3 21514 D .06 .10 .14 .20 .26 .32 .40 .49 .58 1-1/2 3.0 31514 D .06 .10 .14 .20 .26 .33 .40 .49 .59
C 524 420 351 301 265 236 213 195 179 C 524 421 351 302 265 237 214 196 180
D .05 .08 .11 .16 .20 .26 .32 .39 .47 D .05 .08 .11 .16 .21 .26 .32 .39 .47
U 2198 1409 980 721 553 438 356 295 248 212 184 161 142 U 1492 957 665 490 376 298 242 201 169 145 125 110 97
STEEL 2 2.6 22014 D .06 .09 .13 .17 .23 .29 .35 .43 .51 .60 .70 .81 .92 STEEL 2 3.2 32014 D .06 .09 .13 .17 .23 .29 .35 .43 .51 .61 .71 .81 .93
14 GA. C 870 697 582 499 438 390 352 321 295 273 255 239 225 14 GA. C 871 697 582 500 439 391 353 322 296 275 256 240 226
D .04 .07 .10 .14 .18 .23 .28 .34 .41 .48 .56 .65 .74 D .04 .07 .10 .14 .18 .23 .28 .34 .41 .48 .56 .65 .74
U 2522 1616 1124 827 634 502 408 338 285 244 211 184 163 U 1712 1097 763 562 431 342 277 230 194 166 144 126 111
2-1/2 2.8 22514 D .04 .06 .08 .11 .14 .18 .23 .27 .33 .38 .45 .51 .59 2-1/2 3.5 32514 D .04 .06 .08 .11 .14 .18 .23 .27 .33 .39 .45 .52 .59
C 998 800 667 573 502 447 404 368 338 313 292 273 257 C 999 800 668 574 503 448 405 369 340 315 293 275 259
D .03 .04 .06 .09 .11 .15 .18 .22 .26 .31 .36 .41 .47 D .03 .04 .06 .09 .11 .15 .18 .22 .26 .31 .36 .41 .47
U 1751 1123 782 576 443 351 286 237 200 172 149 131 116 U 1189 763 532 392 301 239 195 162 137 118 102 90 79
1-1/2 3.2 21512 D .07 .11 .15 .21 .27 .35 .43 .52 .62 .74 .86 .99 1.14 1-1/2 4.1 31512 D .07 .11 .15 .21 .27 .35 .43 .52 .63 .74 .87 1.00 1.15
C 693 556 464 399 350 313 283 258 238 221 206 194 183 C 694 556 465 400 352 314 284 260 240 223 208 196 185
D .05 .08 .12 .17 .22 .28 .34 .42 .50 .59 .69 .79 .91 D .05 .08 .12 .17 .22 .28 .34 .42 .50 .59 .69 .80 .92
U 2792 1790 1245 917 703 557 453 375 317 271 235 205 181 U 1896 1216 846 623 478 379 308 256 216 185 160 140 124
STEEL 2 3.6 22012 D .05 .08 .11 .16 .20 .26 .32 .39 .46 .55 .64 .73 .84 2 4.5 32012 D .05 .08 .11 .16 .20 .26 .32 .39 .47 .55 .64 .74 .85
12 GA. C 1105 886 739 635 557 496 448 409 376 348 325 305 287 C 1106 886 740 636 558 498 450 410 378 350 327 307 289
D .04 .06 .09 .12 .16 .21 .26 .31 .37 .44 .51 .59 .67 STEEL D .04 .06 .09 .12 .16 .21 .26 .31 .37 .44 .51 .59 .68
U 4179 2676 1860 1368 1049 830 673 557 469 400 346 302 266 12 GA. U 2836 1817 1263 929 712 564 457 379 319 272 235 206 181
2-1/2 4.0 22512 D .04 .06 .09 .13 .17 .21 .26 .32 .38 .44 .51 .59 .67 2-1/2 4.9 32512 D .04 .06 .09 .13 .17 .21 .26 .32 .38 .44 .52 .59 .68
C 1654 1324 1104 948 830 739 666 606 557 515 479 448 421 C 1654 1325 1105 948 831 740 667 608 558 516 481 450 423
D .03 .05 .07 .10 .13 .17 .21 .25 .30 .35 .41 .47 .54 D .03 .05 .07 .10 .13 .17 .21 .25 .30 .35 .41 .47 .54
ALUM. U 1463 937 650 478 366 289 234 194 162 138 119 U 3587 2298 1597 1174 900 712 578 478 403 344 297 259 228
12 GA. 2 .92 22012-A D .08 .13 .18 .25 .33 .42 .52 .63 .74 .87 1.02 3 5.2 33012 D .04 .06 .08 .11 .14 .18 .22 .27 .32 .38 .44 .51 .58
C 579 463 386 331 290 257 232 211 192 177 165 C 1868 1675 1397 1199 1050 935 843 767 705 652 606 567 533
.080” D .06 .10 .15 .20 .27 .34 .42 .51 .59 .69 .80 D .03 .04 .06 .09 .11 .14 .18 .22 .26 .30 .35 .41 .46
ALUM. U 2049 1312 911 669 512 405 328 271 228 194 167 146 128 ALUM. U 993 636 441 324 248 196 159 131 110 93
10 GA. 2 1.20 22010-A D .09 .14 .20 .28 .37 .46 .58 .70 .83 .98 1.13 1.30 1.48 12 GA. 2 1.15 32012-A D .08 .13 .18 .25 .33 .42 .52 .63 .74 .86
C 811 649 541 464 406 361 325 295 270 250 232 216 203 .080” C 579 463 386 331 290 257 232 211 192 177
.100” D .07 .11 .16 .22 .29 .37 .46 .56 .66 .78 .90 1.04 1.18 D .06 .10 .15 .20 .27 .34 .42 .51 .59 .69
ALUM. U 1391 890 618 454 348 275 223 184 155 132 114 99 87
2-DIAMOND STRUT LOADING 10 GA. 2 1.46 32010-A D .09 .14 .20 .28 .37 .46 .58 .70 .83 .98 1.13 1.30 1.48
C 811 649 541 464 406 361 325 295 270 250 232 216 203
.100” D .07 .11 .16 .22 .29 .37 .46 .56 .66 .78 .90 1.04 1.18
MATERIAL TYPE DEFLECTION MATERIAL TYPE DEFLECTION
GAUGE LOADING LOAD GAUGE LOADING LOAD IN.
IN.
STEEL U 6268 .10 ALUM. U 4677 .12
3-DIAMOND STRUT LOADING
14 GA. Cs 1240 .08 12 GA. .080” Cs 925 .10 MATERIAL TYPE DEFLECTION MATERIAL TYPE DEFLECTION
GAUGE LOADING LOAD IN. GAUGE LOADING LOAD IN.
STEEL U 8619 .10 ALUM. U 5847 .12
12 GA. Cs 1705 .08 10 GA. .100” Cs 1157 .10 STEEL U 3535 .11 ALUM. U 2901 .15
14 GA. Cs 1031 .09 12 GA. .080” Cs 846 .12
STEEL U 6405 .11 ALUM. U 4488 .16
12 GA. Cs 1868 .09 10 GA. .100” Cs 1309 .13
4-Diamond Plank Load Table – 9-1/2” Width 5-Diamond Plank Load Table – 11-3/4” Width
MATERIAL CHANNE WEIGH CATALOG SPAN MATERIAL CHANNE WEIGH CATALOG SPAN
T LB./ T LB./
U 663 426 296 219 168 134 109 90 77 U 536 344 240 177 136 108 88 74 62
1-1/2 3.6 41514 D .06 .10 .14 .20 .26 .33 .41 .50 .59 1-1/2 4.2 51514 D .06 .10 .14 .20 .26 .33 .41 .50 .60
C 525 421 352 303 266 238 215 197 182 C 525 422 353 304 267 239 216 198 183
D .05 .08 .11 .16 .21 .26 .33 .40 .47 D .05 .08 .12 .16 .21 .26 .33 .40 .48
U 1100 705 491 362 278 220 179 148 125 107 93 81 72 U 890 571 397 293 225 178 145 120 102 87 76 66 59
STEEL 2 3.8 42014 D .06 .09 .13 .17 .23 .29 .36 .43 .52 .61 .71 .82 .94 STEEL 2 4.4 52014 D .06 .09 .13 .17 .23 .29 .36 .43 .52 .61 .71 .83 .95
14 GA. C 730 698 583 501 440 392 354 323 298 276 258 242 228 14 GA. C 707 699 584 502 440 393 355 324 299 277 259 243 230
D .04 .07 .10 .14 .18 .23 .28 .35 .41 .49 .57 .66 .75 D .04 .07 .10 .14 .18 .23 .29 .35 .42 .49 .57 .66 .76
U 1262 809 563 415 318 252 205 170 144 123 106 93 82 U 1021 655 456 336 258 204 166 138 116 100 86 76 67
2-1/2 4.1 42514 D .04 .06 .08 .11 .14 .18 .23 .28 .33 .39 .45 .52 .60 2-1/2 4.7 52514 D .04 .06 .08 .11 .14 .18 .23 .28 .33 .39 .45 .52 .60
C 730 730 669 574 504 449 406 370 341 316 295 277 261 C 707 707 669 575 505 450 407 371 342 317 296 278 262
D .02 .04 .06 .09 .12 .15 .18 .22 .26 .31 .36 .42 .48 D .02 .04 .06 .09 .12 .15 .18 .22 .26 .31 .36 .42 .48
U 906 581 405 298 229 182 148 123 104 89 77 67 60 U 710 456 318 235 181 144 117 98 83 71 62 55 49
1-1/2 5.0 41512 D .07 .11 .16 .21 .28 .36 .44 .54 .64 .76 .89 1.02 1.17 1-1/2 5.9 51512 D .07 .11 .15 .21 .28 .35 .44 .53 .64 .76 .89 1.03 1.18
C 718 575 481 413 363 324 292 267 246 228 213 200 189 C 695 558 467 402 354 317 287 263 244 227 213 201 190
D .06 .09 .13 .17 .23 .29 .35 .43 .52 .61 .71 .82 .94 D .05 .08 .12 .17 .22 .28 .35 .43 .51 .60 .71 .82 .95
U 1398 896 624 460 353 280 228 189 160 137 119 104 92 U 1131 725 505 372 286 227 185 154 130 111 97 85 75
2 5.4 42012 D .05 .08 .11 .16 .20 .26 .32 .39 .47 .55 .65 .75 .85 2 6.2 52012 D .05 .08 .11 .16 .20 .26 .32 .39 .47 .56 .65 .75 .86
C 1107 887 741 637 559 499 451 412 380 353 329 309 292 C 1107 888 742 638 561 501 453 414 382 355 332 312 295
STEEL D .04 .06 .09 .12 .16 .21 .26 .31 .37 .44 .52 .60 .68 STEEL D .04 .06 .09 .12 .16 .21 .26 .31 .38 .44 .52 .60 .69
12 GA. U 2090 1339 931 685 525 416 338 280 236 201 174 152 134 12 GA. U 1691 1083 753 554 425 337 273 226 151 141 123 109 87
2-1/2 5.7 42512 D .04 .06 .09 .13 .17 .21 .26 .32 .38 .44 .52 .60 .68 2-1/2 6.6 52512 D .04 .06 .09 .13 .17 .21 .26 .32 .38 .45 .52 .60 .68
C 1400 1325 1106 949 832 741 668 609 559 518 482 452 425 C 1115 1115 1106 950 833 742 669 610 561 519 484 453 426
D .03 .05 .07 .10 .13 .17 .21 .25 .30 .36 .41 .48 .54 D .02 .04 .07 .10 .13 .17 .21 .25 .30 .36 .41 .48 .55
U 2644 1694 1177 866 664 525 426 353 297 254 219 192 169 U 2138 1370 952 701 537 425 345 286 241 206 178 155 137
3 6.1 43012 D .04 .06 .08 .11 .14 .18 .22 .27 .32 .38 .44 .51 .58 3 7.0 53012 D .04 .06 .08 .11 .14 .18 .22 .27 .32 .38 .44 .51 .58
C 1400 1400 1398 1200 1051 936 844 769 706 653 608 569 535 C 1115 1115 1115 1115 1052 937 845 770 707 654 609 570 537
D .02 .04 .06 .09 .11 .15 .18 .22 .26 .31 .35 .41 .47 D .02 .03 .05 .08 .11 .15 .18 .22 .26 .31 .36 .41 .47
ALUM. U 732 468 325 239 183 145 117 97 81 69 ALUM. U 592 379 263 193 148 117 95 78
12 GA. 2 1.37 42012-A D .08 .13 .18 .25 .33 .42 .52 .63 .74 .87 12 GA. 2 1.59 52012-A D .08 .13 .18 .25 .33 .42 .52 .63
.080” C 568 463 386 331 290 257 232 211 192 177 .080” C 466 466 386 331 290 257 232 211
D .06 .10 .15 .20 .27 .34 .42 .51 .59 .69 D .05 .10 .15 .20 .27 .34 .42 .51
ALUM. U 1025 656 455 335 256 202 164 136 114 97 84 73 64 ALUM. U 829 530 368 271 207 164 133 110 92 78 68 59
2 1.74 42010-A D .09 .14 .20 .28 .37 .46 .58 .70 .83 .98 1.13 1.30 1.48 2 2.0 52010-A D .09 .14 .20 .28 .37 .46 .58 .70 .83 .98 1.13 1.30
10 GA. C 811 649 541 464 406 361 325 295 270 250 232 216 203 10 GA. C 714 649 541 464 406 361 325 295 270 250 232 216
.100” D .07 .11 .16 .22 .29 .37 .46 .56 .66 .78 .90 1.04 1.18 .100” D .06 .11 .16 .22 .29 .37 .46 .56 .66 .78 .90 1.04
STAINLESS U 720 462 322 238 183 145 118 98 83 71 59 STAINLESS U 583 374 261 192 148 118 96 80 68 58 48
STEEL 304 3.2 42016-S D .05 .08 .11 .16 .20 .26 .32 .39 .47 .55 .61 STEEL 304 3.7 52016-S D .05 .08 .11 .16 .20 .26 .32 .39 .47 .56 .61
16 GA. C 570 457 382 329 289 258 234 214 197 184 165 16 GA. C 464 458 323 330 290 259 235 215 199 185 165
D .04 .06 .09 .12 .16 .21 .26 .31 .38 .44 .49 D .03 .06 .09 .12 .16 .21 .26 .32 .38 .45 .49
2 2
STAINLESS U 626 400 278 204 156 123 100 82 69 59 51 STAINLESS U 406 324 225 165 126 100 81 66 56 47
STEEL 316L 3.2 42016-SL D .04 .06 .10 .13 .17 .22 .27 .32 .39 .45 .53 STEEL 316L 3.7 52016-SL D .04 .06 .10 .13 .17 .22 .27 .32 .39 .45
16 GA. C 492 397 330 283 248 220 198 180 165 152 141 16 GA. C 398 397 330 283 248 220 198 180 165 152
D .03 .05 .08 .10 .14 .17 .22 .26 .31 .36 .42 D .03 .05 .08 .10 .14 .17 .22 .26 .31 .36
4-DIAMOND STRUT LOADING 5-DIAMOND STRUT LOADING

MATERIAL TYPE DEFLECTION MATERIAL TYPE DEFLECTION MATERIAL TYPE DEFLECTION MATERIAL TYPE DEFLECTION
GAUGE LOADING LOAD GAUGE LOADING LOAD IN. GAUGE LOADING LOAD IN. GAUGE LOADING LOAD IN.
IN.
STEEL U 1844 .15 ALUM. U 2238 .23 STEEL U 1444 .18 ALUM. U 1458 .27
14 GA. Cs 730 .11 10 GA. .100” Cs 886 .15 14 GA. Cs 707 .15 10 GA. .100” Cs 714 .22
STEEL U 3537 .14 STAINLESS STEEL U 1450 .29 STEEL U 2277 .15 STAINLESS STEEL U 947 .38
12 GA. Cs 1400 .11 304 16 GA. Cs 574 .19 12 GA. Cs 1115 .12 304 16 GA. Cs 464 .31
ALUM. U 1435 .19 STAINLESS STEEL U 1243 .20 ALUM. U 951 .24 STAINLESS STEEL U 812 .31
12 GA. .080” Cs 568 .15 316L 16 GA. Cs 492 .16 12 GA. .080” Cs 466 .20 316L 16 GA. Cs 398 .25
23
5/16"
5/8"
8 & 10 DIAMOND LOAD TABLES
Channel Depth
90 +
O
– 2-1/2"
A s width increases, grating strut flexure becomes much

more important. Eight and 10-Diamond products are
wide enough to require a change in the assumptions used to
placed parallel to the side channels at mid-width and at the
longitudinal center.
Results of these tests, included in the 8- and 10-Diamond
maximum deflections the allowable uniform loads would
produce. Maximum deflections will occur at mid-span and
mid-width and will be the sum of side channel and grating
prepare the 2-through 5-Diamond Product Selection/Design Product Design Tables, proved the performance of these surface deflections. (Fig. 3).
Tables. No longer will it be assumed that both side channels materials when a concentrated load is applied at mid-span ALLOWABLE CONCENTRATED LOAD (C) – Values tabulated in the
are equally effective in supporting a concentrated load. In and mid-width. If a concentrated load is to be applied at mid- rows labeled “C”, are the lowest of the (1) maximum
fact, to provide a high level of safety, one side channel will width at the end of a plank, consult the strut loading table. allowable concentrated load considering side channel flexure
be required to carry 100% of a concentrated load. The following values have been tabulated for 8- and 10- (with one side channel supporting the entire load-Fig. 2), and
Also strut deflection for 8- and 10-Diamond products Diamond grating: (2) the maximum allowable strut flexure (Fig. 1).
7/8"The
may be significant. +
– 1/8"
most critical case occurs when a ALLOWABLE UNIFORM LOAD (U) – Values are given in the rows DEFLECTION CORRESPONDING TO “C” – Deflection values are
concentrated load is located at mid-span and mid-width. To labeled “U” and are the lowest of the (1) maximum allowable indicated below the “C” values in the table and are
determine how the struts perform under this loading, 3-ft. uniform loads considering channel flexure, and (2) maximum deflections the allowable concentrated loads will produce at
long samples of each material and thickness were tested. For grating surface flexure. mid-span and at mid-width. The deflection is the sum of side
these tests the side channels were continuously supported DEFLECTION CORRESPONDING TO “U” – Deflection values channel and grating surface deflections.
and loads were applied using a 1-ft. long and 1-in. wide bar appear in the rows labeled “D”, below the “U” values, and are
Load
1-1/8"
3-FT. LONG SAMPLE Load Load

9/16"
10 DIAMONDS WIDE
Fig. 1 Strut Load Fig. 2 Concentrated Load Fig. 3 Uniform Load

D D
Eq. Eq.
ALLOWABLE LOADS AND DEFLECTIONS:1-7/8" U – UNIFORM LOAD7/16" 1-7/8"LOAD (LB.), Cs 7/16"
(LB./FT.), C – CONCENTRATED 1-7/8"LOAD PER FOOT OF LENGTH AT MID-
– ALLOWABLE CONCENTRATED D
WIDTH (LB./FT.), D – DEFLECTION (IN.). SPANS TO THE LEFT OF HEAVY LINE PRODUCE A DEFLECTION OF 1/4” OR LESS UNDER A UNIFORM LOAD OF 100 LBS. PER SQUARE FOOT.
Width
MATERIAL CHANNE WEIGH CATALOG SPAN WEIGH
MATERIAL CHANNE T LB./ CATALOG SPAN
T LB./
U 337 217 151 112 86 69 56 47 U 300 300 228 168 128 102 82 68 57 49 42
1-1/2 6.1 81514 D .33 .27 .26 .29 .33 .38 .45 .55 2 7.4 102014 D .46 .48 .42 .38 .38 .41 .44 .49 .55 .62 .70
C 263 211 178 153 135 121 110 101 C 400 400 343 294 257 229 206 187 172 158 147
D .16 .15 .15 .16 .17 .19 .22 .25 STEEL D .34 .35 .32 .30 .29 .29 .30 .31 .33 .35 .37
U 540 358 250 184 142 113 92 76 65 55 48 42 14 GA. U 300 300 300 264 202 160 130 107 90 77 66 58 51
STEEL 2 6.3 82014 D .48 .37 .34 .32 .34 .38 .43 .50 .58 .66 .77 .87 3 7.9 103014 D .42 .43 .46 .44 .39 .36 .35 .36 .39 .44 .45 .49 .54
14 GA. C 437 349 292 251 220 198 179 164 152 141 132 124 C 400 400 400 400 400 360 324 295 270 249 232 216 203
D .24 .21 .20 .19 .20 .21 .23 .26 .29 .32 .36 .40 D .33 .33 .34 .35 .37 .35 .33 .33 .32 .32 .33 .34 .35
U 540 411 286 211 162 129 105 87 74 63 55 48 43 U 475 416 289 212 162 128 104 86 72 62 53 46
2-1/2 6.6 82514 D .46 .39 .35 .28 .27 .28 .31 .35 .39 .44 .50 .57 .64 2 10.4 102012 D .40 .39 .33 .31 .31 .34 .38 .44 .48 .56 .63 .71
C 450 402 335 287 252 225 205 188 173 161 151 142 134 C 650 520 434 372 325 289 260 237 217 200 186 174
D .24 .22 .20 .19 .19 .19 .20 .21 .23 .24 .27 .29 .32 STEEL D .26 .22 .19 .20 .20 .21 .22 .23 .25 .28 .31 .34
U 446 287 201 148 115 91 75 63 53 46 40 12 GA. U 475 475 475 392 300 237 192 159 133 114 98 85 75
1-1/2 8.5 81512 D .27 .22 .22 .26 .32 .39 .47 .56 .67 .80 .92 3 11.1 103012 D .38 .39 .42 .38 .36 .34 .35 .37 .39 .43 .47 .52 .58
C 359 280 235 203 179 161 146 135 125 117 110 C 900 900 800 686 600 534 480 437 400 369 343 320 300
D .12 .12 .12 .14 .16 .19 .22 .26 .30 .35 .40 D .34 .35 .33 .29 .27 .26 .26 .26 .26 .27 .29 .30 .32
U 710 456 318 235 181 144 117 98 83 71 62 54 48
2 8.9 82012 D .31 .25 .23 .25 .28 .31 .37 .44 .51 .60 .68 .79 .90
C 554 444 371 319 282 253 229 210 194 181 169 160 151
STEEL D .17 .15 .14 .15 .16 .17 .19 .22 .25 .28 .32 .36 .40
12 GA. U 810 680 473 348 267 212 172 143 120 103 89 78 69 8-DIAMOND STRUT LOADING 10-DIAMOND STRUT LOADING
2-1/2 9.2 82512 D .33 .31 .27 .26 .27 .29 .32 .37 .42 .49 .55 .63 .72 MATERIAL TYPE LOADING LOAD DEFLECTION IN. MATERIAL TYPE LOADING LOAD DEFLECTION IN.
C 800 663 553 475 416 371 334 307 282 262 244 229 216 GAUGE GAUGE
D .23 .20 .18 .18 .18 .18 .19 .21 .23 .25 .28 .31 .34
STEEL U 540 .43 STEEL U 300 .49
U 810 810 598 440 337 267 217 180 152 130 112 98 87 14 GA. 14 GA. Cs 300 .40
Cs 422 .35
3 9.6 83012 D .32 .35 .30 .27 .26 .28 .31 .34 .39 .43 .49 .56 .62
STEEL U 810 .30 STEEL U 475 .45
C 800 800 699 600 526 468 422 385 353 327 307 288 271
D .22 .23 .22 .20 .20 .20 .20 .21 .22 .24 .26 .28 .31 12 GA. Cs 633 .24 12 GA. Cs 475 .36
U 457 332 231 170 130 103 83 69 58 49 ALUM. U 308 .48
ALUM. 12 GA. .080” Cs 241 .39
10 GA. 2 2.8 82010-A D .59 .51 .46 .47 .52 .57 .67 .78 .89 1.03
C 406 325 271 232 203 181 163 148 135 125 ALUM. U 457 .51
.100” D .29 .26 .25 .26 .28 .30 .33 .37 .42 .47 10 GA. .100” Cs 357 .41
STANDARD GRIP STRUT® FASTENERS
A ll gratings must be firmly anchored in place.

Welding planks to the supporting structure
provides a superior, permanent installation. In areas
ANCHOR AND CLAMP ASSEMBLY
Clamp prevents grating from shifting on supports. Holds pieces together
with or without clearance between panels. All bolts are below top surface of
where welding is not practical, or for installations where grating. No holes are drilled in supporting members.
Assembly consists of anchor plate, 2 J-bolts, nuts and
the planks must be removable, the diamond anchors or
washers all electro zinc plated. Option: anchoring device CHANNEL DEPTH CATALOG N0.
anchor clamp assemblies illustrated below can provide can be cadmium plated on special order.
suitable alternatives. 1-1/2” ACA-15
2” ACA-20
DIAMOND ANCHORS
2-1/2” ACA-25
Diamond Anchor Catalog #12262 is shaped to fit in
the diamond opening. Punched to receive 5/16” carriage 3” ACA-30
head bolt with square shank. Does not include bolts, nuts J-Bolt
or washers.
2-1/4" 3-1/2"
3/4"
D
3/4"
3-1/2"
Square Hole
for 5/16" Carriage Bolt
Anchor Plate
(see detail)
#10 Ga. (0.1365") Galv. 3/8" I-Beam

HEAVY DUTY GRIP STRUT® SAFETY GRATING
H eavy-Duty GRIP STRUT® Safety Grating products offer the advantages of Standard GRIP STRUT®, but are designed
for applications of greater load and/or longer span. Basic design is the same, but diamond openings are larger and
the metal is thicker. Heavy-Duty Grating products are available in many of the same configurations, materials and
M AT E R I A L S
• 10 GAUGE STEEL ASTM A-924-G90
finishes as Standard GRIP STRUT®. Heavy-Duty GRIP STRUT® Grating products include: planks, walkways and stair treads. (9 GA. & 11 GA. AVAILABLE ON SPECIAL ORDER)
• .100 ALUMINUM ASTM 5052-H32

(.150 AVAILABLE ON SPECIAL ORDER)
HOW TO SPECIFY HEAVY DUTY GRIP STRUT

STOCK LENGTHS –
INDICATES INDICATES PLANK WIDTH IN INDICATES CHANNEL
Up to 24'-0" HEAVY-DUTY NUMBER OF DIAMONDS DEPTHS
SERIES 2, 3, 5, 6, or 8. 20 2"
25 2-1/2"
30 3"
40 4"
d
CHANNEL DEPTHS –
2", 2-1/2",
H-82010
3" & 4"
INDICATES MATERIAL GAUGE INDICATES TYPE OF MATERIAL
10 ga steel or .150 Blank for pre-galvanized steel.
AILABLE –
IDTHS AV
aluminum. "B" for HRPO steel.
W "A" for aluminum
OTHER EXAMPLES:
2-Diamond – 9-1/4" Wide 6-Diamond – 27-3/4" Wide H-82010 = 36" WIDE, 2" DEEP, 10 GAUGE PRE-GALV. STEEL
3-Diamond – 13-3/4" Wide 8-Diamond –36" W ide H-62510-B = 27-3/4" WIDE, 2-1/2" DEEP, 10 GA. HRPO STEEL
H-240.150-A = 9-1/4" WIDE, 4" DEEP, .150 ALUMINUM
5-Diamond –23-1/4" Wide
1–5/16"
21/32" HEAVY-DUTY FASTENERS

Heavy-Duty GRIP 5-Diamond Plank Load Table – 23-1/4” Width
Channel Depth
STRUT® Hold-Down Clip P R O D U C T S E L E C T I O N / D E S I G N TA B L E S

Catalog No. H-BC-10
(stainless steel; use with 3/8” MATERIAL CHANNE WEIGH CATALOG SPAN
T LB./
square-shank carriage bolts, GAUGE L DEPTH LIN. FT. NUMBER 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 7'-6" 8'-0" 9'-0" 10'-0"
nuts and washers U 459 337 258 204 165 136 116 97 84 73 65 51 42
obtained locally). 2 14.4 H-52010 D .08 .11 .14 .18 .22 .25 .29 .34 .39 .44 .50 .63 .76
1-1/4" C 1378 1181 1033 919 827 752 689 636 590 551 517 459 413
D .09 .12 .15 .19 .24 .28 .33 .38 .44 .49 .55 .68 .81
U 718 528 404 319 259 214 180 153 132 115 101 81 65
2-1/2 14.9 H-52510 D .10 .14 .18 .23 .27 .32 .36 .42 .49 .55 .62 .79 .95
C 2089 1790 1567 1393 1253 1139 1044 964 895 836 783 696 627
STEEL D .08 .11 .14 .18 .22 .25 .29 .34 .39 .44 .50 .63 .76
2"
10 GA. U 765 562 430 339 276 228 190 163 141 122 107 85 68
1"
D .08 .11 .15 .18 .22 .26 .30 .34 .39 .44 .48 .58 .68
1-1/4"
3 15.4 H-53010
C 2222 1905 1667 1481 1311 1212 1111 1026 952 889 833 741 667
D .07 .09 .12 .15 .17 .21 .24 .28 .31 .35 .39 .47 .55
U 1254 921 706 557 452 373 312 268 231 201 177 139 113
Eq. 3-7/8" 9/16" 9/16" 3-7/8" Eq. 4 16.4 H-54010 D .07 .09 .12 .14 .17 .20 .23 .27 .31 .35 .39 .47 .56
C 3644 3124 2733 2430 2187 1988 1822 1682 1562 1458 1367 1215 1039
Width D .06 .07 .09 .11 .14 .16 .19 .22 .25 .28 .31 .38 .45
2-Diamond Plank Load Table – 9-1/4” Width 6-Diamond Plank Load Table – 27-3/4” Width
T LB./ T LB./
U 1141 876 699 529 428 354 300 253 218 191 167 132 109 U 410 301 230 182 147 122 103 87 75 66 58 46 37
2 7.4 H-22010 D .11 .15 .19 .24 .30 .35 .41 .47 .54 .62 .69 .85 1.04 2 16.2 H-62010 D .11 .15 .19 .24 .30 .35 .41 .47 .54 .62 .69 .85 1.04
C 1378 1181 1033 919 827 752 689 636 590 551 517 459 413 C 1378 1181 1033 919 827 752 689 636 590 551 517 459 413
D .09 .12 .15 .19 .24 .28 .33 .38 .44 .49 .55 .68 .81 D .09 .12 .15 .19 .24 .28 .33 .38 .44 .49 .55 .68 .81
U 1806 1327 1016 802 650 537 451 385 331 288 253 202 163 U 621 457 349 276 224 185 156 132 114 99 87 70 56
2-1/2 7.9 H-22510 D .10 .14 .18 .23 .27 .32 .36 .42 .49 .55 .62 .79 .96 2-1/2 16.7 H-62510 D .10 .14 .18 .23 .27 .32 .36 .42 .49 .55 .62 .79 .96
C 2089 1790 1567 1393 1253 1139 1044 964 895 836 783 696 627 C 2089 1790 1567 1393 1253 1139 1044 964 895 836 783 696 627
STEEL D .08 .11 .14 .18 .22 .25 .29 .34 .39 .44 .50 .63 .76 STEEL D .08 .11 .14 .18 .22 .25 .29 .34 .39 .44 .50 .63 .76
10 GA. U 1923 1413 1082 852 692 572 479 409 354 307 269 214 171 10 GA. U 662 486 372 293 239 197 164 141 122 106 93 74 59
3 8.4 H-23010 D .08 .11 .15 .18 .22 .26 .30 .34 .39 .44 .48 .58 .68 3 17.2 H-63010 D .08 .11 .15 .18 .22 .26 .30 .34 .39 .44 .48 .58 .68
C 2222 1905 1667 1481 1311 1212 1111 1026 952 889 833 741 667 C 2222 1905 1667 1481 1311 1212 1111 1026 952 889 833 741 667
D .07 .09 .12 .15 .17 .21 .24 .28 .31 .35 .39 .47 .55 D .07 .09 .12 .15 .17 .21 .24 .28 .31 .35 .39 .47 .55
U 3152 2316 1775 1401 1136 938 786 673 580 506 444 350 284 U 1805 797 611 482 391 323 270 232 200 174 153 120 98
4 10.3 H-24010 D .07 .09 .12 .14 .17 .20 .23 .27 .31 .35 .39 .47 .56 4 18.2 H-64010 D .07 .09 .12 .14 .17 .20 .23 .27 .31 .35 .39 .47 .56
C 3644 3124 2733 2430 2187 1988 1822 1682 1562 1458 1367 1215 1039 C 3644 3124 2733 2430 2187 1988 1822 1682 1562 1458 1367 1215 1039
D .06 .07 .09 .11 .14 .16 .19 .22 .25 .28 .31 .38 .45 D .06 .07 .09 .11 .14 .16 .19 .22 .25 .28 .31 .38 .45
T LB./ T LB./
U 801 589 450 356 288 238 202 170 147 128 113 89 73 U 306 225 172 136 110 91 77 65 56 49 43 34 28
2 9.5 H-32010 D .11 .15 .19 .24 .30 .35 .41 .47 .54 .62 .69 .85 1.04 2 19.9 H-82010 D .11 .15 .19 .24 .30 .35 .41 .47 .54 .62 .69 .85 1.04
C 1378 1181 1033 919 827 752 689 636 590 551 517 459 413 C 1378 1181 1033 919 827 752 689 636 590 551 517 459 413
D .09 .12 .15 .19 .24 .28 .33 .38 .44 .49 .55 .68 .81 D .09 .12 .15 .19 .24 .28 .33 .38 .44 .49 .55 .68 .81
U 1214 893 683 539 437 361 304 259 223 194 170 122 110 U 464 341 261 206 167 138 116 99 85 74 65 52 42
2-1/2 10.0 H-32510 D .10 .14 .18 .23 .27 .32 .36 .42 .49 .55 .62 .79 .96 2-1/2 20.4 H-82510 D .10 .14 .18 .23 .27 .32 .36 .42 .49 .55 .62 .79 .96
C 2089 1790 1567 1393 1253 1139 1044 964 895 836 783 696 627 C 2089 1790 1567 1393 1253 1139 1044 964 895 636 783 696 627
STEEL D .08 .11 .14 .18 .22 .25 .29 .34 .39 .44 .50 .63 .76 STEEL D .08 .11 .14 .18 .22 .25 .29 .34 .39 .44 .50 .63 .76
10 GA. U 1293 950 728 573 466 385 322 275 238 207 181 144 115 10 GA. U 494 363 278 219 178 147 123 105 91 79 69 55 44
3 10.5 H-33010 D .08 .11 .15 .18 .22 .26 .30 .34 .39 .44 .48 .58 .68 3 20.9 H-83010 D .08 .11 .15 .18 .22 .26 .30 .34 .39 .44 .48 .58 .68
C 2222 1905 1667 1481 1311 1212 1111 1026 952 889 833 741 667 C 2222 1905 1667 1481 1311 1212 1111 1026 952 889 833 741 667
D .07 .09 .12 .15 .17 .21 .24 .28 .31 .35 .39 .47 .55 D .07 .09 .12 .15 .17 .21 .24 .28 .31 .35 .39 .47 .55
U 2121 1558 1194 943 765 631 529 453 390 340 298 236 191 U 810 595 456 360 292 241 202 173 149 130 114 90 73
4 11.4 H-34010 D .07 .09 .12 .14 .17 .20 .23 .27 .31 .35 .39 .47 .56 4 21.8 H-84010 D .07 .09 .12 .14 .17 .20 .23 .27 .31 .35 .39 .47 .56
C 3644 3124 2733 2430 2187 1988 1822 1682 1562 1458 1367 1215 1039 C 3644 3124 2733 2430 2187 1988 1822 1682 1562 1458 1367 1215 1039
D .06 .07 .09 .11 .14 .16 .19 .22 .25 .28 .31 .38 .45 D .06 .07 .09 .11 .14 .16 .19 .22 .25 .28 .31 .38 .45
25
ROOFTOP WALKWAY SYSTEMS
R oofs look durable – but in most cases they were

never intended to be walked upon. As the volume
of rooftop equipment continues to expand, the wear and
tear of mounting maintenance traffic can lead to leaks in
roofing membranes and permanent roof replacement.
GRIP STRUT® Rooftop Walkways are a component
system of GRIP STRUT® Safety Gratings and various
support brackets, protective pads and hardware
connectors. These components can be incorporated at the
design stage of new roofs, or assembled to retro-fit
existing structures.
Unlike other products, this system is elevated to
discourage shortcuts and emphatically define the path to
service rooftop equipment such as HVAC units and
telecommunications transmission equipment. Safety is
provided by the slip resistance of GRIP STRUT® Safety
Grating, renowned for safety in all types of weather.
In addition to safety, GRIP STRUT® Rooftop Walkways
provide unsurpassed life-cycle economy. Roofs last longer,
with fewer leaks, and owners save on direct maintenance
and re-roofing expenses.
FOR A COMPLETE CATALOG

OF GRIP STRUT® ROOFTOP
WALKWAY SYSTEMS AND
COMPONENTS, CONTACT
INDIANA GRATINGS. ASK
FOR CATALOG G-797.
TRACTION TREADTM SAFETY GRATING

STOCK LENGTHS – M AT E R I A L S
12'-0" • PRE-GALVANIZED STEEL ASTM A-924-G90
13 & 11 GAUGE
CHANNEL DEPTHS – 13 & 11 GAUGE
d 1-1/2" or 2" • 5052 ALUMINUM .125 THICK
HOW TO SPECIFY TRACTION TREAD

E–
AIL ABL
S AV
INDICATES INDICATES PLANK WIDTH INDICATES CHANNEL
ID TH 7", 10", 12", or

TRACTION 7", 10", 12" or DEPTH
W TREAD custom specified. 15 1-1/2"
custom specified 20 2"
TT-122011
B C Spaces @ 5/8" Each
T RACTION TREADTM Safety Grating Planks feature a

surface with hundreds of perforated buttons that
provide slip-resistance in all directions making it a practical
90 O +
– 1"
1-1/4"
choice for industrial applications. TRACTION TREADTM is

also appropriate for commercial applications where MATERIAL GAUGE TYPE OF MATERIAL
pedestrian traffic is a consideration, perfectly suited for 13/16" 13 or 11 steel, .125 Blank for pre-galvanized steel.
ADA-compliant requirements. aluminum, or 16 ga. "B" for HRPO steel.
TRACTION TREADTM is easily adapted for a multitude
TRACTION TREAD PLANK stainless steel. "A" for aluminum
# OF BUTTON "S" for 304 stainless steel
of applications, offering a safe walking-working surface for PRODUCT A B C ROWS
walkways, ramps, stair treads and equipment platforms. OTHER EXAMPLES:
12” WIDE 11-7/8 15/16 16 17
TRACTION TREADTM is ideal for the manufacture of TT-122011 = 12" WIDE, 2" DEEP, 11 GA. PRE-GALV. STEEL
specialty and fabricated products, and is often used as a 10” WIDE 9-7/8 7/8 13 14 TT-715.125A = 7" WIDE, 1-1/2" DEEP, .125 ALUMINUM
reconditioning material over existing surfaces that do not TT-102011-B = 10" WIDE, 2" DEEP, 11 GA. HRPO STEEL
7” WIDE 6-7/8 15/16 8 9
provide slip-resistance.

PERF-0 GRIP® SAFETY GRATING
M AT E R I A L S
STOCK LENGTHS – • PRE-GALVANIZED STEEL ASTM A-924-G90
10'-0" & 12'-0" 13 & 11 GAUGE
(Custom lengths available
up to 24'-0") • HRPO UNCOATED STEEL ASTM A-569
13 & 11 GAUGE
• 5052 ALUMINUM .125 THICK
• 304 STAINLESS STEEL

16 & 14 GAUGE
HOW TO SPECIFY PERF-O GRIP
INDICATES PLANK WIDTHS PLANK DEPTHS
PERF-O GRIP In number of holes. 15 1-1/2"
2, 3, 5, 6, 10, 13, or 2"
20 16.
30 3"
–
BLE
ILA
VA
W
ID
THS A 2-Hole
3-Hole
5" Wide
7" Wide
P-62011
5-Hole 10" Wide
CHANNEL DEPTH – 6-Hole 12" Wide INDICATES MATERIAL GAUGE INDICATES TYPE OF MATERIAL
10-Hole 18" Wide 13 or 11 ga. steel, Blank for pre-galvanized steel.
13 ga. 1-1/2" & 2" d 13-Hole 24" Wide .125 aluminum, or "B" for HRPO steel.
11ga. 1-1/2", 2" & 3" 16-Hole 30" Wide
16 or 14 ga. stainless steel. "A" for aluminum
"S" for stainless steel
OTHER EXAMPLES:
P-62011 = 12" WIDE, 2" DEEP, 11 GAUGE PRE-GALV. STEEL
P-51513-B = 10" WIDE, 1-1/2" DEEP, 13 GAUGE HRPO STEEL
P-320.125-A = 7" WIDE, 2" DEEP, .125 ALUMINUM
P ERF-O GRIP® Grating’s unique surface of large

debossed holes and perforated buttons provides
minimal deflection; rugged durability with longer
lasting performance.
Channel Width +
– 1/16"
Channel Depth +– 1/16"

maximum slip protection and performance under FAST INSTALLATION – Light, easy-to-handle planks make
practically all conditions and in every direction. installation simple and quick. They can be handled by
3/32" Nominal
In addition to providing safety, the resilient surface of one person. Most sections are rapidly bolted, clamped or 90 +
O
– 1"
PERF-O GRIP® Grating cushions the impact of foot-falls welded into place, easily field cut at virtually any angle, or
thereby lessening worker fatigue and increasing efficiency. fabricated to adapt to field conditions.
PERF-O GRIP® Grating is one of your best safety buys. It ECONOMICAL TO INSTALL AND USE – In addition to low
7/8" +
– 1/8" 7/8" +
– 1/8"
cuts costs and helps improve plant productivity. material cost and nominal erection cost, PERF-O GRIP® 1–5/16"
SAFE SURFACE – Grips soles securely - in all directions. Grating also features long-lasting rust-resistant materials
Slip resistant PERF-O GRIP® Grating surfaces are ideal for and finishes. Standard mill-galvanized finish resists
inside or outside locations where mud, ice, snow, oil and corrosion to provide lasting surfaces. High-strength
detergents can create hazardous walking conditions. aluminum, Type 316-2D and Type 304-2D stainless steels
The circular openings (38% of surface area depending are available to provide maximum corrosion resistance.
on product size) are small enough to catch most falling Black unpainted steel is available for those installations
2"
tools and other dangerous objects. But the self-cleaning requiring paint. Lightweight but brawny panels permit
open design permits quick drainage of fluids, chips, grease substantial reduction in structural steel requirements.
and mud while permitting ventilation and lighting flow. VERSATILE IN APPLICATION – A variety of standard widths
Ice accumulation shears easily under normal foot pressure. and channel heights are available as well as numerous
Open design allows convenient access for cleaning. non-standard shapes and sizes to meet almost any
PERF-O GRIP® is easily cleaned with brush, liquid or air requirements of strength, size, durability, weight, finish,
spray if desired. appearance and application.
LONG LIFE – PERF-O GRIP® Grating’s high load capacity PERF-O GRIP® Grating combines safety and durability 1-11/16" 1-11/16"
and long-life, high strength-to-weight performance is with ease of fabrication and versatility. One-piece 3-3/8"
achieved through depth of section and structural design. construction minimizes the need for field fabrication.
Formed struts with integral side channels form a plank Special shapes and forming can be accomplished to suit otherwise finished to suit job requirements. Standard
that can support loads with minimum transverse and unusual requirements. PERF-O GRIP® Plank is available in materials and sizes to
longitudinal deflection. This sturdy construction provides PERF-O® GRIP Grating may be hot dipped galvanized meet most load/span requirements. May be used as is, or
the advantages of heavy load-carrying capacity with after fabrication, anodized, plated, plastic-coated or banded, cut, welded or notched to suit requirements.
PERF-O GRIP® FASTENERS

BOLT SEATS – PERF-O GRIP® Bolt Seats MID-CLIP – PERF-O GRIP® J-CLIP – PERF-O GRIP® J-Clips
provide a secure anchor of the grating to Midsupport clips can be used at fasten the grating securely to the
structural supports. The standard bolt seat midspan to increase load carrying supporting steel without drilling
features oblong holes specifically designed to capacities of individual channels holes. Standard finish is galvanized.
ensure a vertical anchor (with a 3/8” bolt) by fastening several planks Hardware is not provided.
even if the hole is off concentrically by as together to form an integral
much as 1/4”. PERF-O GRIP® section. The Midsupport Clip is
Double Bolt Seats are manufactured from galvanized
available to steel and includes two bolts.
maximize the
attachment
location flexibility
by providing
approximately 2” of
longitudinal adjustment. Available
in mill-galvanized steel, aluminum
and stainless steel. Hardware is not provided.
27
PERF-0 GRIP® SAFETY GRATING LOAD TABLES
ALLOWABLE LOADS AND DEFLECTIONS: U – UNIFORM LOAD (LB./FT.), C – CONCENTRATED LOAD (LB.), D – DEFLECTION (IN.). SPANS TO THE LEFT OF HEAVY LINE PRODUCE A DEFLECTION OF 1/4” OR LESS UNDER A
UNIFORM LOAD OF 100 LBS. PER SQUARE FOOT. FOR PERF-O GRIP PRODUCT WIDTHS GREATER THAN 12”, USE OF GRATING SPLICE KIT IS RECOMMENDED TO MECHANICALLY JOIN BUTT ENDS OF LENGTH.
Perf-O Grip® 2-Hole Plank – 5” Width Perf-O Grip® 6-Hole Plank – 12” Width
PLANK CHANNE WEIGH CATALOG SPAN PLANK CHANNE WEIGH CATALOG SPAN
T LB./ T LB./
MATERIAL L DEPTH LIN. FT. NUMBER 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 7'-6" 8'-0" 9'-0" MATERIAL L DEPTH LIN. FT. NUMBER 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 7'-6" 8'-0" 9'-0"
U 895 659 505 400 325 269 227 194 168 146 130 103 U 456 336 258 204 166 138 117 100 87 76 67 54
1-1/2 2.6 P21513 D .11 .15 .20 .25 .31 .38 .45 .53 .62 .71 .82 1.04 1-1/2 4.3 P61513 D .10 .13 .17 .22 .27 .33 .40 .47 .55 .63 .72 .92
C 559 481 421 375 338 308 284 263 244 229 216 194 C 684 588 516 460 416 380 349 325 303 285 268 241
STEEL D .09 .12 .16 .20 .25 .30 .36 .43 .49 .57 .65 .83 STEEL D .08 .11 .14 .18 .22 .26 .32 .37 .44 .50 .58 .74
13 GA. U 1352 994 762 603 490 405 341 292 253 221 194 155 13 GA. U 671 493 378 299 243 201 170 145 126 110 97 77
2 2.8 P22013 D .09 .12 .15 .19 .24 .29 .34 .41 .47 .54 .62 .79 2 4.6 P62013 D .07 .10 .13 .16 .20 .25 .29 .35 .40 .46 .53 .68
C 845 725 635 566 510 465 427 395 368 344 324 290 C 961 862 756 673 608 555 509 472 440 413 388 349
D .07 .09 .12 .15 .19 .23 .28 .32 .38 .43 .50 .63 D .06 .08 .10 .13 .16 .20 .23 .28 .32 .37 .42 .54
U 1294 950 728 575 466 385 323 276 237 207 182 143 U 515 378 291 230 188 156 131 112 97 85 75 60
ALUM. 2 1.3 P220.125A D .18 .24 .32 .40 .50 .60 .72 .84 .98 1.12 1.27 1.61 1-1/2 5.3 P61511 D .09 .12 .16 .21 .25 .31 .37 .43 .50 .57 .65 .82
.125 C 809 693 606 539 485 441 404 373 346 323 303 270 C 821 703 615 547 492 448 410 379 352 328 308 274
D .14 .20 .25 .32 .40 .48 .57 .67 .78 .90 1.02 1.29 D .07 .10 .13 .16 .20 .25 .29 .34 .40 .46 .52 .66
STAINLESS U 1422 1046 800 632 512 424 355 303 262 227 200 159 U 861 633 486 385 312 259 218 186 161 140 124 99
2 2.1 P22016S D .12 .16 .21 .26 .32 .39 .46 .54 .63 .72 .82 1.04 STEEL 2 5.5 P62011 D .07 .10 .13 .16 .20 .24 .29 .34 .40 .46 .52 .67
STEEL C 1292 1109 971 865 781 712 654 604 563 527 496 444
16 GA. C 889 761 666 593 534 485 445 410 381 355 334 296 11 GA.
D .09 .13 .16 .21 .26 .31 .37 .43 .50 .58 .66 .83 D .06 .08 .10 .13 .16 .20 .23 .27 .32 .37 .42 .54
STAINLESS U 1673 1230 942 744 602 498 418 357 307 267 235 186 U 1701 1250 957 757 614 507 427 365 315 274 242 192
STEEL 2 2.3 P22014S D .13 .17 .22 .27 .34 .41 .49 .57 .66 .77 .87 1.10 3 6.2 P63011 D .05 .07 .10 .12 .15 .18 .22 .25 .29 .34 .39 .49
14 GA. C 1046 896 784 697 627 570 523 482 448 418 392 349 C 2299 1971 1724 1533 1405 1396 1282 1185 1102 1030 968 864
D .10 .14 .17 .22 .27 .33 .39 .46 .54 .61 .70 .88 D .04 .05 .07 .09 .11 .14 .17 .20 .24 .27 .31 .39
U 650 478 366 290 235 194 163 140 120 104 93 73
ALUM. 2 2.1 P620.125A D .17 .23 .30 .38 .47 .57 .68 .79 .92 1.05 1.20 1.52
.125 C 1075 921 806 716 645 586 537 496 461 430 403 358
D .14 .18 .24 .30 .38 .45 .54 .63 .74 .84 .96 1.22
Perf-O Grip® 3-Hole Plank – 7” Width STAINLESS

STEEL 2 3.2 P62016S
U
D
C
573
.10
835
421
.13
715
322 255 206
.17 .22
626 556 501
.27
170 143 122
.33 .39 .46
469 430 397
105
.53
91
.61
368 343
80
.69
322
64
.88
286
16 GA. D .07 .10 .13 .17 .21 .26 .31 .37 .42 .49 .55 .70
P R O D U C T S E L E C T I O N / D E S I G N TA B L E S
STAINLESS U 647 475 365 288 233 193 162 138 119 104 82 65
PLANK CHANNE WEIGH CATALOG SPAN STEEL 2 3.8 P62014S D .10 .13 .17 .21 .26 .32 .38 .44 .51 .59 .65 .83
T LB./ C 944 809 708 629 583 529 486 448 416 389 365 323
MATERIAL L DEPTH LIN. FT. NUMBER 14 GA.
3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 7'-6" 8'-0" 9'-0" D .07 .10 .13 .17 .21 .25 .30 .35 .41 .47 .54 .68
U 685 504 387 306 249 206 174 149 129 112 100 79
1-1/2 3.0 P31513 D .11 .14 .19 .24 .29 .36 .43 .50 .58 .67 .77 .98
C 609 522 457 406 366 332 305 283 263 246 232 208
STEEL
13 GA.
D
U
.08
1024
.12
754
.15 .19 .24
578 458 371
.29 .34
307 259 222
.40 .47
192
.54
167
.61
147
.78
118
Perf-O Grip® 10-Hole Plank – 18” Width
2 3.3 P32013 D .08 .11 .14 .18 .23 .27 .33 .38 .44 .51 .58 .74 P R O D U C T S E L E C T I O N / D E S I G N TA B L E S
C 913 783 685 609 548 498 456 421 391 366 344 308
D .07 .09 .12 .15 .18 .22 .26 .31 .35 .41 .47 .59
U 883 650 498 394 320 265 224 191 165 144 128 101
PLANK CHANNE WEIGH CATALOG SPAN
T LB./
1-1/2 4.2 P31511 D .11 .15 .19 .24 .30 .36 .43 .51 .59 .68 .78 .98 MATERIAL L DEPTH LIN. FT. NUMBER 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 7'-6" 8'-0" 9'-0"
C 777 666 582 518 467 426 391 362 337 316 297 266
D .09 .12 .15 .19 .24 .29 .34 .40 .47 .54 .62 .79 U 317 233 179 142 116 96 82 69 60 52 45 36
U 1375 1012 776 614 498 411 347 302 261 228 201 160 1-1/2 5.7 P101513 D .10 .13 .17 .21 .26 .32 .39 .45 .52 .60 .68 .86
STEEL 2 4.5 P32011 D .08 .11 .15 .19 .23 .28 .34 .40 .47 .54 .62 .78 C 642 551 495 481 434 397 366 337 314 293 274 243
C 1175 1032 904 805 726 661 607 573 533 499 469 420 STEEL D .07 .09 .12 .17 .21 .26 .31 .36 .42 .48 .55 .69
11 GA.
D .07 .09 .12 .15 .19 .23 .27 .32 .37 .43 .49 .63 13 GA. U 476 350 268 212 173 143 121 103 90 78 69 55
U 2581 1898 1454 1150 932 771 649 554 479 417 367 291 2 6.0 P102013 D .07 .10 .13 .16 .20 .24 .29 .34 .40 .46 .53 .67
C 968 830 726 645 581 528 509 489 470 439 411 366
3 4.8 P33011 D .06 .08 .11 .13 .17 .20 .24 .28 .33 .37 .43 .54
D .05 .06 .09 .12 .14 .17 .22 .27 .32 .37 .42 .53
C 2125 1822 1594 1417 1275 1159 1132 1050 976 913 857 764
D .04 .06 .07 .10 .12 .15 .19 .22 .26 .30 .34 .43 U 347 255 196 156 127 105 89 76 66 58 52 41
U 1035 761 582 460 372 308 258 221 190 166 146 115 1-1/2 6.8 P101511 D .09 .12 .15 .19 .24 .29 .34 .40 .47 .53 .61 .77
ALUM. 2 1.5 P320.125A D .20 .27 .35 .44 .54 .66 .78 .92 1.07 1.23 1.39 1.76 C 838 718 629 559 503 457 419 387 359 335 314 279
C 1006 862 755 671 604 549 503 464 431 402 377 335 D .07 .09 .12 .15 .19 .23 .27 .32 .37 .43 .49 .62
.125
D .16 .21 .28 .35 .44 .53 .63 .74 .85 .98 1.12 1.41 U 555 408 314 249 201 167 141 121 104 91 80 64
U 971 714 546 432 350 289 243 207 178 155 137 107 STEEL 2 7.1 P102011 D .07 .09 .12 .15 .18 .22 .26 .31 .35 .41 .46 .59
STAINLESS C 1283 1099 962 855 770 700 641 592 550 514 484 434
STEEL 2 2.4 P32016S D .10 .13 .17 .22 .27 .33 .39 .46 .53 .61 .70 .88 11 GA.
C 850 729 638 567 510 464 425 392 365 341 319 283 D .05 .07 .09 .12 .14 .17 .21 .24 .28 .33 .37 .48
16 GA. D .08 .11 .14 .18 .22 .26 .31 .37 .43 .49 .56 .70 U 1189 873 669 528 428 354 297 254 219 190 167 132
U 1091 801 614 485 393 325 273 232 200 175 153 121 3 7.9 P103011 D .05 .07 .09 .11 .14 .17 .20 .24 .28 .31 .36 .45
STAINLESS C 2354 2018 1766 1569 1412 1284 1177 1141 1106 1070 1003 892
STEEL 2 2.8 P32014S D .10 .14 .18 .22 .27 .33 .40 .47 .54 .62 .70 .89
D .03 .04 .06 .08 .10 .12 .14 .20 .23 .25 .29 .36
C 954 818 715 637 573 521 478 440 409 382 358 318
14 GA. D .08 .11 .14 .18 .22 .27 .32 .37 .43 .49 .56 .71 U 441 324 248 196 158 131 110 94 81 70 62 49
ALUM. 2 2.8 P1020.125A D .16 .21 .28 .35 .44 .53 .63 .74 .86 .98 1.12 1.42
.125 C 1102 944 826 734 661 601 551 508 472 441 413 367
D .13 .17 .22 .28 .35 .42 .50 .59 .69 .79 .89 1.13
Perf-O Grip® 5-Hole Plank – 10” Width Perf-O Grip® 13-Hole Plank – 24” Width
PLANK CHANNE WEIGH CATALOG SPAN
T LB./
MATERIAL L DEPTH LIN. FT. NUMBER 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 7'-6" 8'-0" 9'-0" PLANK CHANNE WEIGH CATALOG SPAN
T LB./
MATERIAL L DEPTH LIN. FT. NUMBER 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 7'-6" 8'-0" 9'-0"
U 517 380 291 230 187 154 129 110 95 83 73 58
1-1/2 3.5 P51513 D .11 .15 .19 .24 .30 .36 .43 .51 .59 .67 .77 .98 U 486 357 273 216 175 145 123 105 91 79 70 56
C 645 554 485 431 388 353 323 298 277 259 242 216 2 8.9 P132011 D .06 .09 .12 .15 .18 .22 .26 .31 .36 .41 .47 .60
STEEL D .09 .12 .15 .19 .24 .29 .35 .41 .47 .54 .61 .78 C 1395 1196 1046 930 837 761 697 644 598 558 540 504
13 GA. U 771 568 435 344 281 232 196 167 144 126 110 88 STEEL D .05 .06 .09 .11 .14 .17 .20 .23 .27 .31 .37 .49
2 3.9 P52013 D .08 .11 .15 .18 .23 .28 .33 .39 .45 .52 .59 .75 11 GA. U 876 644 493 389 315 261 219 187 161 141 124 99
C 865 741 648 645 584 532 489 453 422 392 368 327 3 9.8 P133011 D .04 .06 .08 .10 .12 .15 .18 .21 .24 .28 .32 .40
D .05 .08 .10 .15 .18 .22 .26 .31 .36 .41 .47 .60 C 2528 2167 1896 1685 1517 1379 1264 1167 1083 1011 948 843
U 618 455 349 276 225 186 157 134 117 101 90 71 D .03 .04 .05 .07 .09 .10 .12 .15 .17 .19 .22 .30
1-1/2 4.5 P51511 D .10 .14 .18 .23 .29 .35 .41 .49 .57 .65 .75 .95
C 772 663 582 518 467 426 392 363 338 318 299 268
D .08 .11 .15 .18 .23 .28 .33 .39 .45 .52 .60 .76
STEEL 2 5.1 P52011 D

U 1005
.08
739
.11
567 449 364
.15 .19 .23
300 253
.28 .33
216
.39
186
.45
162
.52
142
.59
112
.75
Perf-O Grip® 16-Hole Plank – 30” Width
11 GA. C 1113 954 888 823 758 689 631 583 541 505 473 421
D .06 .08 .11 .14 .18 .22 .27 .31 .36 .42 .47 .60 P R O D U C T S E L E C T I O N / D E S I G N TA B L E S
U 1873 1376 1053 832 674 557 468 399 344 300 263 208
3 5.4 P53011 D .06 .08 .10 .13 .16 .19 .23 .27 .31 .36 .41 .52 PLANK CHANNE WEIGH CATALOG SPAN
T LB./
C 2064 1769 1548 1376 1238 1126 1032 952 927 902 878 781 MATERIAL L DEPTH LIN. FT. NUMBER
D .04 .05 .07 .08 .11 .14 .16 .19 .24 .28 .33 .41 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 7'-6" 8'-0" 9'-0"
U 710 522 400 316 256 212 178 153 131 115 101 80 U 425 312 239 189 153 126 106 91 77 68 60 47
ALUM. 2 1.8 P520.125A D .18 .24 .31 .40 .49 .59 .71 .83 .96 1.10 1.26 1.59 2 11.8 P162011 D .04 .05 .07 .09 .11 .13 .16 .18 .21 .24 .28 .35
.125 C 954 818 715 636 572 520 477 440 409 382 358 318 C 1709 1465 1282 1140 1026 932 855 789 733 684 641 570
D .13 .19 .25 .32 .39 .47 .57 .66 .77 .88 1.00 1.27 D .03 .04 .06 .07 .09 .10 .12 .15 .17 .20 .22 .28
STAINLESS U 630 463 354 280 226 187 158 134 115 101 88 70 U 628 461 353 279 226 187 157 134 116 100 89 70
2 2.7 P52016S D .10 .13 .17 .21 .26 .32 .38 .44 .52 .59 .67 .85 STEEL 3 12.7 P163011 D .04 .06 .08 .10 .12 .14 .17 .20 .23 .26 .30 .38
STEEL C 765 656 574 510 459 430 393 363 337 315 295 263
16 GA. 11 GA. C 2534 2172 1901 1690 1521 1382 1267 1170 1086 1014 950 845
D .07 .10 .13 .17 .21 .26 .30 .36 .41 .48 .54 .69 D .03 .04 .05 .07 .09 .10 .12 .14 .17 .19 .22 .28
STAINLESS U 711 522 400 315 256 211 178 152 130 114 99 79 U 996 731 560 443 358 296 249 212 183 159 140 111
STEEL 2 3.2 P52014S D .10 .13 .17 .22 .27 .32 .38 .45 .52 .60 .68 .86 4 13.5 P164011 D .03 .04 .06 .07 .09 .11 .13 .15 .17 .20 .23 .29
C 864 741 648 576 530 485 445 410 381 355 334 296 C 3892 3336 2919 2595 2335 2123 1946 1796 1668 1557 1459 1297
14 GA. D .07 .10 .13 .17 .21 .26 .31 .36 .42 .48 .55 .69 D .02 .03 .04 .05 .07 .08 .09 .11 .13 .15 .17 .21

GRATE-LOCK® INTERLOCKING SAFETY GRATING
STOCK LENGTHS –
Up to 24'-0" M AT E R I A L S
• PRE-GALVANIZED STEEL ASTM A-924-G90
14, 16 & 18 GAUGE

14, 16 & 18 GAUGE
H O W T O S P E C I F Y G R AT E - L O C K
GRATING SURFACE PLANK WIDTHS PLANK HEIGHT

d CHANNEL DEPTHS – MG for traction grip In inches. 6, 9, 15 1-1/2"
MS for smooth surface or 12. 25 2-1/2"
1-1/2", 2-1/2", 30 3"
3" or 4" 40 4"
– "MS" SMOOTH SURFACE

BLE
AILA
AV
WI
S
DTH 6", 9", or 12" "MG" TRACTION GRIP SURFACE MG-122516-FM
MATERIAL GAUGE INTERLOCK DETAIL
G RATE-LOCK® Grating is an easy-to-install system of

interlocking grating planks, treads and accessories
that provides safe, sturdy footing for mezzanine floors,
the broadest line products of any manufacturer. Available
in three plank widths, four plank heights, three gauges
and lengths to 24’. Interlocking sections provide the
14, 16 or 18 ga steel. FM for Female/Male
M
platforms, walkways and other applications where non- strength you need for extra-wide designs.
slip performance is required. Hundreds of sole-gripping FULL LINE OF ACCESSORIES, TOO – Our line includes
dimples insure a safe surface in all kinds of of weather and kickplates, hold-down clamps, attachment hardware and
environments. The grating is available textured for safer stair treads for complete job design. FM
working surfaces, non-textured for wheeled traffic or FAST BOLT-TOGETHER ASSEMBLY – Save time in the field
rack decking. with GRATE-LOCK bolt-together slotted assemblies.
COST-SAVING DESIGN IMPROVES LOADING PERFORMANCE – Kickplates and plank sections are prepunched. For
The unique design of GRATE-LOCK Grating gives you additional ease, planks can be straight, curved or angle
more design options – at less cost than other grating cut with hand tools.
systems. Increased load performance (see charts) has been SPECIFY GRATE-LOCK GRATING WITH CONFIDENCE – We have
FF
achieved through interlocking planks, stronger rung constructed our load tables using the most stringent
design and an expanded selection of leg heights and interpretation of the AISI standards: Our safe allowable
material gauges. GRATE-LOCK Grating lets you specify loads guard against harmful local distortion as well as
lighter gauge steel for substantial material saving. failure. Some manufacturers have prepared allowable load
MORE SIZES, GAUGES – GRATE-LOCK Grating provides tables guarding against failure only.
MM
P L A N K D E TA I L S
Length +– 1/4" Channel Depth +– 1/16"
ACCESSORIES
1.500" 9/16" +– 1/8"
.080"
.750" .750" 1/4" +–1/8"
1" +– 1/16"
SIDE END
KICKPLATE KICKPLATE
.750 Typ.
Channel Width +– 1/16"
KICK PLATE J-BOLT

CLIP
TAP SCREW HEX HEAD

(SELF- BOLT
DRILLING)
HOLD DOWN CLAMP
SYSTEM COMPONENTS
ITEM PRODUCT CODE HEIGHT
SIDE KICKPLATE (14 GA.) M-SK-2514 6-1/2”
12-FT. LENGTHS M-SK-3014 7”
M-SK-4014 8”
END KICKPLATE (14 GA.) M-EK-2514 6-1/2”
12-FT. LENGTHS M-EK-3014 7”
SOLID FILLER PLANK M-EK-4014 8”
KICKPLATE CLIP M-KC –
M-HC-25 2-1/2”
HOLD-DOWN CLAMP M-HC-30 3”
M-HC-40 4”
SOLID SURFACE 3” WIDE PLANK FOR STAIR TREADS SEE J-BOLT M-250J 2-1/2”
IN MALE/FEMALE PROFILE. IDEAL PAGES 31-32. TAPSCREW (SELF-DRILLING) M-SDST-25 1”
FOR CLOSING NON-INCREMENTAL 3/8” HEX HEAD BOLT M-100-B 1”
3"
PLATFORM WIDTHS. WITH NUT & WASHER
29
GRATE-LOCK® LOAD TABLES
1-1/2” Channel Height 2-1/2” Channel Height

WGHT/ CATALOG SPAN CATALOG SPAN
GAUGE WIDTH LF GAUGE WIDTH WGHT/
LF
NUMBER 2’-0” 3’-0” 4’-0” 5’-0” 6’-0” 7’-0” 8’-0” 9’-0” 10’-0” 11’-0” 12’-0” NUMBER 2’-0” 3’-0” 4’-0” 5’-0” 6’-0” 7’-0” 8’-0” 9’-0” 10’-0” 11’-0” 12’-0”
U 443 196 110 70 49 36 27 21 17 14 12 U 1057 552 312 200 140 103 80 64 52 43 36
12” 2.9 MG121518
D .10 .14 .22 .33 .48 .65 .84 1.06 1.31 1.59 1.89 12” 3.7 MG122518
D .03 .10 .17 .27 .39 .54 .71 .90 1.13 .138 1.61
C 440 293 220 176 146 125 110 97 88 80 73 C 529 529 529 501 420 362 319 286 260 239 217
D .04 .10 .17 .26 .38 .52 .68 .86 1.06 1.28 1.54 D .01 .05 .12 .22 .31 .43 .57 .72 .90 1.09 1.33
U 591 263 147 94 65 48 37 29 23 19 16 U 1552 691 390 251 175 129 100 79 65 54 46
18 9” 2.3 MG91518
D .10 .14 .22 .33 .48 .65 .84 1.06 1.31 1.59 1.89 18 9” 3.2 MG92518
D .05 .10 .18 .28 .41 .56 .74 .95 1.18 1.44 1.73
C 440 293 220 176 146 125 110 97 88 80 73 C 705 705 585 470 394 339 299 268 243 223 207
D .04 .10 .17 .26 .38 .52 .68 .86 1.06 1.28 1.54 D .02 .07 .14 .23 .33 .45 .59 .76 .94 1.15 1.38
U 890 395 222 142 99 72 55 44 35 29 24 U 2141 954 538 346 241 178 137 109 89 74 63
6” 1.9 MG61518
D .10 .14 .22 .33 .48 .65 .84 1.06 1.31 1.59 1.89 6” 2.6 MG62518
D .04 .09 .16 .25 .36 .50 .65 .83 1.04 1.27 1.52
C 440 293 220 176 146 125 110 97 88 80 73 C 1053 715 538 432 362 312 274 246 223 204 189
D .04 .10 .17 .26 .38 .52 .68 .86 1.06 1.28 1.54 D .04 .07 .13 .20 .29 .40 .52 .67 .83 1.01 1.22
U 549 244 137 87 61 44 34 27 22 18 15 U 1276 655 370 238 166 123 95 76 62 52 44
12” 3.5 MG121516
D .10 .14 .22 .33 .48 .65 .84 1.06 1.31 1.59 1.89 12” 4.6 MG122516
D .03 .10 .17 .27 .39 .54 .71 .91 1.13 1.39 1.67
C 546 364 273 218 182 156 136 121 109 99 91 C 638 638 638 595 499 432 381 342 312 285 261
D .04 .10 .17 .26 .38 .52 .68 .86 1.06 1.28 1.54 D .01 .05 .12 .22 .31 .43 .57 .72 .91 1.10 1.31
U 733 326 183 117 81 59 45 36 29 24 20 U 1949 869 491 316 220 163 126 100 82 69 58
16 9” 2.9 MG91516
D .10 .14 .22 .33 .48 .65 .84 1.06 1.31 1.59 1.89 16 9” 3.9 MG92516
D .05 .10 .18 .29 .41 .57 .75 .96 1.19 1.46 1.76
C 546 364 273 218 182 156 136 121 109 99 91 C 851 851 736 592 496 428 378 339 308 383 261
D .04 .10 .17 .26 .38 .52 .68 .86 1.06 1.28 1.54 D .02 .09 .15 .23 .33 .45 .60 .76 .95 1.17 1.40
U 1104 490 276 176 122 90 69 54 44 36 30 U 2774 1235 696 447 312 230 177 140 114 95 81
6” 2.3 MG61516
D .10 .14 .22 .33 .48 .65 .84 1.06 1.31 1.59 1.89 6” 3.2 MG62516
D .04 .09 .17 .26 .38 .51 .67 .86 1.06 1.30 1.55
C 546 364 273 218 182 156 136 121 109 99 91 C 1134 926 696 559 467 402 354 316 286 262 242
D .04 .10 .17 .26 .38 .52 .68 .86 1.06 1.28 1.54 D .02 .07 .13 .21 .30 .41 .54 .69 .85 1.04 1.24
U 667 296 166 106 74 54 41 32 26 22 18 U 1276 783 442 284 199 147 113 90 74 62 52
12” 4.2 MG121514
D .10 .14 .22 .33 .48 .65 .84 1.06 1.31 1.59 1.89 12” 5.6 MG122514
D .03 .10 .17 .27 .39 .54 .71 .91 1.13 1.38 1.63
C 663 442 331 265 221 189 165 147 132 120 110 C 730 730 730 711 596 514 454 407 370 338 310
D .04 .10 .17 .26 .38 .52 .68 .86 1.06 1.28 1.54 D .01 .05 .12 .22 .31 .43 .57 .72 .90 1.09 1.31
U 891 396 222 142 99 72 55 44 35 29 24 U 2357 1050 593 381 266 196 151 121 98 82 70
14 9” 3.5 MG91514
D .10 .14 .22 .33 .48 .65 .84 1.06 1.31 1.59 1.89 14 9” 4.8 MG92514
D .04 .10 .18 .28 .41 .56 .74 .94 1.17 1.43 1.72
C 663 442 331 265 221 189 165 147 132 120 110 C 974 974 889 714 598 516 454 407 369 339 314
D .04 .10 .17 .26 .38 .52 .68 .86 1.06 1.28 1.54 D .02 .07 .14 .23 .33 .45 .59 .75 .94 1.14 1.38
U 1341 596 335 214 149 109 83 66 53 44 37 U 3722 1654 931 596 414 304 233 184 149 123 103
D .10 .14 .22 .33 .48 .65 .84 1.06 1.31 1.59 1.89 D .05 .10 .18 .29 .42 .56 .74 .93 1.15 1.39 1.65
6” 2.7 MG61514 6” 4.0 MG62514
C 663 442 331 265 221 189 165 147 132 120 110 C 1461 1241 931 744 620 532 465 414 372 338 310
D .04 .10 .17 .26 .38 .52 .68 .86 1.06 1.28 1.54 D .03 .09 .14 .23 .33 .45 .58 .74 .92 1.11 .132
3” Channel Height 4” Channel Height

CATALOG SPAN CATALOG SPAN
GAUGE WIDTH WGHT/
LF GAUGE WIDTH WGHT/
LF
NUMBER 2’-0” 3’-0” 4’-0” 5’-0” 6’-0” 7’-0” 8’-0” 9’-0” 10’-0” 11’-0” 12’-0” NUMBER 2’-0” 3’-0” 4’-0” 5’-0” 6’-0” 7’-0” 8’-0” 9’-0” 10’-0” 11’-0” 12’-0”
U 1057 611 345 222 155 114 88 70 57 48 41 U 1057 996 560 359 249 183 140 111 90 74 62
12” 3.9 MG123018
D .02 .07 .12 .19 .28 .39 .51 .65 .80 .98 1.20 12” 4.2 MG124018
D .03 .06 .11 .16 .24 .34 .42 .54 .66 .81 .96
C 529 529 529 529 472 405 354 316 287 263 244 C 529 529 529 529 529 529 529 498 448 408 374
D .01 .03 .07 .14 .22 .31 .41 .52 .64 .79 .95 D .00 .01 .04 .08 .13 .21 .32 .44 .53 .65 .77
U 1881 840 472 302 210 154 118 93 76 62 52 U 1881 1329 747 478 332 244 187 148 120 99 83
18 9” 3.3 MG93018
D .03 .08 .13 .21 .31 .42 .55 .68 .86 1.01 1.21 18 9” 3.7 MG94018
D .02 .06 .12 .18 .26 .35 .47 .58 .72 .86 1.03
C 705 705 705 567 472 405 354 315 283 258 236 C 705 705 705 705 705 641 560 498 448 408 374
D .01 .04 ..11 .17 .24 .33 .44 .55 .68 .82 .98 D .01 .02 .06 .12 .20 .28 .36 .46 .57 .70 .83
U 2834 1260 709 453 315 231 177 140 113 94 79 U 4232 1993 1121 717 498 366 280 221 179 148 125
6” 2.8 MG63018
D .04 .07 .13 .21 .29 .39 .52 .66 .80 .99 1.19 6” 3.2 MG624018
D .03 .06 .10 .18 .25 .34 .44 .55 .69 .83 .99
C 1058 945 709 567 472 405 354 315 283 258 236 C 1058 1058 1058 897 747 641 560 498 448 408 374
D .02 .06 .11 .16 .23 .32 .42 .53 .65 .60 .93 D .01 .04 .08 .13 .19 .26 .35 .45 .55 .67 .80
U 1276 775 438 282 197 160 123 98 80 66 56 U 1276 1215 685 439 306 226 173 138 112 93 79
12” 4.8 MG123016 D .02 .07 .12 .20 .28 .45 .59 .75 .93 1.13 1.35 12” 5.2 MG124016
D .03 .06 .11 .17 .25 .34 .45 .51 .71 .86 1.03
C 638 638 638 638 591 559 492 440 398 365 337 C 638 638 638 638 638 638 638 619 560 512 472
D .01 .03 .07 .15 .23 .36 .47 .60 .74 .90 1.08 D .00 .01 .04 .08 .14 .21 .33 .46 .57 .69 .83
U 2275 1029 581 373 261 193 149 118 97 81 69 U 2275 1612 907 580 403 296 227 179 145 120 101
16 9” 4.1 MG93016
D .03 .07 .13 .21 .30 .41 .54 .69 .87 1.06 1.27 16 9” 4.6 MG94016
D .02 .06 .10 .16 .24 .37 .48 .60 .75 .91 1.07
C 851 851 851 700 587 506 446 400 363 333 309 C 851 851 851 851 851 777 680 604 544 495 453
D .01 .04 .11 .17 .24 .33 .44 .56 .69 .85 1.02 D .01 .02 .05 .10 .18 .29 .38 .49 .60 .73 .86
U 3418 1519 854 547 380 279 214 169 137 113 95 U 5118 2418 1360 870 604 444 340 269 218 180 151
6” 3.4 MG63016
D .03 .07 .12 .20 .28 .39 .50 .64 .79 .95 1.13 6” 3.9 MG64016
D .02 .06 .10 .16 .22 .30 .40 .51 .63 .76 .90
C 1134 1134 854 684 570 480 427 380 342 310 286 C 1134 1134 1134 1088 907 777 680 604 544 495 453
D .02 .05 .10 .15 .23 .31 .40 .51 .63 .76 .91 D .01 .03 .07 .12 .18 .25 .32 .41 .50 .60 .72
U 1461 950 536 345 241 178 137 109 89 74 63 U 1461 1448 814 521 362 266 204 161 131 109 92
12” 5.9 MG123014
D .02 .07 .13 .20 .29 .40 .53 .67 .84 1.02 1.23 12” 6.5 MG124014
D .01 .06 .10 .16 .24 .32 .42 .54 .67 .82 .98
C 730 730 730 730 722 622 548 491 446 409 379 C 730 730 730 730 730 730 730 724 655 599 554
D .01 .03 .07 .14 .23 .32 .42 .54 .67 .82 .98 D .00 .01 .04 .07 .12 .20 .30 .43 .54 .65 .78
U 2597 1477 831 532 369 271 208 164 133 110 92 U 2597 1988 1120 719 501 369 284 225 184 153 129
14 9” 5.1 MG93014
D .03 .09 .16 .25 .36 .48 .63 .79 .98 1.19 1.40 14 9” 5.6 MG94014
D .02 .06 .11 .17 .25 .34 .44 .57 .70 .85 1.02
C 974 974 974 974 831 712 623 554 498 453 415 C 974 974 974 974 974 969 852 761 688 629 581
D .01 .04 .10 .20 .28 .38 .50 .63 .78 .95 1.12 D .01 .02 .05 .10 .17 .27 .36 .45 .56 .68 .82
U 4984 2215 1246 797 554 407 311 246 199 165 138 U 5843 2895 1629 1042 724 532 407 322 261 215 181
D .04 .09 .15 .24 .34 .46 .60 .76 .94 1.14 1.35 D .03 .06 .12 .19 .28 .37 .48 .61 .75 .91 1.08
6” 4.3 MG63014 6” 4.8 MG64014
C 1461 1461 1246 997 831 712 623 554 498 453 415 C 1461 1461 1461 1303 1086 931 814 724 651 592 543
D .02 .06 .12 .19 .27 .36 .48 .61 .75 .91 1.08 D .01 .04 .09 .15 .21 .30 .39 .49 .60 .73 .87
NOTES: 1. THESE TABLES ARE PREPARED BASED ON TESTS CONDUCTED IN ACCORDANCE WITH THE 1980 EDITION, SECTION 6.2, OF THE AMERICAN IRON AND STEEL INSTITUTE SPECIFICATION FOR THE DESIGN OF COLD-ROLLED STEEL STRUCTURAL MEMBERS WITH
THE RESULTS CHECKED AND ADJUSTED WHERE REQUIRED BY CALCULATIONS IN ACCORDANCE WITH SECTION 2 OF THE SAME SPECIFICATION.
2. SYMBOLS ARE AS FOLLOWS: U = ALLOWABLE SIMPLE SPAN UNIFORM LOAD (LBS/FT ), C = ALLOWABLE SIMPLE SPAN CONCENTRATED LINE LOAD (LB.) AT MIDSPAN, D = VERTICAL DEFLECTION (IN.) AT MIDSPAN
3. SPANS TO THE LEFT OF THE HEAVY LINE PRODUCE DEFLECTION OF 1/4” OR LESS UNDER A UNIFORM LOAD OF 100 LBS. PER SQUARE FOOT.

SAFETY GRATING STAIR TREADS
A ll Safety Grating Products are excellent candidates for fabrication and installa-
tion as stair treads. The versatile walking surfaces offered by Grip Strut, Perf-O
Grip, Grate-Lock and Traction Tread offer products suitable for nearly all
applications. Stair treads are manufactured with welded end carrier plates which are
pre-punched with holes allowing the treads to be bolted to the stair stringers. In
many cases, the side margin of standard safety grating channels provides a defined
visible nosing line. Where increased visibility and safety are desired, specify the
products shown with supplementary cast abrasive, Traction Tread, or formed checker
plate nosings.
The load data below takes eccentric loads into consideration. Although load
values include allowances for normal impact conditions and unusual pedestrian
traffic, be sure to make provisions for special uses and loads involving unusual
impact or vibratory forces. Load carrying capacity of stair treads increases as channel
height and gauge of material increase.
S TA N D A R D G R I P S T R U T S TA I R T R E A D S
GRIP STRUT
G R I P S T R U T S T E E L S TA I R T R E A D L O A D TA B L E
2-DIAMOND 3-DIAMOND 4-DIAMOND 5-DIAMOND
CHANNEL 14 GA. 12 GA. 14 GA. 12 GA. 14 GA. 12 GA. 14 GA. 12 GA.
SPAN DEPTH -
IN. U C U C U C U C U C U C U C U C
2'-0" 1-1/2 1191 472 1576 624 761 443 1006 587 549 435 750 595 434 425 575 563
2 1978 783 2513 995 1262 737 1604 936 911 604 1158 917 721 573 916 897
2'-6" 1-1/2 764 378 1011 500 488 356 645 470 353 349 481 476 278 342 369 452
2 1268 611 1611 797 810 590 1029 750 584 578 742 734 463 566 587 719
3'-0" 1-1/2 532 315 703 418 340 300 450 393 245 300 335 398 194 300 258 378
2 882 524 1121 665 563 492 716 626 407 483 517 614 322 473 409 601
4'-0" (1) 2 498 394 633 501 318 373 404 472 230 364 292 463 182 356 232 454
A L U M I N U M & S TA I N L E S S S T E E L S TA I R T R E A D L O A D TA B L E
2-DIAMOND 3-DIAMOND 4-DIAMOND 4-DIAMOND 5-DIAMOND 5-DIAMOND
MATERIAL ALUMINUM ALUMINUM ALUMINUM STAINLESS ALUMINUM STAINLESS
GAUGE .080” .100” .080” .100” .080” .100” 304 316L .080” .100” 304 316L
CHANNEL
SPAN DEPTH - IN. U C U C U C U C U C U C U C U C U C U C U C U C
2'-0" 2 1328 526 1862 737 862 503 1208 705 607 481 867 687 610 483 525 416 396 388 607 595 394 386 338 331
2'-6" 2 850 420 1191 590 551 402 773 564 388 392 555 550 390 387 336 336 253 388 388 540 252 381 216 330
3'-0" 2 590 350 827 491 383 335 537 470 270 327 385 458 271 323 233 279 176 321 270 450 175 319 150 275
GRIP STRUT W/ 4'-0" (1) 2 332 263 465 369 215 252 302 353 152 245 216 344 152 244 131 210 99 241 151 338 98 241 84 221
GRIP STRUT CAST ABRASIVE (1) INTERMEDIATE STRINGER IS RECOMMENDED FOR SPANS OVER 4 FT.
7/16" O Hole 5/16" 1-3/4" X 7/16" Slot NOSING * AVAILABLE ON SPECIAL ORDER
U - UNIFORM LOAD (LB./SQ. FT.), C - CONCENTRATED LOAD (LB.)
HOW TO SPECIFY GRIP STRUT G R I P S T R U T S TA N D A R D S I Z E S &

C
B
S TA I R T R E A D S R E C O M M E N D E D S PA N S ( 1 )
27/32" STANDARD STAIR STAIR TREADS W/
D INDICATES INDICATES TREAD INDICATES TREAD STEEL TREADS ABRASIVE NOSING
A STAIR TREAD WIDTH IN DIAMONDS CHANNEL DEPTH
2, 3, 4, or 5 CHANNEL CATALOG CATALOG
SPAN IN. GAUGE SIZE IN. SIZE IN.
GRIP STRUT W/ CAST ABRASIVE NOSING DEPTH IN. NUMBER NUMBER
1-1/4" T-21514 2-Dia.–4-3/4 – –
1/4" X 1" UP TO 30 14 1-1/2 T-31514 3-Dia.–7 T-31514-N 3-Dia.–8-1/8
5/16" 1-3/4" X 7/16" Slot T-41514 4-Dia.–9-1/2 T-41514-N 4-Dia.–10-1/2
Tapping Screw T-51514 5-Dia.–11-3/4 – –
T-52012
T-21514 2-Dia.–4-3/4 – –
30 TO 36 14 1-1/2 T-31514 3-Dia.–7 T-31514-N 3-Dia.–8-1/8
T-41514 4-Dia.–9-1/2 T-41514-N 4-Dia.–10-1/2
C
T-51514 5-Dia.–11-3/4 – –
B
T-21514 2-Dia.–4-3/4 – –
7/16" O Hole 36 TO 42 14 1-1/2 T-31514 3-Dia.–7 T-31514-N 3-Dia.–8-1/8
T-41514 4-Dia.–9-1/2 T-41514-N 4-Dia.–10-1/2
T-51514 5-Dia.–11-3/4 – –
27/32" T-22014 2-Dia.–4-3/4 – –
D T-32014 3-Dia.–7 T-32014-N 3-Dia.–8-1/8
42 TO 48 14 2 T-42014 4-Dia.–9-1/2 T-42014-N 4-Dia.–10-1/2
A INDICATES MATERIAL GAUGE INDICATES TYPE OF MATERIAL T-52014 5-Dia.–11-3/4 – –
14 or 12 steel, 12 or 10 Blank for pre-galvanized steel. ALUMINUM
GRIP STRUT CARRIER PLATE SPECIFICATIONS aluminum, or 16 ga. "B" for HRPO steel. T-22012-A 2-Dia.–4-3/4 – –
STANDARD W/ ABRASIVE NOSING stainless steel. "A" for aluminum T-32012-A 3-Dia.–7 T-32012-A-N 3-Dia.–8-1/8
UP TO 42 .080” 2 T-42012-A 4-Dia.–9-1/2 T-42012-A-N 4-Dia.–10-1/2
A B C D A B C D "S" for 304 stainless steel T-52012-A 5-Dia.–11-3/4 – –
4-3/4” 1-1/2” 3/4” 2-5/8” "SL" for 316 stainless steel T-22010-A* 2-Dia.–4-3/4 – –
– – – – UP TO 48 .100” 2 T-32010-A* 3-Dia.–7 T-32010-A-N* 3-Dia.–8-1/8
(2-Dia.) 2” 1” 2-5/8” T-42010-A* 4-Dia.–9-1/2 T-42010-A-N* 4-Dia.–10-1/2
7” 1-1/2” 3/4” 3-3/8” 8-1/8” 1-1/2” 3/4” 4-1/2” T-52010-A* 5-Dia.–11-3/4 – –
(3-Dia.) 2” 1” 3-3/8” (3-Dia.) 2” 1” 4-1/2” GRIP STRUT TREADS WITH CAST ABRASIVE NOSING STAINLESS STEEL
9-1/2” 1-1/2” 3/4” 5-7/8” 10-1/2” 1-1/2” 3/4” 6-7/8” FOR TREADS WITH CAST ABRASIVE NOSINGS, SIMPLY ADD THE SUFFIX TYPE 316L
2 T-42016-SL 4-Dia.–9-1/2 – –
(4-Dia.) 2” 1” 5-7/8” (4-Dia.) 2” 1” 6-7/8” UP TO 30 16 GA. T-52016-SL 5-Dia.–11-3/4 – –
"–N" TO THE ABOVE CATALOG NUMBERS. EXAMPLES:
TYPE 304L T-42016-S 4-Dia.–9-1/2 – –
11-3/4” 1-1/2” 3/4” 8-1/8”
– – – – T-42012-N T-41514-B-N UP TO 36 16 GA. 2 T-52016-S 5-Dia.–11-3/4 – –
(5-Dia.) 2” 1” 8-1/8”
(1) RECOMMENDATIONS ARE BASED ON APPROX. MIN. LOADS OF 300 LB. UNIFORM.
(1) STAINLESS STEEL NOT AVAILABLE IN 2 AND 3-DIAMOND WIDTHS SPECIFIC PERFORMANCE CRITERIA MAY VARY BY MUNICIPALITY/BUILDING CODE
BODY AND SHOULD BE LOCALLY CHECKED PRIOR TO FINALIZING SPECIFICATIONS.
*AVAILABLE ON SPECIAL ORDER
H E A V Y D U T Y G R I P S T R U T S TA I R T R E A D S
7/16" O Hole 1-3/4" X 7/16" Slot G R I P S T R U T H E A V Y D U T Y S TA I R

T R E A D L O A D TA B L E *
STAIR TREAD SPAN
MATERIAL/ CHANNEL WEIGHT CATALOG
2’-0” 2’-6” 3’-0” 4’-0”
1"
GAUGE DEPTH - IN. (LB./FT.) NO.

2
2"
STEEL U 2412 1544 1026 629

10 GA. 7.4 HT-22010
2 C 1860 1487 1240 929
ALUMINUM 2 U 1463 934 651 364
HEAVY .150” 2 2.6 HT-220-15A
C 1127 902 751 564
DUTY GRIP 27/32"
+ 5-7/8" * MAXIMUM ALLOWABLE TREAD LOADS.
STRUT – 1/32"
9-1/4" U - UNIFORM LOAD (LB./SQ. FT.), C - CONCENTRATED LOAD (LB.)
31
SAFETY GRATING STAIR TREADS
P E R F - O G R I P ® & T R A C T I O N T R E A D ™ S TA I R T R E A D S
PERF-O GRIP RECOMMENDED SIZES & SPANS
MATERIAL/ CHANNEL CATALOG
SPAN IN. WIDTH
GAUGE DEPTH IN. NUMBER
T-P21513 5”
UP TO 30” STEEL 1-1/2 T-P31513 7”
13 GA. T-P51513 10”
T-P61513 12”
PERF-O GRIP PERF-O GRIP W/ TRACTION TRACTION TREAD T-P22011 5”
TREAD NOSING 31 TO 48* STEEL 2 T-P32011 7”
11 GA. T-P52011 10”
T-P62011 12”
PERF-O GRIP & TRACTION TREAD T-P220.125-A 5”
A C A R R I E R P L AT E S P E C I F I C AT I O N S ALUM T-P320.125-A 7”
UP TO 42* 2
.125 T-P520.125-A 10”
TREAD WIDTH DEPTH DIMENSION DIMENSION T-P620.125-A 12”
27/32" D A B C D
+
– 1/32"
5” * 1-1/2” 3/4” 2” TRACTION TREAD RECOMMENDED SIZES & SPANS
2” 1”
MATERIAL/ CHANNEL CATALOG
C
1-1/2” 3/4” SPAN IN. WIDTH

7” 4” GAUGE DEPTH IN. NUMBER
2” 1”
B
STEEL TT-72013-T 7”
10” 1-1/2” 3/4” 7” UP TO 30” 2 TT-102013-T 10”
13 GA. TT-122013-T 12”
2” 1”
STEEL T-72011-T 7”
7/16" Dia. Typ. 1-1/2” 3/4” 31 TO 48* 2 T-102011-T 10”
12” 9” 11 GA.
7/16" X 1-3/4" Slot 2” 1” T-122011-T 12”
* PERF-O GRIP STAIR TREAD ONLY. * INTERMEDIATE SUPPORTS RECOMMENDED FOR ALL TREADS SPANNING GREATER
THAN 48 INCHES (42 INCHES FOIL ALUMINUM TREADS)
G R AT E - L O C K S TA I R T R E A D S
A
6", 9", 12"
F
2" D 2"
GRATE-LOCK GRATE-LOCK W/
13/16" CHECKER PLATE NOSING
GRATE–LOCK STAIR TREAD LOAD TABLE GRATE–LOCK CARRIER PLATE SPECIFICATIONS

1-1/8"
G
SPAN A D F G
CATALOG NO.
CATALOG NO. TREAD WIDTH DIMENSION DIMENSION DIMENSION
2’-0” 2’-6” 3’-0” 4’-0”*
7/16"
FOR STAIR TREADS WITHOUT NOSING

T-MG62514
U 3722 2382 1654 931
C 1461 1168 1241 931 T-MG62514 6” 2” 2” 1-1/8”
T-MG92514 9” 5” 2” 1-1/8”
T-MG92514
U 2357 1508 1050 593 T-MG122514 12” 8” 2” 1-1/8”
C 974 974 974 889
FOR STAIR TREADS WITH NOSING
7/16" Dia. Carrier Plate T-MG122514
U 1276 816 783 442
C 730 730 730 730 TN-MG62514 7-1/2” 4-1/2” 2-1/2” 1-1/8”
TN-MG92514 10-1/2” 7” 2-1/2” 1-1/8”
* INTERMEDIATE STRINGER RECOMMENDED FOR SPANS OVER 48 INCHES. TN-MG122514 13-1/2” 7” 2-1/2” 1-1/8”
SPECIFY “MS” IN LIEU OF “MG” FOR SMOOTH SURFACE STAIR TREADS
SAFETY GRATING LADDER RUNGS

GRIP STRUT LADDER RUNGS TRACTION TREAD LADDER RUNGS M AT E R I A L S
• 13 GA. HRPO CARBON STEEL
STOCK LENGTHS – • 13 GA. PRE-GALVANIZED
10'-0" 1-1/4" • .125 5052 – H-32 ALUMINUM
• STOCK LENGTHS 60” (OR CUT TO LENGTH)
1-1/2"
2 ROW
1-1/8" STOCK LIST
WIDTH CATALOG NO. WEIGHT/LF
HRPO CARBON STEEL
1-1/4” (2 ROW) LR-213-B 1.2
2-1/2" 1-5/8"
1-5/8” (3 ROW) LR-313-B 1.3
• 14 GA. PRE-GALVANIZED 2-1/4” (4 ROW) LR-413-B 1.5
• HRPO STEEL PRE-GALVANIZED STEEL
1-1/8"
3 ROW
• WEIGHT 1.13 LBS./FT. 1-1/4” (2 ROW) LR-213 1.2
• CATALOG NO. 11014 1-5/8” (3 ROW) LR-313 1.3
2-1/4” (4 ROW LR-413 1.5
ALUMINUM ALLOY 5052 – H-32
L O A D D ATA – S A F E T Y F A C T O R 1 . 5 1-1/4” (2 ROW) LR-2125-A 0.5
2-1/4"
SPAN 1-5/8” (3 ROW LR-3125-A 0.5
16” 18” 20” 24” 30” 36” 2-1/4” (4 ROW) LR-4125-A 0.7
C 528 469 422 352 281 234 304 STAINLESS STEEL
1-1/2"
D .058 .074 .092 .132 .206 .297

1-5/8” (3 ROW) LR-316-S 1.0
C – CONCENTRATED LOAD (LB.), D – DEFLECTION (IN.) 2-1/4” (4 ROW) LR-416-S 1.1
VALUES ARE BASED ON CONCENTRATED LOAD PLACED AT MID-SPAN 4 ROW

SAFETY GRATING WALKWAY CHANNELS
G RIP STRUT® and PERF-O GRIP® Safety Grating

Walkway Channels are one-piece modules
manufactured with integral side toe boards projecting
above the walking surface of the flooring. Ideal for elevated
applications such as suspended walkways or conveyor
catwalks, these channels provide safe, economical, slip
resistant options for long span walkways. Continuous spans
can be accommodated by welding adjacent planks or
specifying splice plates as illustrated below.
S TA N D A R D G R I P S T R U T W A L K W AY
STOCK LENGTHS –
10'-0" & 12'-0" 1" 24" +
– 1/16"
– 1/16"
TOEBOARDS –
4-1/2" Depth +
1-1/8"
4-1/2"
9/16"
11/16"
5/16" O
90 +– 2-1/2"
5/8"
1
21/32" 1-7/8" 7/16" 7/16" 1-7/8" 21/32"
10 DIAMOND –
24" Wide
1 0 - D I A M O N D W A L K W AY L O A D TA B L E – 2 4 ” W I D T H
MATERIAL WEIGHT CATALOG SPAN
GAUGE LB./FT. NUMBER 2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 6'-0" 7'-0" 8'-0" 9'-0" 10'-0" 11'-0" 12'-0"
STRUT LOADING 2-1 U 300 300 300 300 300 263 213 148 109 83 66 53 43
STEEL 8.9 3 104514-U D .41 .41 .42 .45 .48 .47 .42 .40 .43 .47 .55 .64 .75
MATERIAL GAUGE TYPE LOADING* LOAD DEFLECTION IN. 14 GA. C 400 400 400 400 400 400 400 400 380 333 296 266 242
STEEL D .32 .33 .33 .33 .34 .35 .36 .39 .42 .41 .42 .44 .47
U 300 .49
14 GA. Cs 300 .40 U 475 475 475 475 475 420 340 236 173 133 105 85 70 59
STEEL 12.5 104512-U D .37 .37 .38 .40 .43 .43 .39 .37 .39 .44 .51 .59 .69 .80
STEEL U 475 .45 C 900 900 900 900 900 900 850 709 607 531 472 425 387 354
12 GA. Cs 475 .36
12 GA.
D .34 .34 .35 .35 .36 .37 .37 .34 .33 .33 .35 .37 .40 .44
H E A V Y D U T Y G R I P S T R U T W A L K W AY
1-1/4"
STOCK LENGTHS – 1-1/4" 36", 30", 24"
Up to 24'-0"
2"
1"
5" Depth
17/32" (36")
1-31/32" (30")
TOEBOARDS– 1-3/16" (24")
5" 21/32"
1-5/16"
3-7/8" 9/16" 3-7/8"
8 DIAMOND –
36" Wide H E A V Y D U T Y W A L K W AY L O A D TA B L E – 2 4 ” , 3 0 ” , & 3 6 ” W I D T H S
6 DIAMOND – MATERIAL WIDTH CHANNEL WEIGHT CATALOG SPAN
30" Wide GAUGE DEPTH IN. LB./FT. NUMBER
5 DIAMOND – 4'-0" 5'-0" 6'-0" 7'-0" 8'-0" 9'-0" 10'-0" 11'-0" 12'-0" 14'-0" 15'-0" 16'-0" 18'-0" 20'-0"
24" Wide U 937 600 417 306 234 185 150 124 104 77 67 59 46 38
24” 5 D
17.5 H-55010-W C .38 .39 .42 .38 .38 .38 .39 .47 .56 .77 .88 1.01 1.26 1.59
3750 3000 2500 2143 1875 1667 1500 1364 1250 1071 1000 938 833 750
STRUT LOADING D .30 .31 .34 .31 .30 .30 .31 .38 .45 .61 .70 .80 1.01 1.25
UNIFORM (U) CONCENTRATED (Cs) U 916 586 407 299 229 182 146 121 102 75 65 57 45 36
MATERIAL, STEEL H-65010- D .37 .43 .40 .40 .46 .42 .41 .41 .49 .66 .75 .86 1.09 1.33
GAUGE, WIDTH SERRATED NON-SERR. SERRATED NON-SERR. 30” 5 19.9 W C 4584 3666 3056 2619 2291 2037 1834 1667 1528 1309 1222 1146 1019 916
10 GA.
D .30 .34 .32 .32 .37 .34 .33 .33 .39 .53 .61 .69 .87 1.08
5-D 24” 912 1048 912 1048
STEEL 10 GA. .11 .10 .08 .07 U 556 356 247 181 139 110 89 73 62 45 39 35 27 22
6-D 30” 36” 5 22.7 H-85010- D .39 .39 .33 .32 .33 .36 .39 .42 .51 .69 .79 .91 1.15 1.40
494 563 618 704
STEEL 10 GA. .14 .13 .11 .10
W C 3330 2667 2222 1905 1667 1481 1333 1212 1111 952 889 833 741 667
D .31 .31 .26 .26 .26 .29 .31 .34 .41 .55 .64 .72 .92 1.13
8-D 36” 343 391 515 587 U 633 405 281 207 158 125 101 84 70
STEEL 10 GA. .20 .19 .16 .15 ALUM H-650-W D .31 .35 .40 .49 .58 .67 .77 .86 1.02
30” ALUM. 590 590 679 679 30” 5 8.4 .150-A C 3163 2530 2108 1807 1581 1406 1265 1150 1054
.150
.150 .75 .75 .60 .60 D .25 .28 .32 .39 .47 .54 .61 .69 .82
11 GA. & 9 GA. AVAILALBLE BY SPECIAL ORDER
P E R F - O G R I P ® W A L K W AY
STOCK LENGTHS – P E R F - O G R I P W A L K W AY L O A D TA B L E – 2 4 ” & 3 0 ” W I D T H S
10'-0" & 12'-0" SPAN
PLANK WEIGHT DEPTH CATALOG
MATERIAL LB./FT. INCHES NUMBER 2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 6'-0" 7'-0" 8'-0" 9'-0" 10'-0" 11'-0" 12'-0"
STEEL U 5751 3681 2556 1878 1438 1136 920 639 469 359 284 230 190 160
11 GA. 11.8 5 D
P135011W C .02 .02 .04 .05 .06 .08 .10 .14 .19 .25 .31 .39 .47 .56
TOEBOARDS – 24” WIDE
9504 7604 6336 5431 4752 4224 3802 3168 2715 2376 2112 1901 1728 1584
5" D .01 .01 .02 .03 .04 .05 .06 .08 .11 .15 .19 .23 .28 .34
STEEL U 3868 2475 1719 1263 967 764 619 430 316 242 191 155 128 107
D .01 .02 .03 .04 .05 .06 .08 .12 .16 .20 .26 .32 .39 .46
11 GA. 13.6 5 P165011W C 9534 7627 6356 5448 4767 4237 3813 3178 2724 2383 2119 1907 1733 1589
30” WIDE D .01 .01 .02 .03 .04 .05 .06 .08 .11 .15 .19 .23 .28 .33
16 HOLE– 1" Nominal

3-3/8" 1-5/16"
1"
30" Wide
5" +
13 HOLE –
– 1
3/32" 7/16"
24" Wide
S P L I C E P L AT E S
GRIP STRUT SPLICE PLATE PACKAGE-7 IN. GRIP STRUT SPLICE PLATE KIT-30 IN.
Package (Catalog No. SP-1ODU-7) includes: GRIP Package (Catalog No. SP-10DU-30) includes: GRIP STRUT Grating
STRUT Grating cut to length if required, four 1/2” dia. cut to length if required, four 9/16” dia. holes staggered in each
holes in each corner of up-turned kickplate, two 8-hole corner of up-turned kick-plate, two 8-hole, 12 ga. 4-1/2” x 30”
10 ga. 4” x 7” splice plates, with 16 ea. 7/16” x 1-1/4” C-channel splice plates with 16 ea. 1/2” x 1-1/4” hex head
bolts, washers and hex nuts. Kit joins continuous cap screws (galv. S.A.F. Grade Slightly oiled), washers
sections together in a run only over supports. and hex nuts. Kit joins continuous sections together
Recommended bolt torque: 55 ft./lb. min. in run over clear spans to act as one continuous
NOTE: FOR HEAVY DUTY AND
unit. Any combination of 12 and 10 ft. PERF-O GRIP SPLICE PLATES,
Recommended bolt torque: 72 ft./lb/min. CONTACT INDIANA GRATINGS
33
TRACTION TREAD™ FLOORING
T RACTION TREADTM Flooring features a surface with

hundreds of perforated buttons that provide slip-
resistance in all directions making it a practical choice for
ramps, stair treads and equipment platforms. TRACTION
TREADTM is ideal for the manufacture of special and
fabricated products, and is often used as reconditioning
industrial applications. TRACTION TREADTM is also material over existing surfaces that do not provide slip-
appropriate for commercial applications where pedestrian resistance.
traffic is a consideration, perfectly suited for ADA- TRACTION TREADTM Flooring is readily available in 3’-
compliant requirements. 0” x 10’-0” stock sheets designed for secondary fabrication
TRACTION TREADTM is easily adapted for a requirements.
multitude of applications, offering a safe
walking-working surface for walkways,
M AT E R I A L S O P T I O N S
• 11, 13 OR 16 GA. HOT ROLLED. PICKLED AND
OILED CARBON STEEL:
• 11, 13 OR 16 GA. PRE-GALVANIZED CARBON
STEEL
• .125 ALUMINUM ALLOY 5052-H32:
SHEET SIZE
3/8" Dia.
• STANDARD 36” X 120”
1/8" Dia. Hole • CUT TO ORDER
3/32" STOCK LIST

THICKNESS CATALOG NO. WEIGHT/SF
BUTTON
DETAIL HRPO CARBON STEEL
11 GA. TT-3611-B 5.0
1/8" R 13 GA. TT-3613-B 3.8
TRACTION TREADTM IS AVAILBLE AS SHOWN ABOVE AS A STANDARD PRODUCT, HOWEVER, VARIATIONS TO THE SURFACE DESIGN CAN BE 16 GA. TT-3616-B 2.5
PRODUCED ACCORDING TO YOUR REQUIREMENT (SEE EXAMPLES ILLUSTRATED BELOW). PRE-GALVANIZED STEEL
11 GA. TT-3611 5.0
13 GA. TT-3613 3.8
16 GA. TT-3616 2.5
ALUMINUM ALLOY 5052 – H-32
.125 TT-36.125-A 1.6
304 STAINLESS STEEL
16 GA. TT-3616-S 2.7
STAR PATTERN IN-LINE PATTERN CHEVRON PATTERN
GRIP STRUT® RESURFACING PRODUCTS

G R I P S T R U T ® R E C O N D I T I O N I N G M AT E R I A L F L AT S T O C K G R I P S T R U T ®
10'-3/8" or 12'-0"
Length
7/16"
1-1/8"
9/16"
11/16"
1/2" 1-7/8" 1-7/8" 1/2"

Typ. Typ.
W2 +
– 1/16" FLAT STOCK AVAILABLE IN ALL
8"
5/ p.
5/16"
W1
5/8"
Ty STANDARD MATERIALS AND SIZES

Here’s the safety first way to re-do worn and unsafe The open matrix is symmetrical about the flat plane.
floors and stairs. Resurface with non-slip GRIP STRUT 30 0 Table (below) indicates the a pproxima te dimensions of
Safety Grating Reconditioning Material (RM). GRIP STRUT +
– 2-1/2" Thickness flat metal available on each side. Flat Stock can also be
Typ. manufactured to specified dimensions of flat metal on
Grating is the only product that gives wall-to-wall teeth
per sq. ft. Serrated, diamond-shaped openings make GRIP THICKNESS: either or both sides. Consult Indiana Gratings for
STRUT Grating 10 to 180% safer than conventional • STEEL: 14 GA. & 12 GA. specifications and availability.
gratings – permits mud, oil, grease, and industrial waste to • ALUM: .080” (12 GA.), .100 (10 GA.)
• STAINLESS STEEL: 16 GA. (4 OR 5 DIAMOND ONLY)
fall through when used over open floor material such as DIMENSIONS – STEEL & ALUMINUM
bar grating. Even ice shears free under normal foot
DIMENSIONS – STEEL & ALUMINUM MATRIX FLAT METAL EACH SIDE
pressure. Down-turned edges allow grating to lie flat and
DIAMONDS 2-DIAMOND 2-1/4” to 7-1/2”
secure over existing flooring. Consult Indiana Gratings for
3-DIAMOND 2-3/8” to 6-1/2”
product specifications. DIMENSION 1 2 3 4 5 8 10
4-DIAMOND 2-3/8” to 7-5/8”
Other important GRIP STRUT Grating advantages
W1 2-7/8” 5-3/16” 7-/12” 9-13/16” 12-1/8” 19-1/16” 23-11/16” 5-DIAMOND 2-3/8” to 6-1/2”
include: easy field fabrication and fast, low-cost
W2 3-5/16” 6-1/4” 8-9/16” 10-7/8” 13-3/16” 20-1/8” 24-3/4” 8-DIAMOND 2-3/8” to 5-5/8”
installation. RM products available on special order in
NOTE: FOR SPECIFICATIONS & TOLERANCE NOT INDICATED, SEE GRIP STRUT SECTION ON PAGE 20. 10-DIAMOND 3-1/4” to 7-5/8”
standard material and sizes.

FIBERGLASS GRATING
C ombining unmatched corrosion resistance with

strength, long life and safety, fiberglass grating is
proven to deliver years of reliable service, even in the
most demanding environments. Indiana Gratings offers
two types of quality fiberglass grating distinguised by their inherent
method of construction. These gratings are classified as resiliency
molded products and pultruded products. Molded grating of fiberglass
(illustrated on pages 35-38) is unmatched in its ability to grating can also
withstand the effects of corrosion and is highly impact increase worker
resistant. Pultruded grating (illustrated on pages 39-41) productivity by greatly
provides reliable corrosion resistance and higher load lessening back and
bearing characteristics. leg fatigue.
CHARACTERISTICS – Molded and pultruded fiberglass APPLICATIONS – The unique
gratings are often superior to conventional metallic features inherent in fiberglass gratings
gratings when installed in highly corrosive environments. make these products ideal candidates in
Fiberglass grating can be fabricated with simple hand the most demanding industrial applications.
tools, is light in weight, and is easy to install. For Chemical processing, refining, offshore, pulp
and paper, food and beverage, marine (including
enhanced worker safety, fiberglass grating is slip-resistant,
military vessels), water and wastewater treatment,
MOLDED GRATING
non-conductive, and is available with flame spread ratings
unsurpassed by any competitive product. In-line with the electronics and plating are just some of the applications
growth of ergonomics as a factor in facility planning, the where the performance of fiberglass grating
has proven superior.
RESIN SYSTEMS
The resin systems used in fiberglass grating provide
superior resistance to the effects of corrosion and
ultraviolet exposure. Uniquely formulated resin
systems are also responsible for the grating’s fire
retardant characteristics.
Because various applications present different
performance requirements, Indiana Gratings offers a
number of standard resin systems, each offering unique
properties. For maximum versatility and selection,
molded grating is stocked in five resin systems, the most
extensive selection in the industry. Pultruded grating is
offered in two resin formulations, in order to best match
the requirements of the specific application.
UNDERWRITER’S
L A B O R AT O R Y C L A S S I F I E D
In keeping with its quality role, only Fibergrate
Fiberglass Gratings are classified by Underwriters
Laboratory for meeting established standards for chemical
exposure, flame spread, load-bearing characteristics and
slip-resistance. This
certification by an
independent third party
provides the user a strong
sense of security knowing
that Fibergrate meets
established performance
PULTRUDED GRATING
specifications. No other
manufacturer of fiberglass
grating can make that claim!
F I B E R G L A S S G R AT I N G S E L E C T I O N
MOLDED GRATINGS
PULTRUDED
CHARACTERISTICS 1” RECTANGULAR 1”, 1-1/2” & 2” GRATING
MESH SQUARE MESH
CORROSIVE RESISTANCE + + –
STRENGTH/STIFFNESS (LONGEST SPAN) – – +
IMPACT RESISTANCE – +
OPEN AREA (FOR DRAINAGE, AERATION, LIGHT PENETRATION) + + –
SINGLE-DIRECTION SPAN – +
BI-DIRECTION SPAN +
EASE OF LAYOUT AND INSTALLATION +
LIGHTWEIGHT IN COMPARISON TO METALS + + +
CUSTOM PANEL SIZES AVAILABLE – – +
+ HIGHLY RECOMMENDED – RECOMMENDED NOT RECOMMENDED

THESE ARE GENERAL COMPARISONS. A INDIANA GRATINGS REPRESENTATIVE SHOULD BE CONSULTED FOR AN EXACT MATCH OF
GRATING AND APPLICATION.
35
FIBERGLASS GRATING
C O V E R E D G R AT I N G G R AT I N G L E G S M U LT I G R I D S C R E E N I N G
Covered molded fiberglass grating includes an integral Specially designed legs for 1-1/2” deep, square mesh A multi-purpose lightweight fiberglass screen, 1/2”
1/8” grit surface fiberglass plate molded to the top of any molded grating are manufactured to provide sturdy thick Multigrid® can be used for a wide range of
molded grating panel. Covered grating offers a strong, support for elevated flooring. All fixed-height and industrial, commercial and institutional applications
level surface for foot or cart traffic and provides higher adjustable legs support flooring for heights up to 60 including anti-skid flooring, machinery guards, fencing,
stiffness values than that of open mesh grating. Type”W” inches. (Cross bracing is required for flooring elevated space dividers in factories and warehouses and cages for
hold down fasteners are recommended to secure covered more than 24 inches.) Available grating legs include: tools, equipment and animals. Corrosion-resistant
grating panels to structural supports in order to eliminate (A) FIXED-HEIGHT LEGS W/ SINGLE HEAD – For supporting Multigrid® is available with a 2” square mesh pattern in 4’
potential warping of the plate. Smooth surface fiberglass grating up to 60” above level concrete floor. x 12’ panels (15’ is available on special request). Resin
plate is optional. (B) FIXED-HEIGHT LEGS W/ DOUBLE HEADS – For connecting system options include ViCorr, IFR, FGI (for food service
adjoining panels. areas) and Corvex. Standard colors, which correspond to
(C) ADJUSTABLE-HEIGHT MINI LEGS – For raising grating the resin system, include orange, green, light gray and
2-3/4” to 9” above uneven concrete floor. yellow.
(D) ADJUSTABLE-HEIGHT LEGS W/ SINGLE HEAD – For uneven
floors designed to be screw-adjusted from atop the
elevated floor.
(E) ADJUSTABLE-HEIGHT LEGS W/ DOUBLE HEADS – For
joining and supporting panels above non-level
concrete floor.
For details on specifying height, spacing and
placement, contact Indiana Gratings and request
Fibergrate bulletin #300.
FRP CONCRETE CURB ANGLE

"b"
Pultruded fiberglass
reinforced plastic (FRP) 1/4"
embedment curb angle provides
a secure and durable seat for "d"
grating over concrete trenches
and pits. Manufactured from
corrosion resistant, gray vinyl
ester, fire retardant resin, curb "
/4
angles are pultruded with a 1-1
built-in continuous anchor that securely locks the angle
into the concrete pour.
FRP CONCRETE CURB ANGLE

CATALOG
GRATING DEPTH “d” DIMENSION “b” DIMENSION
NUMBER
1” CA-1015 1” 1-1/2”
1-1/2” CA-1515 1-1/2” 1-1/2”
2” CA-2015 2” 1-1/2”
F I B E R P L AT E SEALING KITS
FiberPlate sets the standard for high performance To maintain corrosion resistance and structural
structural panel. A rugged fiberglass structural plate with a integrity, all exposed ends of fiberglass grating or
molded-in, grit top surface, FiberPlate is designed for use components should be resin sealed after cutting. Indiana
in applications where durability and Gratings offers premium vinyl ester resin sealing kits for
long, maintenance-free life is critical. its full range of grating products.
As a flooring, FiberPlate is usually
installed over structural members, or
over existing grating, to provide a
solid walkway or to extend the life of
a high traffic area. FiberPlate can also
be bolted directly to structural beams
and used as a wall panel that is
resistant to corrosive splash. FiberPlate
is manufactured from the same wide
range of resins and colors as our molded grating products
line. Available plate thickness is 1/8”, 1/4”. 3/8”, 1/2” and
3/4” and plate sizes range from 3’-0” x 10’-0” to
4’-0” x 12’-0”. Cut to size pieces are similarly available.

MOLDED FIBERGLASS GRATING
M olded Fiberglass Grating is designed to provide the

ultimate in reliable performance, even in the
most demanding conditions. This advanced grating is
Molded Fiberglass Grating is easy to
install. The square mesh pattern of
molded grating allows efficient
proven superior in applications requiring bidirectional cutting of the panels so that a
strength, corrosion resistance and long, maintenance-free variety of flooring layouts can be
life. Available in either standard concave or optional grit- accommodated with a minimum
top walking surfaces, Molded Fiberglass Grating offers of grating waste. Rectangular mesh
outstanding skid-resistance for added worker safety. molded is often used for walkways
Molded grating is available in either square or and trench covers in many
rectangular mesh, providing optimal customer selection. industrial applications.
A premium product, molded grating combines fiberglass
rovings with thermosetting resin to form a strong, one
piece molded panel. Significantly lighter than metallics,
C H A R A C T E R I S T I C S O F M O L D E D G R AT I N G SPECIALLY FORMULATED RESIN

MIXTURES ARE COMBINED WITH
• CORROSION RESISTANT • UV RESISTANT CONTINUOUS FIBERGLASS STRANDS,
OR ROVINGS, IN MANUFACTURING HIGH
• IMPACT RESISTANT • NON CONDUCTIVE
PERFORMANCE MOLDED GRATING.
• MAINTENANCE FREE • EASY TO INSTALL
• LIGHTWEIGHT • EASY TO FABRICATE
• SKID RESISTANT • UL CLASSIFIED
• LONG SERVICE LIFE
M O L D E D G R AT I N G R E S I N S Y S T E M S
Indiana Gratings offers its Fibergrate Molded Grating line in a choice of five
resin systems, assuring a resin system suited to the unique requirements of each
customer application.
ViCORR (ORANGE OR GRAY) – A superior resin available only from Fibergrate, ViCorr
was developed for reliable performance in the toughest environments. This
proprietary resin system formulation is the most chemically-resistant available today,
offering outstanding resistance to a wide range of highly corrosive environments,
ranging from caustic to acidic. In fact, no other resin system can match ViCorr’s
performance in highly acidic environments. Offers an ASTM E-84 flame spread rating
of 15 or less. ViCorr is also a va ilable in a UL Cla ssified resin formulation.
IFR (GREEN) – IFR is designed for industrial and chemical processing applications
where corrosion resistance is important. This isophthalic polyester resin formulation
offers a flame spread rating of 20 or less per ASTM E-84. IF R is a lso a va ila ble in a
UL Cla ssified resin formula tion.
XFR (GRAY) – This highly corrosion resistant resin is recommended for use where
fire potential is high. This proprietary resin carries a flame spread rating of 10 or less,
a level exceeded by no other resin system.
FGI (LIGHT GRAY) – USDA-accepted for food processing applications, this isophthalic
polyester resin system meets the unique requirements of the food and beverage S T O C K PA N E L S I Z E S
industry. FGI carries a flame spread rating of 20 or less.
1” DEEP 1” DEEP 1-1/2” DEEP 2” DEEP
CORVEX (YELLOW, GREEN OR GRAY) – An economical polyester grating, Corvex RECTANGULAR MESH SQUARE MESH SQUARE MESH SQUARE MESH
outperforms a number of competitive fiberglass products and meets the requirements
3’-0” x 10’-0” 3’-0” x 10’-0” 3’-0” x 10’-0” 4’-0” x 12’-0”
for corrosion resistance found in light industrial and water/wastewater applications.
4’-0” x 8’-0” 4’-0” x 8’-0” 4’-0” x 8’-0”
This grating also offers a low flame spread rating of 25 or less. 4’-0” x 12’-0” 4’-0” x 12’-0”
For assistance in selecting the resin most appropriate for your environment, 5’-0 x 10’-0”
consult the Chemica l Resista nce Guide on page 42 of this catalog.
ALL MATERIAL IS READILY AVAILABLE CUT TO SIZE WITH ENDS PROPERLY RESIN SEALED.
H O W T O S P E C I F Y M O L D E D G R AT I N G
Fiberglass Grating shall be one piece construction, Fibergrate Molded Fiberglass by Indiana Gratings, 212 W. Douglas St. Martinsville, IN 46151, (800)
1-1/2" deep (1”, 1-1/2” or 2”) , _____________
321-4314. Molded grating shall be fire retardant, ___________ SQUARE mesh (square or recta ngular for 1” deep, squa re for
1-1/2” or 2” deep) , manufactured with ______________________________
ViCORR PREMIUM VINYL ESTER resin (ViCorr Premium Vinyl Ester, IFR Isophtalic Polyester, XFR, FGI
CONCAVE
Isophtalic Polyester or Convex Polyester) . Grating shall be supplied with ________________ (sta ndard concave or optional grit surface) skid-resistant
walking surface. All cut or sanded surfaces shall be sealed with resin prior to installation. Grating shall be fastened to supporting structure with type
“M”
____________ fasteners (see below).
C L I P A S S E M B L I E S F O R M O L D E D G R AT I N G
Indiana Gratings offers specially designed attachments and clips, both to fasten
panels together and to secure them to support structures. All clips are made of Type 316
Stainless Steel and are available in 1”, 1-1/2” and 2” sizes.
TYPE M HOLD DOWN CLIPS – Used to secure panels to a support using two adjacent
grating bars for a secure fit.
TYPE J HOLD DOWN CLIPS – For use in securing grating panels to support frames.
TYPE G HOLD DOWN CLIPS – Designed to attach grating to any structural member flange,
3/4” or smaller in thickness, with no drilling required.
TYPE F END PANEL CLIP – Provides a simplified method for joining side bars of panels
that are butted end to end.
TYPE W – Designed to secure covered grating or FiberPlate to a structure. TYPE M TYPE J TYPE G TYPE F TYPE W
37
MOLDED GRATING LOAD TABLES
THE FOLLOWING LOAD TABLES WERE DEVELOPED IN STRICT CONFORMANCE WITH THE FIBERGLASS LOAD/DEFLECTION CRITERIA PRESENTED ON PAGE 41 OF THIS CATALOG. U – UNIFORM IN LBS. PER SQ. FT.,
C – CONCENTRATED LINE LOAD IN LBS. PER FT. OF WIDTH, P – CONCENTRATED POINT LOAD-LBS., ΔU – UNIFORM LOAD DEFLECTION IN INCHES, ΔC – CONCENTRATED LINE LOAD DEFLECTION IN INCHES,
ΔP – CONCENTRATED POINT LOAD DEFELECTION IN INCHES.
1 ” D E E P R E C TA N G U L A R M E S H 1” DEEP SQUARE MESH

1" 1” DEEP, 1” X 4” RECTANGULAR MESH 1-1/2" 1” DEEP, 1-1/2” X 1-1/2” SQUARE MESH
LOAD BAR CROSS BAR LOAD BAR CROSS BAR

WIDTH CENTERS WIDTH CENTERS
1/4” ± 4” 1/4” ± 1-1/2”
1-1/2"
4"
LOAD BAR OPEN LOAD BAR OPEN
CENTERS AREA CENTERS AREA
1” 69% 1-1/2” 70%
1" 1/4" +– 1-1/2" 1/4" +–
WEIGHT/SQ. FT. WEIGHT/SQ. FT.
1"
1"
2.5 LBS. 2.5 LBS.
CLEAR UNIFORM, CONCENTRATED & POINT LOADS CLEAR UNIFORM, CONCENTRATED & POINT LOADS
MAX. RECOMMENDED SPAN ULTIMATE MAX. RECOMMENDED SPAN ULTIMATE
SPAN DEFLECTION IN INCHES LOAD = LBS./SQ. FT. SPAN DEFLECTION IN INCHES LOAD = LBS./SQ. FT.
CAPACITY CAPACITY
(INCHES) 50 100 200 300 500 1000 2000 CORVEX IFR/FGI VI-CORR (INCHES) 50 100 200 300 500 1000 2000 CORVEX IFR/FGI VI-CORR
ΔU <.01 <.01 <.01 .01 .02 .05 .09 2367 2367 4628 10155 ΔU <.01 <.01 .01 .02 .04 .08 .16 1580 1580 3065 6770
ΔC <.01 ΔC <.01
12” 12”
.01 .02 .02 .04 .08 – 1183 1183 2314 5350 .01 .03 .04 .06 .13 – 790 790 1543 3567
ΔU .01 .02 .04 .07 .11 .22 .44 1052 1052 2057 4756 ΔU .02 .04 .08 .11 .20 .38 – 702 702 1371 3170
18” ΔC .01 .02 .05 .07 .12 .23 – 789 789 1543 3567 18” ΔC .02 .04 .08 .12 .20 .41 – 527 527 1028 2378
ΔP <.01 .01 .02 .03 .06 .11 .22 – – – – ΔP <.01 .01 .03 .04 .07 .14 .27 – – – –
ΔU .04 .07 .15 .22 .37 .73 – 592 592 1157 2675 ΔU .06 .12 .25 .37 .64 – – 395 395 771 1783
24” ΔC .03 .06 .12 .18 .30 .59 – 592 592 1157 2675 24” ΔC .05 .10 .20 .30 .49 – – 395 395 771 1783
ΔP .01 .02 .05 .07 .12 .24 .49 – – – – ΔP .01 .03 .05 .08 .13 .26 .53 – – – –
ΔU .08 .17 .34 .51 .85 – – 379 379 740 1712 ΔU .14 .27 .55 .82 – – – 253 253 494 1141
30” ΔC .05 .11 .22 .32 .54 – – 473 473 926 2140 30” ΔC .09 .18 .35 .53 .88 – – 316 316 617 1427
ΔP .02 .05 .09 .14 .23 .45 – – – – – ΔP .03 .05 .10 .15 .26 .52 – – – – –
ΔU .16 .32 .65 .97 1.61 – – 263 263 514 1189 ΔU .31 .62 1.24 1.85 – – – 176 176 343 793
36” ΔC .09 .17 .34 .52 .86 – – 394 394 771 1783 36” ΔC .16 .33 .66 .99 1.65 – – 263 263 514 1189
ΔP .04 .07 .14 .21 .35 .71 – – – – – ΔP .03 .07 .14 .20 .34 .68 – – – – –
ΔU .33 .66 1.32 1.98 – – – 193 193 378 873 ΔU .49 .98 1.97 – – – – 129 129 252 582
42” ΔC .15 .30 .60 .90 1.51 – – 338 338 661 1529 42” ΔC .23 .45 .90 1.35 – – – 226 226 441 1019
ΔP .05 .11 .21 .32 .53 – – – – – – ΔP .06 .12 .23 .35 .59 – – – – – –
1-1/2” DEEP SQUARE MESH 2” DEEP SQUARE MESH

1-1/2"
1-1/2” DEEP, 1-1/2” X 1-1/2” SQUARE MESH 2" 2” DEEP, 2” X 2” SQUARE MESH
LOAD BAR CROSS BAR
WIDTH CENTERS 2" LOAD BAR CROSS BAR
1-1/2"
1/4” ± 1-1/2” WIDTH CENTERS

1/4” ± 2”
LOAD BAR OPEN
CENTERS AREA LOAD BAR OPEN
1-1/2” 70% CENTERS AREA
1-1/2" 1/4" +– 2” 72%
2" 1/4" +–
WEIGHT/SQ. FT.
1-1/2"
3.75 LBS. WEIGHT/SQ. FT.

2"
4.0 LBS.
CLEAR UNIFORM, CONCENTRATED & POINT LOADS
MAX. RECOMMENDED SPAN ULTIMATE
SPAN DEFLECTION IN INCHES LOAD = LBS./SQ. FT.
CAPACITY
(INCHES) 50 100 200 300 500 1000 2000 CORVEX IFR/FGI VI-CORR CLEAR UNIFORM, CONCENTRATED & POINT LOADS
MAX. RECOMMENDED SPAN ULTIMATE
ΔU SPAN DEFLECTION IN INCHES LOAD = LBS./SQ. FT.
<.01 <.01 <.01 .01 .02 .04 .07 2067 2833 7700 10420
ΔC
CAPACITY
12” (INCHES) 50 100 200 300 500 1000 2000 CORVEX IFR/FGI VI-CORR
<.01 <.01 .01 .02 .03 .05 .11 1033 1417 3850 8000
ΔU ΔU <.01 <.01 <.01 <.01 .01 .02 .04 2500 6267 6267 9624
ΔC
<.01 .01 .03 .04 .07 .14 .28 919 1259 3422 6947 12”
18” ΔC .01 .02 .03 .05 .08 .15 .30 889 944 2567 5333 <.01 <.01 <.01 .01 .02 .03 .06 1250 3133 3133 9624
ΔP <.01 <.01 .01 .02 .03 .06 .13 – – – – ΔU .01 .02 .04 .06 .10 .20 – 625 1567 1567 4812
ΔU
24” ΔC .01 .02 .03 .05 .08 .16 – 625 1567 1567 5225
ΔP
.02 .04 .06 .12 .21 .42 – 517 708 1925 4000
24” ΔC .02 .03 .07 .10 .17 .33 – 517 708 1925 4000 <.01 <.01 .01 .02 .04 .07 .14 – – – –
ΔP <.01 .01 .02 .03 .06 .12 .23 – – – – ΔU .02 .05 .09 .14 .23 .45 – 400 1003 1003 3344
ΔU 30” ΔC .01 .03 .06 .09 .14 .29 – 500 1253 1253 4180
ΔP
.05 .09 .18 .27 .46 .91 – 331 453 1232 2560
30” ΔC .03 .06 .12 .18 .29 .59 – 413 567 1540 3200 <.01 .01 .02 .03 .06 .12 .23 – – – –
ΔP .01 .02 .04 .06 .10 .20 – – – – – ΔU .04 .09 .18 .26 .44 – – 278 696 696 2322
ΔU 36” ΔC .02 .05 .09 .14 .23 .47 – 417 1044 1044 3483
ΔP
.10 .20 .40 .59 .99 – – 230 315 856 1778
36” ΔC .05 .11 .21 .32 .53 1.06 – 344 472 1283 2667 <.01 .01 .03 .04 .07 .15 .29 – – – –
ΔP .02 .03 .06 .09 .15 .30 – – – – – ΔU .08 .16 .32 .47 .79 – – 204 512 512 1706
ΔU 42” ΔC .04 .07 .14 .22 .36 – – 357 895 895 2986
ΔP
.17 .34 .69 1.03 1.72 – – 169 231 629 1306
42” ΔC .08 .16 .32 .47 .79 1.58 – 295 405 1100 2286 .01 .02 .05 .08 .12 .25 .50 – – – –
ΔP .02 .04 .09 .13 .22 .44 – – – – – ΔU .14 .28 .56 .84 – – – 156 392 392 1306
ΔU 48” ΔC .06 .11 .22 .33 .56 – – 313 783 783 2613
ΔP
.28 .56 1.13 1.70 – – – 129 177 481 1000
48” ΔC .11 .23 .45 .68 1.13 – – 258 354 963 2000 .01 .03 .06 .09 .15 .30 .60 – – – –
ΔP .03 .06 .12 .18 .29 .58 – – – – – ΔU .21 .42 .84 1.26 – – – 123 309 309 1032
ΔU ΔC
54”
.42 .84 1.68 2.53 – – – 102 140 380 790 .07 .15 .30 .45 .75 – – 278 696 696 2322
54” ΔC .15 .30 .60 .90 1.50 – – 230 315 856 1778 ΔU .37 .73 1.46 – – – – 100 251 251 836
ΔP ΔC
60”
.04 .07 .15 .22 .37 – – – – – – .12 .23 .47 .70 1.17 – – 250 627 627 2090

PULTRUDED FIBERGLASS GRATING
P ultruded grating provides performance far exceeding

that of alternative products with a comparable
installed cost. This advanced fiberglass grating is designed
Using both a mechanical and chemical lock,
pultruded grating is manufactured with a two-piece cross
bar configuration which increase the panel’s support
for use in a wide range of applications that require and stability under load. The standard grit-top
strength and corrosion resistance. Manufactured with a walking surface provides sure footing and a
high percentage of glass within the laminate, pultruded protective synthetic veil, covering the exterior
grating combines durability with the highest strength and surface of the load bearing bars allows the
stiffness available in fiberglass grating. Pultruded grating grating to reliably withstand constant
can be used with confidence in applications where wide exposure to ultraviolet rays.
support spans are required.
CHARACTERISTICS OF CONTINUOUS FIBER ROVINGS AND MAT ARE DRAWN THROUGH A

RESIN BATH AND SHAPED THROUGH A SERIES OF FORMING
P U LT R U D E D G R AT I N G
GUIDES, THEN MECHANICALLY PULLED THROUGH A HEATED DIE.
PULTR UDED GRATING RESIN SYSTEMS
• HIGH STIFFNESS
Pultruded grating is available in two resin formulations for an accurate match of product characteristics with the
• MAINTENANCE FREE
application. Both resin systems provide corrosion resistance that is superior to that offered by metal grating.
• NON CONDUCTIVE ISOFR (YELLOW) – This isophthalic polyester resin formulation provides a low flame spread rating of 25 or less and is
• CORROSION RESISTANT designed for applications where there is moderate exposure to corrosive elements.
• SKID RESISTANT VEFR (GRAY) – With a flame spread of 25 or less, this vinyl ester resin system provides dependable resistance to both
acidic and alkaline environments.
• LIGHTWEIGHT
FOR ASSISTANCE IN SELECTING THE RESIN MOST APPROPRIATE FOR YOUR ENVIRONMENT, CONSULT THE “CHEMICAL RESISTANCE GUIDE” ON
• UV RESISTANT PAGE 42 OF THIS CATALOG.
“I” SERIES P U LT R U D E D G R AT I N G S T O C K L I S T
CATALOG GRATING WEIGHT WIDTH OF WIDTH OF % OPEN
RESINS / (COLOR) AVAILABLE
NO. DEPTH LBS./SQ. FT. TOP FLANGE OPEN AREA AREA
INDUSTRIAL DUTY “I” SERIES

I-6010 1” 2.4 0.6” .900” 60% ISOFR (Yellow) & VEFR (Gray)
I-4010 1” 3.5 0.6” .400” 40% ISOFR (Yellow) & VEFR (Gray)
I-6015 1-1/2” 2.9 0.6” .900” 60% ISOFR (Yellow) & VEFR (Gray)
“T” SERIES I-4015 1-1/2” 4.2 0.6” .400” 40% ISOFR (Yellow) & VEFR (Gray)
INDUSTRIAL DUTY “T” SERIES

T-5020 2” 3.1 1.0” 1.00” 50% ISOFR (Yellow) & VEFR (Gray)
T-3320 2” 4.0 1.0” .500” 33% ISOFR (Yellow) & VEFR (Gray)
LIGHT DUTY “T” SERIES

T-1210 1” 2.6 1.5” .214” 12.5% ISOFR (Light Gray)
LIGHT DUTY “T” SERIES T-2510 1” 2.3 1.5” .500” 25% ISOFR (Gray)
T-3810 1” 1.9 1.5” .900” 38% ISOFR (Gray)
T-5010 1” 1.6 1.0” 1.00” 50% VEFR (Gray)
T-5015 1-1/2” 1.9 1.0” 1.00” 50% VEFR (Gray)
TO PROPERLY SPECIFY “I” AND “T” SERIES PULTRUDED GRATING, SIMPLY ADD ‘-I” FOR ISOFR RESIN OR “-V” FOR VEFR RESIN TO THE CATALOG
NUMBERS SHOWN ABOVE. EXAMPLES: I-6015-V, T-3320-I
P U LT R U D E D G R AT I N G F A S T E N E R S
Type ”M” 316 stainless steel hold down clips used to
secure panels to a support using two adjacent grating bars
for a secure fit.
Type “G” stainless steel hold clips designed to attach TYPE M TYPE RK
grating to any structural member flange, 3/4” or smaller
in thickness, with no drilling required.
Type “F B” 316 stainless steel flange blocks fit inside
close mesh products allowing for installation of cap
screws from the top surface of the grating.
Type “RK” 316 stainless steel fasteners offer effective
and more secure means for installing pultruded grating.
TYPE G TYPE FB
39
PULTRUDED GRATING LOAD TABLES
THE FOLLOWING LOAD TABLES WERE DEVELOPED IN STRICT CONFORMANCE WITH THE FIBERGLASS LOAD/DEFLECTION CRITERIA PRESENTED ON PAGE 41 OF THIS CATALOG. U – UNIFORM IN LBS. PER SQ. FT.,
C – CONCENTRATED LINE LOAD IN LBS. PER FT. OF WIDTH, ΔU – UNIFORM LOAD DEFLECTION IN INCHES, ΔC – CONCENTRATED LINE LOAD DEFLECTION IN INCHES.
I-6010 1” DEEP “I” SERIES (LOAD BARS 1-1/2” O.C.) I-4010 1” DEEP “I” SERIES (LOAD BARS 1” O.C.)
CLEAR UNIFORM & CONCENTRATED LOADS MAX. CLEAR UNIFORM & CONCENTRATED LOADS MAX.
DEFLECTION IN INCHES LOAD = LBS./SQ. FT. ULTIMATE DEFLECTION IN INCHES LOAD = LBS./SQ. FT. ULTIMATE
SPAN RECOMMENDED SPAN RECOMMENDED
CAPACITY CAPACITY
(INCHES) 50 100 200 300 500 1000 2000 LOAD (INCHES) 50 100 200 300 500 1000 2000 LOAD
ΔU <.01 <.01 <.01 <.01 .01 .02 .04 3569 7139 ΔU <.01 <.01 <.01 <.01 <.01 .01 .02 5354 10708
ΔC <.01 ΔC <.01
12” 12”
<.01 <.01 <.01 .01 .03 .06 3569 7139 <.01 <.01 <.01 .01 .02 .04 5354 10708
ΔU <.01 .01 .02 .02 .04 .08 .16 2257 4515 ΔU <.01 <.01 .01 .02 .03 .05 .11 3386 6772
ΔC <.01 ΔC <.01
18” 18”
.01 .02 .03 .04 .09 .17 3386 6772 <.01 .01 .02 .03 .06 .12 5080 10159
ΔU .01 .02 .05 .07 .12 .24 – 1693 3386 ΔU .01 .02 .03 .05 .08 .16 .31 2540 5079
ΔC ΔC <.01
24” 24”
.01 .02 .04 .06 .09 .19 .38 2837 5674 .01 .03 .04 .06 .13 .25 4255 8510
ΔU .03 .05 .11 .16 .27 .55 – 1373 2746 ΔU .02 .04 .07 .11 .18 .36 .73 2059 4119
ΔC ΔC
30” 30”
.02 .03 .07 .10 .17 .35 .70 2300 4600 .01 .02 .05 .07 .12 .23 .47 3450 6900
ΔU .05 .10 .21 .31 .52 1.03 – 1175 2349 ΔU .03 .07 .14 .21 .35 .69 – 1762 3524
ΔC ΔC
36” 36”
.03 .06 .11 .17 .28 .55 – 1968 3935 .02 .04 .07 .11 .18 .37 .74 2952 5903
ΔU .09 .19 .37 .56 .93 – – 951 1902 ΔU .06 .12 .25 .37 .62 1.24 – 1427 2853
ΔC ΔC
42” 42”
.04 .08 .17 .25 .42 .85 – 1665 3330 .03 .06 .11 .17 .28 .57 1.13 2497 4994
ΔU .14 .29 .57 .86 1.43 – – 719 1438 ΔU .10 .19 .38 .57 .95 1.91 – 1079 2157
ΔC ΔC
48” 48”
.06 .11 .23 .34 .57 1.15 – 1438 2875 .04 .08 .15 .23 .38 .76 1.53 2156 4312
ΔU .25 .51 1.02 1.52 2.54 – – 568 1136 ΔU .17 .34 .68 1.02 1.69 – – 852 1703
ΔC ΔC
54” 54”
.09 .18 .36 .54 .90 1.81 – 1278 2555 .06 .12 .24 .36 .60 1.20 – 1917 3833
ΔU .42 .84 1.68 2.52 – – – 460 920 ΔU .28 .56 1.12 1.68 2.80 – – 690 1380
ΔC ΔC
60” 60”
.13 .27 .54 .81 1.34 2.69 – 1150 2300 .09 .18 .36 .54 .90 1.79 – 1725 3450
I-6015 1-1/2” DEEP “I” SERIES (LOAD BARS 1-1/2” O.C.) I-4015 1-1/2” DEEP “I” SERIES (LOAD BARS 1” O.C.)
CAPACITY CAPACITY
ΔU <.01 <.01 <.01 <.01 <.01 .01 .02 7617 15233 ΔU <.01 <.01 <.01 <.01 <.01 <.01 .01 11425 22850
ΔC <.01 ΔC <.01
12” 12”
<.01 <.01 <.01 <.01 .01 .02 7617 15233 <.01 <.01 <.01 <.01 .01 .02 11425 22850
ΔU <.01 .01 .02 .03 .04 .09 .17 3194 6388 ΔU <.01 <.01 .01 .02 .03 .06 .11 4791 9582
ΔC <.01 ΔC <.01
24” 24”
<.01 .01 .02 .03 .07 .14 4875 9750 <.01 <.01 .01 .02 .05 .10 7313 14625
ΔU .01 .02 .04 .06 .10 .20 .41 2948 5897 ΔU <.01 .01 .03 .04 .07 .14 .27 4423 8845
ΔC <.01 ΔC <.01
30” 30”
.01 .03 .04 .06 .13 .26 4500 9000 .01 .02 .03 .05 .11 .22 6750 13500
ΔU .02 .04 .08 .11 .19 .38 .75 2457 4914 ΔU .01 .03 .05 .08 .13 .25 .50 3686 7371
ΔC ΔC <.01
36” 36”
.01 .02 .04 .06 .10 .20 .40 3750 7500 .01 .03 .04 .07 .13 .26 5625 11250
ΔU .04 .07 .14 .21 .35 .70 – 1837 3673 ΔU .02 .05 .09 .14 .23 .47 .94 2755 5510
ΔC ΔC
42” 42”
.02 .03 .06 .10 .16 .32 .64 3215 6429 .01 .02 .04 .06 .11 .21 .42 4822 9643
ΔU .06 .11 .23 .34 .57 1.14 – 1406 2813 ΔU .04 .08 .15 .23 .38 .76 1.52 2109 4219
ΔC ΔC
48” 48”
.02 .05 .09 .14 .23 .46 .91 2813 5625 .02 .03 .06 .09 .15 .30 .60 4219 8438
ΔU .10 .19 .39 .58 .97 – – 1111 2222 ΔU .06 .13 .26 .39 .65 1.29 – 1667 3333
ΔC ΔC
54” 54”
.03 .07 .14 .21 .35 .69 1.38 2500 5000 .03 .05 .09 .14 .23 .46 .92 3750 7500
ΔU .15 .31 .62 .93 1.54 – – 900 1800 ΔU .10 .21 .41 .62 1.03 2.06 – 1350 2700
ΔC ΔC
60” 60”
.05 .10 .20 .30 .49 .99 1.98 2250 4500 .04 .07 .13 .20 .33 .66 1.32 3375 6750
ΔU .25 .49 .99 1.48 2.47 – – 744 1488 ΔU .16 .33 .66 .99 1.64 3.29 – 1116 2231
ΔC ΔC
66” 66”
.07 .14 .28 .42 .70 1.40 2.80 2046 4091 .05 .09 .19 .28 .47 .93 1.86 3068 6136
T-5020 2” DEEP “T” SERIES (LOAD BARS 2” O.C.) T-3320 2” DEEP “T” SERIES (LOAD BARS 1-1/2” O.C.)
CAPACITY CAPACITY
ΔU <.01 <.01 <.01 <.01 <.01 <.01 .01 7560 15120 ΔU <.01 <.01 <.01 <.01 <.01 <.01 .01 10080 20160
ΔC <.01 ΔC <.01
12” 12”
<.01 <.01 <.01 <.01 .01 .02 7560 15120 <.01 <.01 <.01 <.01 <.01 .01 10080 20160
ΔU <.01 <.01 <.01 .02 .03 .05 .11 2970 5940 ΔU <.01 <.01 <.01 .01 .02 .04 .08 3960 7920
ΔC <.01 ΔC <.01
24” 24”
<.01 <.01 .01 .02 .04 .08 5940 11880 <.01 <.01 .01 .02 .03 .06 7920 15840
ΔU .01 .02 .05 .07 .12 .23 .47 2160 4320 ΔU .01 .02 .04 .05 .09 .18 .35 2880 5760
ΔC <.01 ΔC <.01
36” 36”
.01 .02 .04 .06 .12 .25 4320 8640 .01 .02 .03 .05 .09 .19 5760 11520
ΔU .02 .05 .09 .14 .23 .45 – 1851 3703 ΔU .02 .03 .07 .10 .17 .34 .68 2468 4937
ΔC ΔC
42” 42”
.01 .02 .04 .06 .10 .21 .41 3714 7429 .01 .02 .03 .05 .08 .16 .31 4953 9905
ΔU .04 .07 .14 .21 .36 .73 – 1620 3240 ΔU .03 .05 .11 .16 .27 .55 1.09 2160 4320
ΔC ΔC
48” 48”
.01 .03 .06 .09 .15 .29 .58 3250 6500 .01 .02 .04 .07 .11 .22 .44 4333 8666
ΔU .06 .12 .24 .36 .59 1.19 – 1284 2568 ΔU .04 .09 .18 .27 .45 .89 – 1679 3358
ΔC ΔC
54” 54”
.02 .04 .08 .13 .21 .42 .84 2889 5778 .02 .03 .06 .10 .16 .32 .63 3778 7555
ΔU .09 .18 .36 .54 .91 1.82 – 1040 2080 ΔU .07 .14 .27 .41 .68 1.37 – 1360 2720
ΔC ΔC
60” 60”
.03 .06 .12 .17 .29 .58 1.17 2600 5200 .02 .04 .09 .13 .22 .44 .88 3400 6800
ΔU .13 .27 .54 .81 1.34 – – 860 1720 ΔU .10 .20 .40 .60 1.00 2.00 – 1124 2248
ΔC ΔC
66” 66”
.04 .08 .15 .23 .38 .76 1.52 2363 4727 .03 .06 .12 .17 .29 .57 1.14 3091 6182
ΔU .18 .35 .70 1.05 1.76 – – 722 1445 ΔU .13 .26 .53 .79 1.32 – – 945 1889
ΔC ΔC
72” 72”
.05 .09 .19 .28 .47 .94 1.88 2167 4333 .04 .07 .14 .21 .35 .70 1.41 2833 5666

PULTRUDED GRATING LOAD TABLES
THE FOLLOWING LOAD TABLES WERE DEVELOPED IN STRICT CONFORMANCE WITH THE FIBERGLASS LOAD/DEFLECTION CRITERIA PRESENTED BELOW. U – UNIFORM IN LBS. PER SQ. FT., C – CONCENTRATED LINE LOAD IN
LBS. PER FT. OF WIDTH, ΔU – UNIFORM LOAD DEFLECTION IN INCHES, ΔC – CONCENTRATED LINE LOAD DEFLECTION IN INCHES.
T-1210 1” DEEP LIGHT DUTY “T” SERIES (LOAD BARS 1.71” O.C.) T-2510 1” DEEP LIGHT DUTY “T” SERIES (LOAD BARS 2” O.C.)
SPAN RECOMMENDED CAPACITY SPAN RECOMMENDED CAPACITY
ΔU <.01 <.01 <.01 <.01 .01 .02 .04 3822 7644 ΔU <.01 <.01 <.01 <.01 .01 .02 .05 3276 6552
ΔC <.01 ΔC <.01
12” 12”
<.01 <.01 <.01 .01 .04 .06 3822 7644 <.01 <.01 .01 .02 .4 .08 3276 6552
ΔU <.01 <.01 .01 .03 .04 .09 .18 2548 5049 ΔU <.01 .01 .02 .03 .05 .10 .20 2184 4368
ΔC <.01 ΔC <.01
18” 18”
.01 .02 .03 .05 .09 .19 3621 7242 .01 .02 .03 .05 .11 .22 3104 6208
ΔU .01 .02 .05 .07 .12 .24 .48 1911 3822 ΔU .01 .03 .06 .08 .14 .28 – 1638 3276
ΔC ΔC
24” 24”
.01 .02 .04 .06 .09 .19 .38 2716 5432 .01 .02 .04 .07 .11 .22 .45 2328 4656
ΔU .03 .06 .11 .17 .29 .57 – 1539 3058 ΔU .03 .07 .13 .20 .33 .67 – 1311 2621
ΔC ΔC
30” 30”
.02 .04 .57 .11 .19 .36 .72 2173 4346 .02 .04 .09 .13 .21 .43 – 1863 3725
ΔU .06 .11 .23 .35 .58 1.16 – 1207 2414 ΔU .07 .14 .27 .41 .68 1.35 – 1035 2069
ΔC ΔC
36” 36”
.03 .06 .12 .19 .31 .61 – 1811 3622 .04 .07 .14 .22 .36 .72 – 1552 3104
ΔU .11 .21 .43 .64 1.06 – – 887 1774 ΔU .12 .25 .50 .74 1.24 – – 760 1520
ΔC ΔC
42” 42”
.05 .10 .19 .29 .49 .97 – 1552 3104 .06 .11 .23 .34 .57 1.13 – 1331 2661
ΔU .18 .36 .71 1.07 1.79 – – 679 1358 ΔU .21 .42 .84 1.25 2.09 – – 582 1164
ΔC ΔC
48” 48”
.07 .14 .29 .43 .71 1.42 – 1358 2716 .08 .17 .33 .50 .83 1.66 – 1164 2328
T-3810 1” DEEP LIGHT DUTY “T” SERIES (LOAD BARS 2.4” O.C.) T-5010 1” DEEP LIGHT DUTY “T” SERIES (LOAD BARS 2” O.C.)
CLEAR UNIFORM & CONCENTRATED LOADS MAX. CLEAR LOAD TYPE SAFE LOAD 2:1 MAXIMUM
DEFLECTION IN INCHES LOAD = LBS./SQ. FT. ULTIMATE SPAN IN. SAFETY FACTOR LOAD
SPAN RECOMMENDED CAPACITY
(INCHES) LOAD U 200 400 600 800 1000 1500 2000 4768 9532
ΔU
50 100 200 300 500 1000 2000
ΔU <.01
12” .008 .015 .023 .031 .038 .057 .076 .182 .364
C 100 200 300 400 500 750 1000 2383 4766
ΔC
<.01 <.01 <.01 .01 .03 .06 2730 5460
ΔC <.01
12” .006 .012 .018 .025 .031 .046 .061 .146 .291
<.01 <.01 .01 .02 .05 .09 2730 5460 U 133 267 400 533 667 1000 1333 2144 4288
ΔU <.01 .01 .02 .04 .06 .12 – 1820 3640 18” ΔU .025 .050 .075 .100 .125 .187 .249 .401 .802
ΔC <.01
18” C 100 200 300 400 500 750 1000 1608 3217
.01 .03 .04 .07 .13 .26 2587 5173 ΔC .020 .040 .060 .080 .100 .150 .200 .321 .642
ΔU
U 100 200 300 400 500 750 1000 1221 2442
.02 .03 .07 .10 .17 .34 – 1365 2730 ΔU .057 .114 .172 .229 .286 .429 .572 .698 1.397
ΔC
24” 24” C 100 200 300 400 500 750 1000 1221 2442
ΔC
.01 .03 .05 .08 .13 .27 – 1940 3880 .046 .092 .137 .183 .229 .343 .458 .558 1.117
ΔU .04 .08 .16 .24 .40 .80 – 1092 2184 U 80 160 240 320 400 600 791 1582
ΔU
ΔC
30” .108 .216 .325 .433 .541 .811 1.070 2.140
.03 .05 .10 .15 .26 .51 – 1552 3104 30” C 100 200 300 400 500 750 988 1977
ΔC
ΔU
.087 .173 .260 .346 .433 .649 .856 1.712
.08 .16 .32 .49 .81 – – 862 1724
ΔC
36” U 67 133 200 267 333 556 1112
.04 .09 .17 .26 .43 .86 – 1294 2587 36” ΔU .182 .362 .544 .726 .905 1.512 3.024
ΔU
C 100 200 300 400 500 833 1667
.15 .30 .60 .89 1.49 – – 634 1267 ΔC .146 .289 .435 .581 .724 1.209 2.419
ΔC
42”
U 57 114 171 413 826
ΔU
.07 .14 .27 .41 .68 1.36 – 1109 2217
.279 .557 .836 2.019 4.038
ΔU
42” C 100 200 300 723 1446
ΔC
.25 .50 1.00 1.50 – – – 485 970
ΔC
48” .223 .446 .669 1.615 3.230
.10 .20 .40 .60 1.00 – – 970 1940 U 50 100 320 640
48” ΔU .405 .810 2.592 5.184
C 100 200 640 1280
ΔC .324 .648 2.074 4.147
F I B E R G L A S S G R AT I N G
L O A D / D E F L E C T I O N I N F O R M AT I O N T-5015 1-1/2” DEEP LIGHT DUTY “T” SERIES (LOAD BARS 2” O.C.)
MANUFACTURING CONTROL LIMITS – The load/deflection values given in this brochure are CLEAR SAFE LOAD 2:1 MAXIMUM
LOAD TYPE
median values developed through a strict quality assurance program. The manufacturing SPAN IN. SAFETY FACTOR LOAD
U 200 400 600 800 1000 2000 2500 10,322 20,644
ΔU
control limits on stiffness for all panels are plus or minus 7.5% of these median values.
12” .003 .006 .008 .011 .014 .028 .035 .142 .285
This represents the tightest control on performance variation in the industry, based C 100 200 300 400 500 1000 1250 5161 10,322
published data. ΔC .002 .004 .007 .009 .011 .022 .028 .114 .228
U 133 267 400 533 667 1333 1667 4643 9286
ULTIMATE CAPACITY – Molded and pultruded grating product lines have been tested to
18” ΔU .009 .018 .027 .036 .046 .091 .114 .317 .633
C 100 200 300 400 500 1000 1250 3482 6964
ΔC
their ultimate capacities. Ultimate Capacity represents a complete and total failure of the
.007 .015 .022 .029 .036 .073 .091 .253 .507
grating and is presented to illustrate the reserve strength of the grating at a given span. U 100 200 300 400 500 1000 1250 2643 5286
Ultimate capacities are not to be used for design; functionality of the grating is limited to 24” ΔU .021 .042 .063 .084 .106 .211 .264 558 1.115
C 100 200 300 400 500 1000 1250 2643 5286
Maximum Recommended Load. ΔC .017 .034 .051 .068 .084 .169 .211 .446 .892
BARS PER FOOT OF WIDTH – The preceeding molded grating load tables were developed U 80 160 240 320 400 1711 3423
30” ΔU .040 .081 .121 .161 .202 .863 1.726
using 8 bars per foot of width for 1-1/2” square mesh grating and 12 bars per foot of width C 100 200 300 400 500 2139 4278
for rectangular mesh grating for uniform and concentrated loads. Some manufacturers use ΔC .032 .065 .097 .129 .161 .691 1.381
U 67 133 200 267 333 1202 2404
9 bars per foot of width and 13 bars per foot of width respectively. This can overstate
36” ΔU .069 .136 .205 .273 .341 1.230 2.459
grating performance by as much as 12.5%. When comparing the presented products to C 100 200 300 400 500 1803 3607
ΔC .055 .109 .164 .219 .273 .984 1.967
those using 9 or 13 bars, multiply the deflection reported in this catalog by 0.89 for square U 57 114 171 229 893 1787
mesh products, and 0.92 for rectangular mesh products. 42” ΔU .106 .211 .317 .415 1.657 3.314
C 100 200 300 400 1563 3127
WALKING LOADS – Walking loads, typically 50-65 PSF maximum or 250 lbs. concentrated point ΔC .085 .169 .254 .332 1.326 2.651
load, are recommended for pedestrian traffic. Deflections for worker comfort are typically limited U 50 100 150 692 1384
48” ΔU .155 .310 .464 2.142 4.284
to the lesser of 3/8” or Clear Span divided by 125; for a firmer feel, limit deflection to the lesser of C 100 200 300 1384 2768
1/4” or Clear Span divided by 200. ΔC .124 .248 .372 1.714 3.427
STATIC LOADS – The allowable loads in the tables are for Static Load Conditions at
ambient temperatures only. Allowable loads for impact or dynamic
conditions should be a minimum of ONE-HALF the values
shown. Long term loads will result in added deflection due to
U
creep in the material and will also require higher safety factors C
to insure acceptable performance. For applications at 12"
elevated temperatures, consult Indiana Gratings. The
designer is further referenced to ASCE Structural Plastics
Equal Equal
Design Manual. Span (in.)
Span (in.) Span (in.)
41
FIBERGLASS GRATING STAIR TREADS
F ibertred Grating Stair Treads manufactured from

quality Fibergrate molded grating exceed tough
OSHA standards for safety, strength, durability and
wide gritted strip is molded into the lead edge of the tread
for superior slip resistance. (Additional support is required
for treads exceeding 42” in width).
corrosion resistance. Fibertred is available in the same high Cost efficient, durable Pultruded Stair Treads are
performance resin formulations as Fibergrate molded slip-resistant and non-conductive. These stair treads offer
grating and also provides excellent safety characteristics – the same level of safety, strength and corrosion resistance
slip resistance, non-conductivity and a low flame spread. as other pultruded fiberglass products. Designed for use in
Unique cutting channels, spaced at 6” intervals, applications where wider support spans are required,
MOLDED GRATING provide efficient utilization when custom fitting into Pultruded Stair Treads are available in 1”, 1-1/2”,
stairways. These channels also ensure that all standard and 2” thicknesses.
STAIRTREADS stairtreads widths are terminated with closed ends. A 1-1/2”
Fiberglass Stair Tread Load Table

LOAD SPAN (IN.) 18 24 30 36 42 48
a CHEMICAL ENVIRONMENT
ACETIC ACID
ACETONE
ALCOHOLS
ALUM
ALUMINUM CHLORIDE
ALUMINUM FLUORIDE
AMMONIUM HYDROXIDE
AMMONIUM SALTS - NEUTRAL
AMMONIUM SALTS - AGGRESSIVE
AROMATIC SOLVENTS
BARIUM SALTS
BENZENE
BLACK LIQUOR (PULP MILL)
BLEACH LIQUOR (PULP MILL)
CALCIUM HYDROXIDE
CALCIUM HYPOCHLORITE
CALCIUM SALTS
CARBON TETRACHLORITE
CHLORINATED HYDROCARBONS
CHLORINE DIOXIDE
CHLORINE WATER
CHLORINE, WET
CHLOROBENZENE
CHLOROBENZENE
CHLOROFORM
CHROMIC ACID
CITRIC ACID
COPPER CYANIDE PLATING
COPPER SALTS
CRUDE OIL (SWEET OR SOUR)
DICHLOROBEZENE
ETHERS
FERRIC CHLORIDE
FERRIC SALTS
FLUORIDE SALTS + HCI
FLUOSILICIC ACID
FORMALDEHYDE
FORMIC ACID
FUEL (DIESEL, JET, GASOLINE)
GLYCERINE
GREEN LIQUOR (PULP MILL)
HYDROBROMIC ACID
HYDROCHLORIC ACID
HYDROCHLORIC ACID
T - TEST
PULTRUDED GRATING
20
30
All
All
All
All
100
All
All
25
All
All
100
100
Sat.
Sat.
Sat.
100
All
100
50
All
All
All
All
100
100
All
All
10
37
25
All
100
All
48
10
30
STAIRTREADS
FIBERGLASS GRATING CHEMICAL RESISTANCE GUIDE

C H E M I C A L R E S I S TA N C E G U I D E
CONCENTRATION
50
100
100
All
All
TEMP.
0
75
75
75
F
Max.
75
120
Max.
Max.
120
75
75
Max.
140
Max.
Max.
Max.
Max.
Max.
75
140
120
Max.
75
ViCORR
Up to 100
75
140
Max.
125
Max.
Max.
75
75
Max.
Max.
75
75
150
100
100
Max.
Max.
Max.
Max.
Max.
C
C
C
C
C
C
C
T
C
C
C
C
C
C
C
T
C
C
C
C
N
S
C
C
C
C
T
T
C
C
C
C
C
C
C
C
C
S
C
S
CS
SUPER
C
S
C
C
C
C
C
C
C
T
C
S
C
C
C
C
C
C
T
C
C
C
S
C
N
S
C
C
C
C
S
T
C
C
C
C
C
C
C
C
C
S
C
C
MOLDED FIBERGRATE
ViCORR
IFR
C
I
I
C
C
I
N
C
I
N
C
I
I
I
S
I
C
I
T
N
I
N
N
N
N
S
C
S
C
C
N
N
C
C
S
S
I
S
C
C
N
S
S
S
FGI
C
I
I
C
C
I
N
C
I
N
C
I
I
I
S
I
C
I
T
N
I
N
N
N
N
S
C
S
C
C
N
N
C
C
S
S
I
S
C
C
N
S
S
S
TREAD TYPE
FIBERTRED MOLDED TREAD

1.5” THICK, 1.5” X 6” RECT. MESH
1” THICK, I-6010
PULTRUDED
1” THICK, I-4010
PULTRUDED
1.5” THICK, I-6015

PULTRUDED
1.5” THICK, I-4015

PULTRUDED
2” THICK, T-5020
PULTRUDED
2” THICK, T-3320
PULTRUDED
CORVEX
C
T
I
C
C
I
N
S
T
N
C
N
N
N
I
N
C
N
T
N
T
N
N
N
N
N
C
I
C
C
N
N
C
C
N
S
I
I
C
C
N
I
S
I
XFR
I
I
S
C
C
I
N
S
I
N
C
I
I
N
I
I
C
S
N
N
I
N
N
N
N
N
C
N
C
C
N
N
C
C
I
S
I
I
C
C
N
I
C
I
C - CONTINUOUS EXPOSURE OF THE GRATING TO THE CHEMICAL ENVIRONMENT LISTED AT THE TEMPERATURE LISTED.
I
I
C
T
N
C
I
I
I
S
I
C
S
T
S
I
N
N
N
N
I
C
S
C
C
N
N
C
C
I
S
S
S
C
C
I
I
S
I
PULTRUDED
SAFE-T-SPAN
VEFR
C
I
I
C
C
I
N
S
N
N
C
N
N
N
I
N
C
N
T
N
N
N
N
N
N
N
C
I
C
C
N
N
C
C
N
I
I
I
C
C
N
N
S
I
(LBS.) SPAN/150 .12
ISOFR
C
N
I
C
C
250
500
250
500
250
500
250
500
250
500
250
500
250
500
LIME SLURRY
LITHIUM SALTS
MAGNESIUM SALTS
MALEIC ACID
MERCURY CHLORIDE
NICKEL SALTS
NITRIC ACID
NITRIC ACID
NITRIC ACID
PHENOL
PHENOL
PHOSPHORIC ACID
.03
.06
.03
.07
.02
.05
.01
.02
.01
.02
.01
.02
.01
.02
CHEMICAL ENVIRONMENT
NITRIC, HYDROFLUORIC
NITROUS ACID
OZONE FOR SEWAGE TREATMENT
PERCHLOROETHYLENE
PHOSPHORIC ACID, SUPER

POTASSIUM HYDROXIDE
POTASSIUM SALTS
SILVER NITRATE
SODIUM CYANIDE
SODIUM HYDROXIDE
SODIUM HYDROXIDE
SODIUM HYPOCHLORITE (STABLE)
SODIUM SALTS - NEUTRAL
SODIUM SALTS - AGGRESSIVE
SULFUR DIOXIDE
SULFURIC ACID
SULFURIC ACID
SULFURIC ACID
TOLUENE
TRICHLOROETHANE 1,1,1
TRISODIUM PHOSPHATE
.16
.05
.10
.08
.15
.05
.11
.02
.04
.01
.03
.02
.04
.01
.03
HYDROCHLORIC ACID (CONCENTRATED)

HYDROCYANIC ACID
HYDROFLUORIC ACID
HYDROGEN PEROXIDE
LACTIC ACID
WATER (FRESH, SALT, MODERATE D.I.)

WET CHLORINE - HYDROCHLORIC ACID
WHITE LIQUOR (PULP MILL)
ZINC CHLORIDE PLATING
ZINC SALTS
S - FREQUENT EXPOSURE OF THE GRATING TO SPLASHES AND SPILLS FROM THE CHEMICAL ENVIRONMENT LISTED WITH THAT ENVIRONMENT AT THE TEMPERATURE LISTED.
.20
.09
.19
.14
.28
.10
.20
.04
.08
.03
.05
.03
.06
.02
.04
Sat.
All
All
100
100
All
20
35
40
20:2
10
100
10
88
85
115
10
All
100
All
50
10
10
All
All
Sat.
25
50
75
100
All
50
100
10-20
All
All
100
.24
.16
.32
.22
.44
.16
.32
.06
.11
.04
.07
.04
.09
.03
.06
CONCENTRATION
All
All
20
30
100
TEMP.
0
F
75
75
Max.
Max.
Max.
Max.
Max.
Max.
120
100
75
.28
.25
.50
.34
.68
.24
.49
.09
.18
.06
.12
.06
.12
.05
.09
ViCORR
Up to 180
Max.
Max.
Ambient
75
75
100
75
Ambient
Max.
Max.
120
Max.
Max.
75
Max.
Max.
100
Max.
75
Max.
Max.
Max.
100
120
75
Max.
Max.
Up to 350
Max.
75
Max.
I
C
S
C
C
C
C
C
C
C
C
C
C
I
I
C
C
S
C
S
C
C
C
C
C
C
C
C
C
C
S
C
C
C
C
S
S
C
C
S
C
C
C
.32
.41
1.24
.46
.92
.33
.65
.13
.26
.09
.17
.09
.18
.07
.14
SUPER
ViCORR
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
NOTES:
C
C
C
S
C
C
S
N
N
N
C
C
N
N
N
C
I
I
C
C
I
I
N
S
C
I
S
S
S
I
I
I
I
C
N
I
S
C
I - INFREQUENT EXPOSURE OF THE GRATING TO SPLASHES AND SPILLS FROM THE CHEMICAL ENVIRONMENT LISTED WITH THAT ENVIRONMENT AT THE TEMPERATURE LISTED AND THE SPILL IMMEDIATELY CLEANED UP OR WASHED FROM THE GRATING.
N - NOT RECOMMENDED FOR THE CONCENTRATIONS AND TEMPERATURES LISTED.
Equal
Span (in.)
MOLDED FIBERGRATE
IFR
N
I
N
N
C
FGI
N
I
N
N
C
C
C
C
S
C
C
S
N
N
N
C
C
N
N
N
C
I
I
C
C
I
I
N
S
C
I
S
S
S
I
I
I
I
C
N
I
S
C
SUPER VICORR MAY REQUIRE BENZOYL PEROXIDE - DMA CURE SYSTEM TO INCREASE LIFE. CONSULT INDIANA GRATINGS FOR CORROSION RECOMMENDATIONS AT CONCENTRATIONS, TEMPERATURES OR CHEMICALS NOT LISTED IN THIS GUIDE. MAXIMUM TEMPERATURE
Equal
1. IT IS SUGGESTED THAT STAIR TREAD DEFLECTION BE

LIMITED TO SPAN/150. DEFLECTIONS BASED ON THIS
RATIO ARE PROVIDED AT THE TOP OF THE TABLE.
2. DEFLECTIONS IN THE BODY OF THE TABLE ARE FOR
CONCENTRATED LOADS OF BOTH 250 LBS. AND 500
LBS. A CONCENTRATED LOAD IS APPLIED AT THE
CENTERLINE OF THE TREAD, OVER A WIDTH OF 4”
AND A DEPTH OF 6”, STARTING AT THE NOSING EDGE
TO SIMULATE THE LANDING OF A FOOT.
3. DEFLECTIONS ARE NOT APPRECIABLY DIFFERENT
DUE TO STAIR TREAD DEPTH. ACTUAL DEPTH WILL
VARY DEPENDING ON STAIR TREAD CONFIGURATION.
CORVEX
N
I
N
N
C
C
C
C
I
C
C
I
N
N
N
C
C
N
N
N
S
T
N
C
C
I
N
N
I
C
T
S
I
N
N
N
N
I
C
N
N
N
C
IS 4000F FOR SUPER VICORR; 1800F FOR VICORR AND PULTRUDED VEFR; 1500F FOR IFR, FGI, XFR AND PULTRUDED ISOFR; 1400F FOR CONVEX. THE INFORMATION IN THIS CORROSION GUIDE IS CORRECT TO THE BEST OF INDIANA GRATINGS’S KNOWLEDGE. IT IS
BASED ON EXTENSIVE EXPERIENCE WITH FIBERGLASS GRATING IN CORROSIVE APPLICATIONS. BECAUSE ACTUAL USE CONDITIONS DIFFER AND MIXTURES OF CORROSIVES WILL OCCUR IN SERVICE, THE END USER MUST TEST FOR USE UNDER ACTUAL CONDITIONS.
INDIANA GRATINGS’S RESPONSIBILITY FOR CLAIMS ARISING FROM BREACH OF WARRANTY, NEGLIGENCE OR OTHERWISE IS LIMITED TO THE PURCHASE PRICE OF THE MATERIAL SOLD BY INDIANA GRATINGS. TEST COUPONS ARE AVAILABLE UPON SPECIFIC REQUEST.

XFR
N
I
N
I
C
C
C
C
C
C
C
I
I
N
N
C
C
I
N
N
C
S
N
C
C
I
N
N
S
C
I
S
S
S
I
N
I
I
C
N
I
S
C
N
S
N
S
C
C
C
C
S
C
C
I
I
N
N
C
C
I
I
N
C
S
S
C
C
S
I
N
S
C
T
S
S
S
I
I
I
I
C
N
S
S
C
PULTRUDED
SAFE-T-SPAN
VEFR ISOFR
N
I
N
N
C
C
C
C
I
C
C
I
N
N
N
C
C
N
N
N
S
N
N
C
C
I
N
N
I
C
N
S
I
N
N
N
N
N
C
N
N
N
C
10-1/2"
(Nom.)
PERFORATED METALS
P erforated Metals are available in all popular materials, carbon steel. aluminum, stainless
steel and brass. Provide us with the opportunity to supply your requirements and we will
take every step to earn your valued trust!
Size
Size
P E R F O R AT E D M E TA L S – H O L E PAT T E R N S
Centers
Bar Centers
Bar Centers Size
Centers
Centers
Bar
Bar
Centers
450
600
STANDARD ROUND PERFORATIONS STRAIGHT LINE ROUND OPTIONAL ROUND PERFORATIONS SQUARE PERFORATIONS STRAIGHT LINE SQUARE
600 STAGGERED PERFORATIONS 450 STAGGERED STAGGERED PERFORATIONS
Bar Centers
Centers
HEXAGONAL PERFORATIONS ORNAMENTAL SIDE STAGGERED SLOTS STRAIGHT LINE RECTANGULAR END STAGGERED SLOTS
STAGGERED PERFORATIONS (SEE PAGE 45) (OR RECTANGULAR) (OR SLOTS) (OR RECTANGULAR)
PAT T E R N O R I E N TAT I O N END MARGINS

End Length
Margin Length End
Perforated Area Margin
Margin
Side
Width
ROUND HOLE
STANDARD FLOW
SIDE STAGGERED SLOT FINISHED END MARGIN

Length
Perforated Area
Width
Width
STAGGERED SQUARES STRAIGHT LINE
END STAGGERED ROUND HOLE

RECTANGLES OPTIONAL FLOW UNFINISHED END MARGIN
Length
Margin
Side
Width
ROUND HOLE STANDARD FLOW (Straight rows parallel to length of sheet) END STAGGERED RECTANGLES (Parallel to width or length of sheet)
ROUND HOLE - OPTIONAL FLOW (Straight rows parallel to width of sheet) STRAIGHT LINE (Squares, slots or rounds)
SIDE STAGGERED SLOTS ( Parallel to width or length of sheet) STAGGERED SQUARE ( Parallel to length of sheet)
BLANK MARGIN
43
ROUND HOLE PATTERN ILLUSTRATIONS
.020” DIA .043” CTRS .027” DIA .050” CTRS 1/32” DIA 1/16” CTRS .033” DIA .055” CTRS .045” DIA 5/64” CTRS
20% OPEN AREA 26% OPEN AREA 23% OPEN AREA 33% OPEN AREA 30% OPEN AREA
3/64” DIA 3/32” CTRS 1/16” DIA 3/32” CTRS 1/16” DIA 7/64” CTRS 1/16” DIA 1/8” CTRS 5/64” DIA 1/8” CTRS
3/32” DIA 5/32” CTRS 3/32” DIA 3/16” CTRS .117” DIA 5/32” CTRS 1/8” DIA 3/16” CTRS 1/8” DIA 7/32” CTRS
5/16” DIA 7/16” CTRS 3/8” DIA 9/16” CTRS 3/8” DIA 1/2” CTRS 1/2” DIA 11/16” CTRS
46% OPEN AREA 40% OPEN AREA 51% OPEN AREA 48% OPEN AREA

ROUND & SQUARE HOLE PATTERN ILLUSTRATIONS
5/8” DIA 7/8” CTRS 3/4” DIA 1” CTRS 1” DIA 1-3/8” CTRS 3/4” SQ 1” STRAIGHT ROWS
46% OPEN AREA 51% OPEN AREA 48% OPEN AREA 56% OPEN AREA
ORNAMENTAL & SPECIALTY PATTERNS
DIAMOND CANE 19% OPEN MARIETTA 45% OPEN GRECIAN 35% OPEN
STANDARD OCTAGON ROUND CANE MOIRE FULL CLOVERLEAF

35% OPEN 38% OPEN 41% OPEN 1/8” X 3/4” 50% OPEN
HEXAGON 1/4” MAX-FLOW 68% OPEN SLOTS 1/4” X 1-1/2”, IN ROWS

79% OPEN ACROSS WIDTH OF SHEET. VERTICAL BARS 3/32” WIDE,
WITH EVERY THIRD BAR 3/16”
C U S T O M P E R F O R AT I N G
Indiana Gratings is also your one-stop service center for custom perforated metals. If our vast
inventory of materials and patterns does not suit your exact needs, just call. We will gladly provide
custom perforated metals of all description with special margins, configurations and open area.
Secondary fabrication such as shearing, coping, forming and finishing are readily available. Simply
provide your drawings and we will promptly quote to your exact specifications.
45
PERFORATED METALS
R O U N D H O L E S S TA G G E R E D R O U N D H O L E S S TA G G E R E D ROUND HOLES STRAIGHT
PAT T E R N PAT T E R N ( C O N T. ) L I N E PAT T E R N
GAUGE / PLATE GAUGE / PLATE GAUGE / PLATE
HOLE CENTERS OPEN AREA HOLE CENTERS OPEN AREA HOLE CENTERS OPEN AREA
THICK. THICK. THICK.
CARBON STEEL ALUMINUM – ALLOY 3003-H14 CARBON STEEL
.020" RD .045" Stag 26 18% 3/64" RD 5/64" Stag 20 33% .027" RD .050" Strght 26 23%
1/32" RD 1/16" Stag 22 23% .050" RD 5/64" Stag 20, 18 37% .050" RD .066" Strght 24 45%
3/64" RD 5/64" Stag 24 33% 1/16" RD 1/8" Stag 22 thru 14 23% 1/4" RD 3/8" Strght 16 35%
3/64" RD 3/32" Stag 22 thru 18 23% 5/64" RD 1/8" Stag 16, 14 35% 1/4" RD 1/2" Strght 18, 16 20%
1/16" RD 3/32 Stag 22 thru 16 40% 3/32" RD 5/32" Stag 22 thru 14 33% 1/4" RD 1" Strght 3/16" 5%
1/16" RD 7/64" Stag 20 thru 16 30% 1/8" RD 3/16" Stag 24 thru .125 40%
1/16" RD 1/8" Stag 26 thru 16 23% 1/8" RD 21/64" Stag .090 13%
G-90 PRE-GALVANIZED STEEL
5/64" RD 1/8" Stag 22 thru 14 35% 5/32" RD 3/16" Stag 20 thru 14 63%
3/32" RD 5/32" Stag 24 thru 14 33% 3/16" RD 7/32" Stag 16 67% .037" RD .055" Strght 26 36%
3/32" RD 3/16" Stag 24 23% 3/16" RD 1/4" Stag 20 thru .125 51%
.117 RD 5/32" Stag 18 51% 3/16 RD 3/8" Stag 18, 14 23% STAINLESS STEEL – TYPE 304
1/8" RD 3/16" Stag 24 thru 11 40% 1/4" RD 5/16" Stag 16, 20 58%
1/8" RD 7/32" Stag 14 thru 12 30% 1/4" RD 3/8" Stag 20 thru .125 40% .033" RD .055" Strght 26 28%
1/8" RD 1/4" Stag 14, 13 23% 1/4" RD 1/2" Stag 16 23% .045" RD .066" Strght 24 37%
9/64" RD 3/16" Stag 18 51% 3/8" RD 9/16" Stag 14 40% .050" RD .066" Strght 26 45%
5/32" RD 3/16" Stag 22 thru 16 63% 1/2" RD 11/16" Stag 14, .125 48% 1/16" RD 7/16" Strght 26 2%
5/32" RD 1/4" Stag 20 thru 10 35% 3/4" RD 1" Stag 16, 11 51% 3/16" RD 3/8" Strght 18 20%
3/16" RD 7/32" Stag 22 thru 16 67% ALUMINUM – ALLOY 5052-H32
3/16" RD 1/4" Stag 24 thru 12 51%
1/16" RD 1/8" Stag 20, 16 23% ALUMINUM – ALLOY 3003-H14
3/16 RD 5/16" Stag 10, 3/16" 33%
3/16" RD 3/8" Stag 14 thru 10 23% 1/16" RD 7/64" Stag 16 30%
.033" RD .055" Strght 20 28%
1/4" RD 5/16" Stag 20 thru 16 58% 3/32" RD 3/16" Stag .080 23%
.040" RD .066" Strght 20 29%
1/4" RD 3/8" Stag 26 thru 1/4" 40% 1/8" RD 3/16" Stag 16 40%
.050" RD .066" Strght 20, 18 45%
17/64" RD 5/16" Stag 20 66% 1/8" RD 21/64" Stag 14 13%
1/2" RD 5/8" Strght 14 50%
5/16" 7/16" Stag 20 thru 1/4” 46% 3/16" RD 1/4" Stag 14 51%
3/8" RD 9/16" Stag 20 thru 1/4" 40% ALUMINUM – ALLOY 6061-T6
1/2" RD 11/16" Stag 20 thru 1/4" 48% BRASS
1/2" RD 3/4" Stag 16 40% 1/8" RD 3/16" Stag 20 thru 14 40%
.045" RD .066" Strght 24 37%
5/8" RD 7/8" Stag 10 thru 1/4" 46% 1/4" RD 3/8" Stag 14 40%
.050" RD .083" Strght 24 29%
3/4" RD 1" Stag 16 thru 1/4" 51% ALUMINUM – ALLOY 7075-0
1" RD 1-3/8" Stag 10 thru 1/4" 48%
1-1/4" RD 1-5/8" Stag 1/4" 54% 3/32" RD 1/4" Stag 16 thru .125 13%
1-1/2" RD 2" Stag 1/4" 51% 5/32" RD 3/8" Stag .090 16%
2" RD 2-1/2" Stag 1/4" 58% BRASS
2-1/2" RD 3" Stag 3/16" 63%
3" RD 3-1/2" Stag 3/16" 67% .020 RD .045" Stag 26 18%
4" RD 4-1/2" Stag 10 72% .033 RD .079" Stag 26 16%
3/32" RD 5/32" Stag 22, 20 33%
G-90 PRE-GALVANIZED STEEL
5/64" RD 1/8" Stag 18 35%
3/32" RD 5/32" Stag 22 thru 18 33%
3/32" RD 3/16" Stag 20 23% H E X H O L E S S TA G G E R E D SQUARE HOLES STRAIGHT
7/64" RD 3/16" Stag 16 31%
1/8" RD 3/16" Stag 20 thru 16 40% PAT T E R N L I N E PAT T E R N
3/16" RD 7/32" Stag 18 67% GAUGE / PLATE GAUGE / PLATE
HOLE CENTERS OPEN AREA HOLE CENTERS OPEN AREA
3/16" RD 1/4" Stag 20 thru 16 51% THICK. THICK.
3/16" RD 3/8" Stag 20 23% CARBON STEEL CARBON STEEL
1/4" RD 5/16" Stag 20 58%
1/4" HEX 9/32" Stag 22 79% .200 SQR 1/4" Strght 22, 20 64%
5/16" RD 7/16" Stag 16 46%
3/8" RD 1/2" Stag 16 51% G-90 PRE-GALVANIZED STEEL 1/4" SQR 5/16" Strght 20 64%
1/4" HEX 9/32" Stag 22 79% 3/8" SQR 1/2" Strght 22, 16 56%
STAINLESS STEEL – TYPE 304 1/2" SQR 5/8" Strght 16 64%
ALUMINUM – ALLOY 3003-H14 1/2" SQR 11/16" Strght 18 53%
.020" RD .045" Stag 30 18% 1/4" HEX 9/32" Stag 20 79% 3/4" SQR 1" Strght 16 56%
1/32" RD 1/16" Stag 26 23%
STAINLESS STEEL - TYPE 304
3/64" RD 3/32" Stag 24 23%
.050" RD 5/64" Stag 26, 24 37% .200 SQR 1/4" Strght 22 64%
1/16" RD 3/32" Stag 22, 20 40% O R N A M E N TA L PAT T E R N S
1/16" RD 7/64" Stag 26, 22 30% ALUMINUM – ALLOY 3003-H14
1/16" RD 1/8" Stag 26 thru 18 23%
5/64" RD 1/8" Stag 22, 20 35% .200 SQR 1/4" Strght 20 64%
DESIGNATION PATTERN GAUGE OPEN AREA
3/32" RD 5/32" Stag 22 thru 14 33%
.117 RD 5/32" Stag 22 51% CARBON STEEL
1/8" RD 3/16" Stag 26 thru 11 40% Cloverleaf Staggered 22 50%
1/8" RD 7/32" Stag 14, 11 30% O B L O N G H O L E S S TA G G E R E D
Grecian Straight Line 22 35%
9/64" RD 3/16" Stag 18 51% Marietta Straight Line 22 45% PAT T E R N
5/32" RD 3/16" Stag 20 thru 16 63% Moire Staggered 22 41% GAUGE / PLATE
3/16" RD 1/4" Stag 24 thru 14 51% Octagon Straight Line 22 35% DESIGNATION PATTERN OPEN AREA
THICK.
3/16" RD 5/16" Stag 11 33% ALUMINUM – ALLOY 3003-H14 CARBON STEEL
1/4" RD 5/16" Stag 22 thru 16 58%
Grecian Straight Line 20 35% 1/8" x 3/4" OBL 7/8" Stag 22 41%
1/4" RD 3/8" Stag 20 thru 3/16" 40%
Windsor Straight Line 20 45% 1/2" x 1" OBL 11/16" Stag 3/8" 65%
5/16" RD 7/16" Stag 16 46%
3/8" RD 9/16" Stag 16, 11 40%
1/2" RD 11/16" Stag 20 thru 3/16" 48%
3/4" RD 1" Stag 16, 11 51%
STAINLESS STEEL – TYPE 316
3/32" RD 5/32" Stag 14 33%

1/8" RD 3/16" Stag 16 40%
5/32" RD 3/16" Stag 16 63%
3/16" RD 1/4" Stag 22 thru 16 51%

S
EXPANDED METAL
LWD LWO
Pitch C. to C. of bond
LWD
REGULAR EXPANDED METAL FLATTENED EXPANDED METAL
Strand
Regular Expanded Metal is an Flattened Expanded Metal is Regular
SWD
Thickness
SWO
open mesh, finished product that Expanded Metal that has been passed
is simultaneously die-cut and through flattening rolls (cold rolled). This
SWD
SWO
expanded as it moves through Strand rolling process reduces the thickness of
Width
progressive dies on a press. In the the sheet, stretches the pattern of the
LWO
expanding process, the metal can sheet, and provides a smooth flat finish. Strand
Thickness
be expanded up to ten times its original size, lose up to 80% of its original All popular sizes are stocked in both LWO
weight per square foot, and still retain form and rigidity. (Regular Expanded regular and flattened sheets.
Metal can also referred to as “Raised” or “Standard” Expanded Metal.)
1/4” #18 REGULAR 3/4” #9 REGULAR
1/4” #18 FLATTENED 3/4” #9 FLATTENED
1/2” #16 REGULAR 1-1/2” #9 REGULAR
1/2” #16 FLATTENED 1-1/2” #9 FLATTENED
47
EXPANDED METAL
N O M E N C L AT U R E
DIAMOND - The open area formed by strands and bonds. Normally the open area is diamond shaped.
STRAND - The single metal strip that forms the perimeter of the diamond. The strand thickness is the Bond
thickness of the metal from which the expanded metal is produced. The strand width is the amount of
LWO
SWD
material advanced before forming the next diamond.
SWO
BOND - The point where adjacent strands intersect. The bond width is always twice the width of the strand.
LWD - Long way of the diamond - indicates the distance from center-to-center of linear bonds in the long direction.
SWD - Short way of the diamond - indicates the distance from center-to-center of linear bonds in the short direction.
LWO - Long way of the opening - indicates the clear opening of the diamond in the long direction.
SWO - Short way of the opening - indicates the clear opening of the diamond in the short direction.
LWD
PAT T E R N O R I E N TAT I O N
Stock sheets are produced with the LWD running in the length of the sheet Strand Thickness Strand Width
and the SWD running in the width of the sheet. For custom applications, we can
provide reverse flow sheets up to certain size constraints. Contact our sales staff
for custom sheet pricing and availability.
LWD (Length) M AT E R I A L S / F I N I S H E S
All expanded metals are available in a variety of metals; carbon steel,
stainless steel, and aluminum. Carbon steel expanded metal is lightly oiled and
should be cleaned prior to the application of finish coatings. Additionally,
SWD (Width)
carbon steel expanded metals can easily be painted or galvanized to enhance

corrosion resistance. (Certain popular carbon steel items are stocked galvanized.)
Aluminum products are stocked mill finish and can be anodized or epoxy
coated. Stainless steel products are similarly stocked with a mill finish. Stainless
steel can be electroplated to provide for a bright finish or abrasive blasted to
provide a uniform matte finish.
FABRICATION
SHEARING
Indiana Gratings has fabrication capacity and will
gladly shear perforated and expanded metals to
specification. When shearing expanded metals, close
attention should be paid to bond and margin
requirements. Pieces can be “Bond Sheared”
or “Random Sheared” subject to
manufacturing tolerances.
Bond shearing produces pieces with equal, closed BOND SHEAR RANDOM SHEAR
diamond configurations on all four sides. Random shearing produces pieces with partial diamonds on up to
all four sides. Random sheared pieces often have sharp exposed partial strands which should be protected by
“U” edging or finish framing.
EXAMPLE A EXAMPLE B EXAMPLE C EXAMPLE D

Bond sheared all four sides Bond sheared one side, one end, Bond sheared two sides (SWD), Random sheared all sides and ends
random sheared one side, one end random sheared two ends (LWD)
U-EDGING ACCESSORIES HOW TO SPECIFY / ORDER

MATERIAL: Indicate type of material desired (carbon steel, stainless steel, or
When finish framing of expanded or perforated metals is desired, U-Edging is a
aluminum).
popular option. Manufactured from 14, 16 or 18 gauge carbon steel in stock lengths,
U-Edging is available 1” or 1-1/2” wide with openings that accommodate various
STYLE NUMBER: Indicate style number (such as 3/4” - #9R) which will indicate
sheet thicknesses. Aluminum and stainless steel U-edging is available on special order.
the desired diamond size and sheet thickness.
SURFACE: Confirm desired surface, regular or flattened sheet.
QUANTITY & SIZE: Indicate quantity desired and piece sizes including SWD and
1/4"
LWD. Provide material list for cut-to-size pieces and sketches for irregular
1/8"
1/16"
shapes. For sheared to size orders, review shearing options illustrated above.
1" or 1-1/2" 1" or 1-1/2" 1" or 1-1/2" FINISHING: Specify any special finish requirements (galvanizing, paint or anodizing).
PART NO. U-063-S PART NO. U-125-S PART NO. U-250-S

EXPANDED METAL STOCK LIST
E X PA N D E D M E TA L S T O C K L I S T
WEIGHT PER DESIGN SIZE CENTER-TO-CENTER (INCHES) SIZE OF OPENING (INCHES) STRAND SIZE (INCHES) GAUGE OVERALL THICKNESS PERCENT SHEET SIZES (FEET)
STYLE NO.
SQ. FT. (POUNDS) SWD LWD SWO LWO THICKNESS WIDTH USED (INCHES) OPEN AREA SWD X LWD
CARBON STEEL - REGULAR

1/4" - #20 R 0.86 0.255 1.000 11/64 23/32 0.036 0.073 20 0.125 45% 4x8
1/4" - #18 R 1.14 0.255 1.000 11/64 23/32 0.048 0.073 18 0.125 43% 3x8, 4x8
1/2" - #20 R 0.43 0.500 1.200 7/16 15/16 0.036 0.070 20 0.124 80% 3x8, 4x8
1/2" - #18 R 0.70 0.500 1.200 3/8 15/16 0.048 0.088 18 0.155 77% 4x8, 6x8
1/2" - #16 R 0.86 0.500 1.200 23/64 15/16 0.060 0.088 16 0.157 71% 4x8, 4x10
1/2" - #13 R 1.46 0.500 1.200 11/32 15/16 0.090 0.093 13 0.182 58% 4x8, 4x10
3/4" - #16 R 0.54 0.920 2.000 13/16 1-3/4 0.060 0.092 16 0.186 85% 3x10, 4x8, 4x10
3/4" - #13 R 0.80 0.925 2.000 3/4 1-11/16 0.090 0.096 13 0.195 78% 4x8, 4x10
3/4" - #10 R 1.20 0.925 2.000 3/4 1-5/8 0.090 0.144 13 0.282 77% 4x8
3/4" - #9 R 1.80 0.925 2.000 3/4 1-1/2 0.134 0.148 10 0.300 68% 4x8, 4x10
5x10, 6x8, 6x10
1-1/2" - #16 R 0.40 1.330 3.000 1-1/4 2-5/8 0.060 0.108 16 0.211 89% 4x8
1-1/2" - #13 R 0.60 1.330 3.000 1-3/16 2-1/2 0.090 0.107 13 0.215 86% 4x8
1-1/2" - #9 R 1.20 1.330 3.000 1-3/16 2-1/2 0.090 0.140 10 0.295 75% 4x8, 4x10, 5x8
5x10, 6x8, 6x10
1-1/2" - #6 R 2.45 1.330 3.000 1-1/16 2-1/4 0.200 0.200 3/16" 0.425 63% 4x8, 4x10
6x10, 6x12
CARBON STEEL - FLATTENED
1/4" - #20 F 0.84 0.258 1.050 3/32 25/32 0.030 0.086 20 0.030 35% 4x8
1/4" - #18 F 1.12 0.258 1.050 3/32 25/32 0.040 0.085 18 0.040 35% 4x8
1/2" - #20 F 0.40 0.500 1.250 3/8 1 0.030 0.074 20 0.029 65% 4x8
1/2" - #18 F 0.66 0.500 1.250 9/32 1 0.040 0.095 18 0.039 60% 4x8, 4x10
1/2" - #16 F 0.80 0.500 1.250 1/4 1 0.050 0.100 16 0.050 60% 3x8, 3x10,4x8,
4x10, 5x8, 5x10,
6x8, 6x10
1/2" - #13 F 1.38 0.500 1.250 1/4 1 0.070 0.120 13 0.070 57% 4x8,4x10, 6x10
3/4" - #16 F 0.50 0.925 2.100 3/4 1-3/4 0.048 0.112 16 0.048 74% 4x8, 4x10
3/4" - #14F 0.65 0.925 2.100 11/16 1-13/16 0.063 0.115 14 0.061 73% 3x8, 3x10, 4x8
3/4" - #13 F 0.75 0.925 2.100 11/16 1-25/32 0.070 0.120 13 0.070 73% 4x8, 4x10
3/4" - #10 F 1.14 0.923 2.100 5/8 1-3/4 0.070 0.160 13 0.700 68% 4x8
3/4" - #9 F 1.70 0.923 2.100 5/8 1-11/16 0.115 0.160 10 0.110 65% 3x8, 3x10, 4x8,
4x10, 4x12, 5x8
5x10, 5x12
6x8, 6x10, 6x12
1" - #16 F 0.42 1.080 2.560 7/8 2-1/4 0.048 0.115 16 0.048 78% 4x8
1" - #9 F 1.37 1.010 2.560 7/8 2-1/4 0.120 0.156 10 0.118 61% 4x8
1-1/2" - #16 F 0.37 1.330 3.200 1-1/16 2-3/4 0.050 0.120 16 0.048 82% 4x8
1-1/2" - #13 F 0.56 1.330 3.200 1-1/16 2-3/4 0.070 0.130 13 0.070 80% 4x8, 4x10
1-1/2" - #9 F 1.12 1.330 3.200 1.00 2-5/8 0.110 0.165 10 0.110 77% 4x8, 4x10, 6x8,
6x10
2" - #9 F 0.81 1.830 4.360 1.45 3-11/16 0.134 0.150 10 0.280 83% 4x8
CARBON STEEL
ALUMINUM - FLATTENED
ALLOY 3003-H14
1/2" - .051 RA 0.26 0.500 1.200 3/8 15/16 0.050 0.092 16B&S 0.158 70% 4x8
1/2" - .081 RA 0.43 0.500 1.200 3/8 15/16 0.080 0.094 12B&S 0.186 60% 3x8, 4x8
3/4" - .051 RA 0.17 0.920 2.000 13/16 1-3/4 0.050 0.109 16B&S 0.200 90% 4x8
3/4 - .081 RA Lt 0.32 0.920 2.000 3/4 1-11/16 0.080 0.126 12B&S 0.220 76% 4x8
3/4 - .080 RA Hvy 0.41 0.920 2.000 3/4 1-11/16 0.080 0.164 12B&S 0.300 74% 4x8
3/4" - .125 RA 0.65 0.920 2.000 11/16 1-11/16 0.125 0.170 8B&S 0.305 66% 4x8
1-1/2" .081 RA 0.16 1.330 3.000 1-3/16 2-1/2 0.063 0.110 14B&S 0.240 87% 4x8
1-1/2" - .125 RA 0.42 1.330 3.000 1-3/16 2-1/2 0.125 0.160 8B&S 0.300 78% 4x8
CARBON STEEL
ALUMINUM - FLATTENED
ALLOY 3003-H14
1/2" - .051 FA 0.25 0.500 1.250 5/16 1.00 0.040 0.100 16B&S 0.040 64% 4x8
1/2" - .081 FA 0.40 0.500 1.250 5/16 1.00 0.060 0.108 12B&S 0.060 59% 3x8, 4x8
3/4" - .051 FA 0.16 0.920 2.130 3/4 1-13/16 0.040 0.130 16B&S 0.040 76% 4x8
3/4 - .081 FA Lt 0.30 0.920 2.130 11/16 1-3/4 0.070 0.140 12B&S 0.070 72% 3x8, 4x8
3/4 - .081 FA Hvy 0.38 0.920 2.130 11/16 1-3/4 0.070 0.180 12B&S 0.070 65% 3x8, 4x8
3/4" - .125 FA 0.62 0.920 2.130 5/8 1-3/4 0.095 0.198 8B&S 0.095 63% 4x8
1-1/2" .081 FA 0.20 1.330 3.135 1-1/16 2-3/4 0.058 0.168 12B&S 0.060 77% 4x8
1-1/2" - .125 FA 0.40 1.330 3.135 1.00 2-3/4 0.080 0.218 8B&S 0.080 70% 4x8
CARBON
STAINLESS STEEL - FLATTENED
STEEL TYPE 304 – REGULAR (* INDICATES ALSO AVAILABLE IN TYPE 316 STAINLESS)
1/4" - #18 RSS 1.47 0.250 1.000 1/8 5/8 0.050 0.087 18 0.300 30% 4x8
1/2" - #18 RSS 0.75 0.500 1.200 7/16 15/16 0.050 0.088 19 0.164 77% 4x8
1/2" - #16 RSS 0.94 0.500 1.200 7/16 15/16 0.062 0.088 16 0.164 70% 4x8
1/2" - #13 RSS 1.88 0.500 1.200 5/16 7/8 0.093 0.120 13 0.225 58% 4x8
3/4" - #16 RSS* 0.62 0.925 2.000 13/16 1-3/4 0.062 0.108 16 0.200 85% 4x8
3/4" - #13 RSS 0.93 0.925 2.000 3/4 1-11/16 0.093 0.110 13 0.200 78% 3x8, 4x8
3/4" - #9 RSS 2.05 0.925 2.000 11/16 1-1/2 0.140 0.160 10 0.300 67% 4x8
1-1/2" - #16 RSS 0.45 1.335 3.000 1-1/4 2-3/4 0.062 0.116 16 0.220 89% 4x8
1-1/2" - #9 RSS 1.37 1.330 3.000 1-1/4 2-5/8 0.140 0.155 10 0.280 75% 4x8
CARBON
STAINLESS STEEL
STEEL- FLATTENED
TYPE 304 – FLATTENED (* INDICATES ALSO AVAILABLE IN TYPE 316 STAINLESS)
1/4" - #18 FSS 1.43 0.250 1.000 5/64 21/32 0.047 0.090 18 0.047 29% 4x8, 4x10
1/2" - #18 FSS* 0.70 0.500 1.275 5/16 1.00 0.040 0.099 18 0.040 68% 4x8
1/2" - #16 FSS* 0.88 0.500 1.275 5/16 1.00 0.050 0.099 16 0.050 60% 3x8, 4x8, 4x10
1/2" - #13 FSS* 1.78 0.500 1.275 1/4 1.00 0.080 0.099 13 0.080 56% 4x8
3/4" - #16 FSS* 0.48 0.925 2.100 3/4 1-13/16 0.050 0.126 16 0.050 75% 4x8
3/4" - #13 FSS 0.59 0.925 2.100 5/8 1-3/4 0.080 0.120 13 0.080 74% 4x8
3/4" - #9 FSS* 0.88 0.925 2.100 5/8 1-5/8 0.130 0.170 10 0.119 64% 4x8, 4x10
1-1/2" - #16 FSS 0.43 1.335 3.150 1-1/16 2-3/4 0.050 0.128 16 0.050 83% 4x8
1-1/2" - #13 FSS 0.68 1.335 3.150 1.00 2-5/8 0.080 0.126 13 0.080 79% 4x8
1-1/2" - #9 FSS 1.35 1.335 3.150 1.00 2-1/2 0.130 0.170 10 0.119 76% 4x8
49
EXPANDED METAL GRATING
STYLES
Expanded Metal Grating is available in the following distinct styles:
2.0 LB., 3.0 LB., 4.0 LB., 5.0 LB., 6.25 LB., 7.0 LB. 3.14 LB. 4.27 LB.
E X PA N D E D M E TA L C AT W A L K G R AT I N G
When considering lightweight, economical catwalk alternatives, consider reverse flow Expanded Metal
Catwalk Grating. Manufactured with the LWD spanning the width (short dimension) of the sheet, Catwalk
Grating is commonly stocked in 2’-O, 2’-6 and 4’-O wide sheets. These products can often be installed on
walkways without waste or additional shearing charges.
SWD
LWD (Span)
LWD (Span)
SWD
•• CONVEYOR
CONVEYOR WALKWAYS
WALKWAYS
•• SERVICE
SERVICE PLATFORMS
•• SECURITY
SECURITY FENCING
FENCING
STANDARD FLOW EXPANDED METAL GRATING REVERSE FLOW EXPANDED METAL CATWALK GRATING
E X PA N D E D M E TA L G R AT I N G L O A D TA B L E E X PA N D E D M E TA L G R AT I N G L O A D TA B L E ( C O N T. )
CLEAR LOAD LOAD IN POUNDS CLEAR LOAD LOAD IN POUNDS
GRATING STYLE GRATING STYLE
SPAN COND. 50 100 200 300 500 SPAN COND. 50 100 200 300 500
2'-0" U .073 .146 .293 .440 2'-0" U .025 .050 .100 .150 .250
3.0# C .068 .132 .263 .395 5.0# C .023 .047 .093 .140 .234
CARBON 2'-6" U .155 .311 CARBON 3'-0" U .133 .265 .526
C .116 .228 C .078 .154 .305
STEEL 3'-0" U .330 .660 STEEL 4'-0" U .355 .708
C .192 .380 C .155 .306
2'-0" U .057 .115 .230 .346 2'-0" U .017 .035 .072 .110 .181
3.14# C .049 .094 .187 .280 6.25# C .015 .030 .060 .090 .150
CARBON 2'-6" U .129 .259 .517 CARBON 3'-0" U .092 .184 .368 .552
C .099 .198 .395 C .054 .108 .216 .324
STEEL 3'-0" U .315 .626 STEEL 4'-0" U .285 .576
C .180 .357 C .117 .236
2'-0" U .037 .073 .147 .222 .370 2'-6" U .039 .079 .157 .236 .392
4.0# C .031 .064 .128 .192 .320 7.0# C .030 .061 .121 .182 .303
CARBON 2'-6" U .068 .135 .274 .410 CARBON 3'-0" U .085 .170 .336 .504
C .060 .120 .240 .360 C .051 .101 .201 .301
STEEL 3'-0" U .180 .358 STEEL 4'-0" U .210 .420
C .101 .205 C .095 .190
2'-0" U .038 .079 .160 .240 .400 2'-0" U .047 .094 .189 .283
4.27# C .038 .078 .156 .235 .395 C .046 .092 .184 .277
2'-6" U .078 .156 .312 .470 2.0# 2'-6" U .108 .216
CARBON C .081 .163 .327 .491 ALUMINUM C .092 .181
STEEL 3'-0" U .186 .373 3'-0" U .213 .430
C .124 .250 C .125 .255
Loads and values are based upon physical testing conducted by an independent testing laboratory. Clear span is the distance between supporting members measured from the inside point of support of one member to the
inside point of support of the next supporting member. Load Conditions: U = Uniform Load per square foot. C = Concentrated Load per foot of width perpendicular to SWD. Values indicated represent deflection based upon the
load conditions, clear span and loads indicated.
E X PA N D E D M E TA L G R AT I N G S T O C K L I S T
WEIGHT PER DESIGN SIZE CENTER-TO-CENTER (INCHES) SIZE OF OPENING (INCHES) STRAND SIZE (INCHES) OVERALL THICKNESS PERCENT SHEET SIZES (FEET)
GRATING STYLE
SQ. FT. (POUNDS) SWD LWD SWO LWO THICKNESS WIDTH (INCHES) OPEN AREA SWD X LWD
CARBON STEEL EXPANDED METAL GRATING
3.0# 3.00 1.33 5.33 0.94 3.44 0.183 0.264 0.540 73% 4x8, 4x10, 6x8, 6x10, 6x12
3.14# 3.14 2.00 6.00 1.63 4.88 0.250 0.312 0.656 74% 4x8, 4x10, 6x10
4.0# 4.00 1.33 5.33 0.94 3.44 0.215 0.300 0.618 65% 4x8, 4x10, 5x10, 6x8, 6x10, 6x12
4.27# 4.27 1.41 4.00 1.00 2.88 0.250 0.300 0.625 58% 4x8, 4x10, 6x8, 6x10
5.0# 5.00 1.33 5.33 0.81 3.38 0.215 0.375 0.655 52% 4x8, 4x10, 5x10
6.25# 6.25 1.41 5.33 0.81 3.38 0.312 0.350 0.715 55% 4X8
7.0# 7.00 1.41 5.33 0.81 3.38 0.312 0.388 0.750 60% 4X8
CARBON STEEL EXPANDED
- FLATTENED
METAL CATWALK GRATING
3.0# 3.00 1.33 5.33 0.94 3.44 0.183 0.264 0.540 73% 8x4, 10x2, 10x2'-6
CARBON STEEL
ALUMINUM ALLOY
- FLATTENED
5052-H32 EXPANDED METAL GRATING
2.0# 2.00 1.33 5.33 0.94 3.44 0.250 0.387 0.730 77% 4x8
STAINLESS
CARBON STEEL
STEEL
- FLATTENED
TYPE 304 EXPANDED METAL GRATING
4.5# 4.50 1.4 4.00 1 2.88 0.250 0.300 0.630 58% 4x8, 4x10

WIRE CLOTH
WOVEN WIRE CLOTH & CRIMP STYLES
TYPE PC - PLAIN CRIMP TYPE IC - INTERCRIMP

Square pattern wire cloth using warp and fill wires of equal size. Warp wires Wire cloth manufactured with crimped warp wires filled at every other
pass over and under fill wires in an alternating pattern at adjacent intersections. crimp with fill wires. The resulting cloth provides superior rigidity and
greater stability. Popular for screens and architectural applications.
TYPE LC - LOCK CRIMP T Y P E F T - F L AT T O P C R I M P

Versatile wire cloth manufactured to hold accurate openings. Each intersection All crimping is offset to one side producing a wire cloth with all wire
is formed with straight sections of fill wires woven within straight sections of surfaces in a single plane on the top. This even surface allows for the
warp wires. Fill wires are woven in an alternating pattern, top and bottom. smooth flow of materials over the top surface of the cloth.
WELDED
WIRE CLOTH
Welded Wire Cloth is available in
carbon steel and select stainless steel
alloys. Manufactured in a wide variety of
wire diameters, welded cloth is produced in a
square or rectangular mesh. Warp and fill wires
lay flat and each intersection of Welded Wire
Mesh is electrically welded for maximum cross
sectional strength. Welded Wire Mesh is available in
roll or flat panel form.
The strength and versatility created by the all-welded

construction make Welded Wire Cloth a preferred choice
for designers and fabricators. This rigid product can be
sheared, formed, fabricated and finished to the most
demanding specifications.
Popular for handrail infill panels, Welded Wire Cloth is available with attractive square
or rectangular mesh openings. Properly specified, Welded Wire Cloth conforms to current ADA
requirements. Indiana Gratings will promptly provide stock panels for your own fabrication, or, if
desired, we will gladly fabricate infill panels complete with framing and connection plates. Just ask!
51
WIRE CLOTH
M AT E R I A L S A V A I L A B L E
WIRE CLOTH IS COMMONLY AVAILABLE IN THE FOLLOWING MATERIALS:
CARBON STEEL – plain low carbon steel typically ranging from C1006 to
C1012 alloy, drawn from rod. Combines strength and weldability
with economy.
GALVANIZED BEFORE WOVEN – Carbon steel coated with a light layer of zinc
during the manufacturing process. Adequate corrosion resistance is
provided for most indoor applications, but not recommended for
outdoor installations.
GALVANIZED AFTER WOVEN – Carbon steel coated with a heavy layer of zinc after
the manufacture of the mesh. Excellent for long term corrosion protection.
HIGH CARBON STEEL – Abrasion resistant steel used for applications facing
significant wear such as media filtering or sorting. Abrasion resistant
steel can be difficult to weld, consider mechanical fastening to
supporting structure.
N O M E N C L AT U R E
STAINLESS STEEL – Commonly manufactured in 300 series alloys. Type 304 is
most popular, but also available in types 309, 310, 316, 321 & 347. Series CALENDARED WIRE CLOTH – wire cloth that has been passed through heavy
400 alloys are also available on special order.
rollers to reduce the thickness of the material or flatten the wire
intersections to produce a smooth surface.
ALUMINUM – Light weight and mildly resistant to corrosion, aluminum alloys
are readily available. Alloy 1350 is most common and can be easily welded
and anodized. Also available are alloys 5056 and 6061. CLEAR OPENING – the space between adjacent parallel wires.
NICKEL BASED ALLOYS – Inconel 600, Monel 400, Nichrome V and Hastalloy CRIMPS – corrugations placed in the wire which allow the wires to be
C276 offer specific characteristics desirable in specialized environments. woven together. The placement and style of the crimps determine the
location of the intersections and permit tight locking of the wires.
SPECIALTY ALLOYS – Copper based alloys, bronze, brass and titanium are also
available for all woven products. Contact our sales engineers for assistance FILL WIRES – wires running across the width or short way of the material
in selecting the proper specialty alloy for your application. as woven. (Also referred to as shute or cross wires.)
GAUGE – a measure of wire diameter commonly used by manufacturers. To

avoid confusion between ferrous and non-ferrous gauge dimensions,
always specify your desired wire diameter in decimal inches.
HARDWARE CLOTH – square mesh cloth, galvanized after assembly and

available in either woven or welded construction.
MESH – the number of openings in a lineal inch measured from the

center of one wire to a point one inch distant.
OPEN AREA – the proportion of open space as a percentage of the total

material area.
SELVAGE – a finished edge used to prevent fraying or unraveling of woven

wire cloth.
WARP WIRES – wires running parallel to the length or long way of the
material as woven.

WIRE CLOTH
WIRE MESH SPACINGS
Woven and Welded Wire
WIRE SIZE DIAMETERS
Cloth are identified and Wire Spacing NOTE: WHEN ORDERING WIRE CLOTH, IT IS PREFERABLE TO STATE THE EXACT WIRE
manufactured based (center to center of wires) DIAMETER IN DECIMAL FRACTIONS OF AN INCH RATHER THAN WIRE GAUGE NUMBERS.
upon their mesh sizes Fill Wire Diameter CONFUSION BETWEEN STEEL WIRE GAUGE NUMBERS AND NON-FERROUS GAUGE
(wire spacings). These (running width of material) NUMBERS CAN OFTEN LEAD TO IMPROPER OPENINGS BEING SPECIFIED.
mesh sizes are expressed
in either center-to-center
wire spacings, clear .430
opening between the
wires, or mesh count.
(center to center of wires)

Clear Opening Size
Wire Spacing
.375
(
.362
Warp Wire Diameter .312

(running length of material)
.263
.250
WIRE CLOTH WITH MESH SIZES LESS THAN ONE INCH .225
CAN BE CLEARLY SPECIFIED IN ONE OF THREE WAYS:
• Center-to-Center Spacing: measuring the mesh from the center of one .207
wire to the center of the next adjacent wire.
• Opening Size: Measuring the clear 1/4" Center .192
to Center
opening between the wires. .170 Clear
Opening
.177
• Mesh Count: Measuring the number
of openings in the mesh per lineal .162
inch of material, expressed as a count.
.148
For the material at right, which is a .135
Wire Cloth with .080 wires spaced .120
at 1/4" on center, the product may
be specified in any of the following .105
manners: .092
1 • Center-to-Center Spacing:
.0 1/4" mesh, center-to-center, .080
.080 wire .072
opening,
• Opening Size: .170 clear
opening, .080 wire .063
.0 • Mesh Count: 4 Mesh, 1"
.054
.080 wire .080 Wire 4 Openings - "4 Mesh"
.047
Wire Wire
WIRE CLOTH WITH MESH SIZES EQUAL TO OR GREATER THAN .035
ONE INCH MUST BE SPECIFIED IN ONE OF TWO WAYS:
• Center-to-Center Spacing: Measuring the 2" Center to Center PERCENTAGE OF OPEN AREA
mesh from the center of one wire to the 1.813" Clear Opening Open area, expressed as a percentage, is the ratio of clear area to
center of the next adjacent wire. screen area for a specific wire cloth. This ratio is useful for
• Opening Size: Measuring the clear comparing how readily various materials or elements will flow
openings between the wires. through the cloth.
To calculate the open area of square mesh wire cloth, use the
For the material to the right, which following formula:
is Wire Cloth with .187 wires spaced
.187 Wire
at 2" on center, the product may be (MESH SPACING – WIRE DIAM)2
properly specified in either of the x 100 = % OPEN AREA
following manners: (MESH SPACING)2
• Center-to-Center Spacing: EXAMPLE: To find the open area for square mesh wire cloth using
2" Mesh, .187 wire 1/2" mesh , .120 wire:
• Opening Size:
1.813 clear opening, .187 wire (.500 – .120)2
x 100 = 57.8% OPEN AREA
(.500)2
53
WIRE CLOTH
HOW TO
ORDER / SPECIFY
CONSTRUCTION – Woven or Welded (For woven
products, identify crimp style).
MATERIAL – Indicate material such as plain

carbon steel, stainless steel, aluminum or
other alloy.
WIRE DIAMETER – In decimal, thousandths of

one inch.
WIRE SPACING – Specify square, rectangular or

specialty configuration with wire spacing
center-to-center, clear opening or mesh count.
SIZES – Indicate sheet or roll width and length,

or width and length of cut-to-size pieces.
WIRE CLOTH STOCK LIST OTHER POPULAR SIZES

MESH WIRE DIAMETER (IN CLEAR OPENING (IN SHEET OR ROLL SIZES MESH WIRE DIAMETER (IN CLEAR OPENING (IN SHEET OR ROLL SIZES
INCHES) INCHES) (IN FEET) INCHES) INCHES) (IN FEET)
WELDED CARBON STEEL - NO FINISH WOVEN CARBON STEEL - NO FINISH
TYPE PC - WOVEN WIRE CLOTH
4” Sq. Mesh .225 3.775 7’ x 20’
3” Sq. Mesh .244 2.756 5’ x 12’ Sq. 2 Mesh .148 0.352 4’ x 100’
2” Sq. Mesh .244 1.756 5’ x 12’ Sq. 2 Mesh .135 0.365 4’ x 100’
2” Sq. Mesh .185 1.815 5’ x 10’ Sq. 2 Mesh .120 0.380 4’ x 100’
2” Sq. Mesh .135 1.865 5’ x 10’ Sq. 3 Mesh .105 0.228 4’ x 100’
2” Sq. Mesh .118 1.882 4’ x 8’ Sq. 3 Mesh .063 0.270 4’ x 100’
1” Sq. Mesh .135 0.865 5’ x 10’ Sq. 4 Mesh .080 0.170 4’ x 100’
1” Sq. Mesh .118 0.882 4’ x 8’ Sq. 4 Mesh .063 0.187 4’ x 100’
Sq. 4 Mesh .047 0.203 4’ x 100’
WELDED CARBON STEEL - HOT DIP GALVANIZED
WOVEN CARBON STEEL - PRE-GALVANIZED FINISH
2” Sq. Mesh .187 1.813 5’ x 10’
2” Sq. Mesh .118 1.882 5’ x 10’ 2” Sq. Opening .120 2.000 4’ x 10’
1” Sq. Mesh .118 0.882 5’ x 10’ 1” Sq. Opening .120 1.000 4’ x 10’
Sq. 2 Mesh .041 0.459 3’ x 100’
Sq. 2 Mesh .041 0.459 4’ x 100’ WOVEN 304 STAINLESS STEEL
Sq. 4 Mesh .025 0.225 3’ x 100’ TYPE PC - WOVEN WIRE CLOTH
Sq. 4 Mesh .025 0.225 4’ x 100’
Rect. 18 x 14 Mesh .009 .047 x .062 4’ x 100’ 2” Sq. Opening .250 2.000 4’ x 10’
2” Sq. Opening .120 2.000 4’ x 10’
WOVEN CARBON STEEL - NO FINISH 1” Sq. Opening .120 1.000 4’ x 10’
TYPE PC - WOVEN WIRE CLOTH 1/2” Sq. Opening .120 0.500 4’ x 100’
Sq. 2 Mesh .135 0.365 4’ x 100’
Sq. 2 Mesh .063 0.437 4’ x 100’ Sq. 2 Mesh .120 0.380 4’ x 100’
Sq. 2 Mesh .080 0.420 4’ x 100’ Sq. 2 Mesh .015 0.395 4’ x 100’
Sq. 4 Mesh .047 0.203 4’ x 100’ Sq. 2 Mesh .080 0.420 4’ x 100’
Sq. 6 Mesh .035 0.132 4’ x 100’ Sq. 2 Mesh .063 0.437 4’ x 100’
Sq. 8 Mesh .028 0.097 4’ x 100’ Sq. 2 Mesh .047 0.453 4’ x 100’
Sq. 4 Mesh .047 0.203 4’ x 100’
WOVEN CARBON STEEL - NO FINISH
TYPE IC - INTERCRIMP Sq. 4 Mesh .035 0.215 4’ x 100’
Sq. 4 Mesh .028 0.222 4’ x 100’
2” Sq. Opening .192 2.000 4’ x 10’ Sq. 6 Mesh .047 0.120 4’ x 100’
1-1/2” Sq. Opening .192 1.500 4’ x 10’ Sq. 6 Mesh .063 0.104 4’ x 100’
1/2” Sq. Opening .120 0.500 5’ x 100’ Sq. 10 Mesh .032 0.068 4’ x 100’
Sq. 10 Mesh .025 0.075 4’ x 100’
WOVEN CARBON STEEL - NO FINISH Sq. 12 Mesh .035 0.048 4’ x 100’
TYPE LC - LOCK CRIMP Sq. 12 Mesh .018 0.065 4’ x 100’
4” Sq. Opening .250 4.000 4’ x 10’ WOVEN ALUMINUM - MILL FINISH

3” Sq. Opening .250 3.000 4’ x 10’ TYPE PC - WOVEN WIRE CLOTH
2” Sq. Opening .250 2.000 4’ x 10’
1-1/2” Sq. Opening .250 1.500 4’ x 10’ 2” Sq. Opening .250 2.000 4’ x 10’
1” Sq. Opening .250 1.000 4’ x 10’ 1” Sq. Opening .120 1.000 4’ x 10’
WOVEN 304 STAINLESS STEEL

1” Sq. Opening .120 1.000 5’ x 100’

1/2” Sq. Opening .120 0.500 4’ x 100’
1/2” Sq. Opening .120 0.500 5’ x 100’
Sq. 2 Mesh .063 0.437 4’ x 100’
Sq. 2 Mesh .080 0.420 4’ x 100’
Sq. 4 Mesh .047 0.203 4’ x 100’
Sq. 6 Mesh .035 0.132 4’ x 100’
Sq. 8 Mesh .028 0.097 4’ x 100’

S
a
aa
aaa 5/16"
5/16"
1/2"
S U R FA C E S
TYPE C-01
1/2"
CROSS HATCHED STANDARD
FLUTED
1/4"
TYPE C-02
Also Available
SUPERTREAD CAST STAIR NOSINGS & TREADS
afety, durability and impact resistance are just some of the outstanding features that make IGI SuperTread Nosings and Treads preferred components for stairs and landings.
Commonly available in cast iron and cast aluminum, SuperTread products are also readily available in extruded aluminum carriers with a solid abrasive fill.
Maximum pedestrian safety is provided by the anti-slip walking surface and OSHA conforming barrier free installation. SuperTread Nosings form a highly visible, defined and
durable lead edge at the primary point of contact on stairs and landings. Impact resistant, SuperTread Nosings and Treads protect exposed concrete edges that are often prone to
chipping and cracking.
CAST NOSINGS & TREADS

IGI SuperTread Stair Nosings and Treads are sand finish castings with abrasive
embedded to a minimum depth of 1/16 inch in the wear surface. Cross hatching or
fluting is clean and well defined to a minimum depth of 1/16 inch. Available in cast iron,
cast aluminum and cast bronze abrasive in lenghts up to 8’-0”.
STAIR NOSINGS
For concrete stairs, 3" and 4"

stock widths available for
immediate shipment.
TYPE C-01-SP
1/4"
Primarily for use as nosing for

steel pan – concrete filled tread.
5/16"
For use on steel pan –

concrete filled treads.
PLAIN
3/4"
1"
3/4"
1"
1-1/2
1-1/16"
TYPE C-03
stairs.
TYPE C-20
5/16"
For concrete stairs or

structural treads, 3" to
12" widths available.
TYPE C-04
5/16"
Similar to type C-03

with larger nosing.
TYPE C-16
5/16"
Max. Available in widths up to

12", can be used as nosing
or placed over existing worn
One edge rounded, for use

on steel pan tread or as
grating nosing.
ANCHORS
WIDTH
To
To
To
To
6”
12”
36”
40”
CAST IRON
THICKNESS
5/16”
3/8”
1/2”
5/8”
STRUCTURAL TREADS
1-1/2"
3/4"
3/4"
1-1/2"
1-1/2"
STANDARD
OPTIONAL
1"
3/4"
3/4"
Concealed integral cast

anchor.
MINIMUM THICKNESS FOR VARIOUS CASTING SIZES
WIDTH
To
To
To
To
ALUMINUM
12”
24”
30”
40”
TYPE C-05
TYPE C-06
TYPE C-117-L
1"
Bolts to support angles.

Can be drilled to
facilitate plate risers.
TYPE C-07
For open risers,
bolts to support
angles.
Reversible tread for

open risers, bolts to
support angles.
TYPE C-117
Double nosed tread
for open risers.
Reversible tread with

end lugs for bolting to
stringers.
1-1/2” deep steel wing anchor.
THICKNESS
5/16”
3/8”
1/2”
5/8”
CURB BARS
TYPE CB-150
1-1/2"
3/4"
3/4"
3/4"
1-3/8"
1-1/2"
1-1/2"
1-3/4"
2"
2"
2"
2"
2"
1-1/2” x 1-1/2” x 3/8” thick.
1"
3/4"
3/4"
TYPE C-05-L
TYPE C-06-L
2" for 5" Wide Tread

3-1/2" for 7" Wide Tread
TYPE CB-250
1"
Similar to Type C-05 with

the addition of end bolting
lugs.
TYPE C-07-L
Open risers with end lugs
for bolting to stringers.
Reversible tread for open

risers with end lugs for
bolting to stringers.
TYPICAL SPACING FOR HOLES IN END LUGS

AND DRILLING FOR CARRIER ANGLES
1-1/4" for 4" Wide Tread 1-3/8"

1-1/2"
1-1/2"
1-3/4"
2"
2"
2"
2"
2"
2-1/2” x 2-1/2” x 1/2” thick.
ANCHORS BENT TO SHAPE PRIOR TO

INSTALLATION IN FIELD.
55
aa
a
a
SUPERTREAD EXTRUDED STAIR NOSINGS & TREADS
EXTRUDED ALUMINUM NOSINGS
IGI SuperTread Extruded Aluminum Nosings are manufactured with a base container
of 6061-T5 extruded aluminum filled with an abrasive mixture of aluminum oxide and
silicon blend, compacted and bonded by 100% solid epoxy. Manufactured in lengths up to
24’-0”. Standard colors are black and yellow. For additioanl colors, see below.
All nosings can be shipped with

factory applied protective tape for a
nominal charge, providing protection
of exposed surfaces during installation.
aC O L O R S AVA I L A B L E
BLACK
DARK BROWN
LIGHT BROWN
DARK GRAY
LIGHTGRAY
GRAY SILVER
DARK RED
MEDIUM RED
ANCHOR OPTIONS
FOREST GREEN
MEDIUM GREEN
TAN
BRIGHT YELLOW
LIGHT YELLOW
DARK BLUE
MEDIUM BLUE
(REQUEST COLOR CHART)
RIBBED ABRASIVE NOSINGS
STANDARD CONTINUOUS EXTRUDED
TYPE XCL
56
1-1/8"
XCL-8B
XCL-9B
XCL-11B
XCL-6
XCL-7
XCL-8
XCL-10
8”
9”
11”
6”
7”
8”
10”
1/4”
1/4”
1/4”
MODEL NO. WIDTH THICKNESS

1/4”
1/4”
1/4”
1/4”
1/4"
TYPE XRS-3
BARRIER
FREE
DESIGN
STRAP ANCHORS
11
13
16
RIBS
10
12
14
17
MARTINSVILLE, IN
TYPE XSS-3
TYPE WIDTH DEPTH RIBS

XRS-2
XRS-3
XRS-4
2”
3”
4”
A B R A S I V E N O S I N G S F O R S T E E L PA N S TA I R S
a .074"
1/4”
1/4”
1/4”
TYPE
XRS-2-BF
XRS-3-BF
XRS-4-BF
1” wide, 12” O.C.±
E X T R U D E D A L U M I N U M S TA I R C O V E R S
1/4"
3
5
7
WIDTH DEPTH RIBS

2”
3”
4”
1/4”
1/4”
1/4”
pieces, entire platforms can be covered providing safe, renewed walking surfaces.
TYPE XCL-B
1-1/8"
XCL-7B 7” 1/4”
RIBS
9
1"
1/4"
XRF-1.3 1-3/8” 1/4”
XRF-3
TYPE XCS
1/2"
3
5
7
TYPE XCS-B
1/2"
3” 1/4”
.074"
BARRIER
FREE
DESIGN
2
5
LEAD TAMPIN
XCS-7B
XCS-8B
XCS-9B
XCS-11B
XCS-6
XCS-7
XCS-8
XCS-10
TEL (800) 634-1988

7”
8”
9”
11”
TYPE
XSS-2-BF
XSS-3-BF
XSS-4-BF
For existing concrete.
Designed for the renovation of existing stairs, IGI SuperTread Extruded Aluminum Staircovers
fit over worn stairs and walking surfaces. Covers are available in a variety of widths from 6 to 11
inches (widths exceeding 6” are provided in two pieces) and lengths up to 20’-0”. Installation is
easily accomplished with lead tampins or wood screws. Nosings are available as shown while the
back ends can be provided square or bevel cut. By using a combination of tongue-and-groove

6”
7”
8”
10”
S TAT E O F C A L I F O R N I A T I T L E 2 4 S A F E T Y 5/8"
TYPE CT-24-A
With
extruded
anchor for poured
stairs.
1/4"
1-1/8"
2-1/4"
SOLID ABRASIVE NOSINGS
WIDTH DEPTH
1/4”
1/4”
1/4”
1/4”
1/4”
1/4”
1/4”
1/4”
2”
3”
4”
3/8”
3/8”
3/8”
RIBS
9
11
13
17
2-1/4"

XRL-2
XRL-3
XRL-4
1-1/4"
2”
3”
4”
RIBS
9
11
13
16
1/4”
1/4”
1/4”
3
5
7
WOOD SCREWS
5/16"
5/8"
5/16"
STRIP
TYPE CT-24-H
1-1/4"
XTS-2
XTS-3
XTS-4
For existing wood stairs.
1/4"
1/4"
TYPE XCR
10O
FAX (765) 342-0382

TYPE
XSB-2
XSB-3
XSB-4
TYPE XCR-B
10 O
XSS-4
1-1/8"
1-1/8"
2-1/4"
2-1/4"
With holes for screws and

fasteners.
2-1/4" 1"
IGI SuperTread Nosings conform with the design requirements of OSHA’s

barrier-free code for stairs in public buildings.
2-1/4" 1"
1/4"
1/4"
TYPE
XSS-2
XSS-3
WIDTH DEPTH
TYPE WIDTH DEPTH RIBS TILE

2”
3”
4”
1/4”
1/4”
1/4”
WIDTH DEPTH
2”
3”
4”
2”
3”
4”
3/8”
3/8”
3/8”
XCR-8B
3
5
7
3/8”
3/8”
3/8”
1/8”
1/8”
1/8”
5/16"
5/16"
10
O
WING ANCHORS

8”

XCR-7 7”
1-1/4"
1-1/4"
XTL-2
XTL-3
XTL-4
1-1/8"
TYPE
XRR-3
1” wide, 12” O.C.±
1/4”
1/4”
2-1/4"
Meets all requirements

of California Title 24
safety strip for the
visually impaired.
TYPE
XSR-2
XSR-3
XSR-4
2-1/4"
2-1/4"
TYPE WIDTH DEPTH RIBS TILE

2”
3”
4”
1/4”
1/4”
1/4”
1"
WIDTH DEPTH
2”
3”
4”
WIDTH DEPTH RIBS

3” 1/4”
RIBS
11
RIBS
12
3
5
7
1/4"
3/8”
3/8”
3/8”
1/8”
1/8”
1/8”
1/4"
1/4"
5/16"
5/8"
5/16"
KEE KLAMP® FITTINGS
K ee Klamp fittings are strong, malleable cast-iron

slip-on pipe fittings that allow for the quick
assembly of a wide range of rigid pipe-framed structures.
type of structure as well as the usual
railings, storage racks, etc.
However, most structures
Handrails, racks, awnings, greenhouses, playground can be designed from just
equipment, light grid systems are just a few of the creative two or three types of Kee
structures possible. Klamp fittings.
Kee Klamp fittings are designed for use with standard Kee Klamp Railing
Schedule 40 or 80 pipes (sizes 1/2” to 2”). Case-hardened Fittings in sizes to suit 1-1/4”,
set screws, with KeeKoat finish securely lock the fittings to 1-1/2” and 2” I.D. pipe meet
the pipe. For longevity, Kee Klamps are galvanized making and in meet and in most
them ideal for indoor or outdoor use. cases exceed the OHSA
The many types of Kee Klamp fittings detailed on the requirement to withstand a
next two pages give unlimited scope to the engineer load of 200 lbs. applied to
designer, making possible the fabrication of the unusual the top rail.
Call for our complete 28 page
catalog of Kee Klamp Fittings
FEATURES: and our 24 page instruction
• QUICK ASSEMBLY OF STRUCTURAL PIPE WORK manual, “How to
• 100% REUSABLE Build with Kee
• NO WELDING OR THREADING REQUIRED Klamp Fittings.”
• NO DRILLING OR BOLTING REQUIRED
• CUT RAILING COSTS BY UP TO 50%
• MEETS OSHA STANDARDS
NO. 10 SINGLE SOCKET TEE NO. 17 CLAMP-ON CROSS OVER NO. 29 300 - 600 SINGLE SOCKET TEE
TYPE WGT. PIPE SIZE I.D. TYPE WGT. PIPE SIZE I.D. TYPE WGT. PIPE SIZE I.D.
LBS. (IN INCHES) LBS. (IN INCHES) LBS. (IN INCHES)
A B C D A B C D A B C D
10-6 .63 1” 1” 17-6 .44 1” 1” 29-6 .95 1” 1”
10-7 .99 1-1/4” 1-1/4” 17-7 .95 1-1/4” 1-1/4” 29-7 1.59 1-1/4” 1-1/4”
10-8 1.36 1-1/2” 1-1-2” 17-8 1.19 1-1/2” 1-1-2” 29-8 1.76 1-1/2” 1-1-2”
NO. A10 SPLIT TEE N O . 1 9 A D J U S TA B L E S I D E O U T L E T T E E N O . 3 0 3 0 0 - 4 5 0 A D J U S TA B L E C R O S S

A10-7 1.25 1-1/4” 1-1/4” 19-6 1.25 1” 1” 1” 30-6 1.76 1” 1” 1”
A10-8 1.58 1-1/2” 1-1-2” 19-7 1.81 1-1/4” 1-1/4” 1-1/4” 30-7 2.21 1-1/4” 1-1/4” 1-1/4”
19-8 2.60 1-1/2” 1-1-2” 1-1/2” 30-8 2.76 1-1/2” 1-1-2” 1-1/2”
NO. 12 450 SINGLE SOCKET TEE NO. 20 SIDE OUTLET ELBOW NO. 35 SIDE OUTLET TEE
12-6 .95 1” 1” 20-6 1.10 1” 1” 1” 35-6 1.01 1” 1” 1” 1”
12-7 1.21 1-1/4” 1-1/4” 20-7 1.87 1-1/4” 1-1/4” 1-1/4” 35-7 1.70 1-1/4” 1-1/4” 1-1/4” 1-1/4”
12-8 1.70 1-1/2” 1-1-2” 20-8 1.98 1-1/2” 1-1-2” 1-1/2” 35-8 2.27 1-1/2” 1-1-2” 1-1/2” 1-1/4”
SINGLE SOCKET TEE FOR 30 0 - 60 0 SEE TYPE 29
NO. 14 STRAIGHT COUPLING NO. 21 900 SIDE OULET TEE NO. 40 FOUR SOCKET CROSS
14-6 .82 1” 21-6 .82 1” 1” 40-6 1.23 1” 1” 1” 1”
14-7 1.21 1-1/4” 21-7 1.21 1-1/4” 1-1/4” 40-7 2.05 1-1/4” 1-1/4” 1-1/4” 1-1/4”
14-8 1.41 1-1/2” 21-8 1.54 1-1/2” 1-1-2” 40-8 2.69 1-1/2” 1-1-2” 1-1/2” 1-1/4”
NO. 15 900 ELBOW NO. 25 900 THREE SOCKET TEE NO. 45 CROSSOVER
15-6 .82 1” 1” 25-6 .99 1” 1” 1” 45-6 .68 1” 1”
15-7 1.48 1-1/4” 1-1/4” 25-7 1.98 1-1/4” 1-1/4” 1-1/4” 45-7 1.05 1-1/4” 1-1/4”
15-8 1.92 1-1/2” 1-1-2” 25-8 2.32 1-1/2” 1-1-2” 1-1/2” 45-8 1.32 1-1/2” 1-1-2”
NO. 16 CLAMP-ON TEE NO. 26 TWO SOCKET CROSS NO. A45 SPLIT CROSSOVER
16-6 .82 1” 1” 26-6 .88 1” 1” 1” A45-7 1.43 1-1/4” 1-1/4”
16-7 1.10 1-1/4” 1-1/4” 26-7 1.43 1-1/4” 1-1/4” 1-1/4” A45-8 1.73 1-1/2” 1-1-2”
16-8 1.72 1-1/2” 1-1-2” 26-8 1.87 1-1/2” 1-1-2” 1-1/2”
57
KEE KLAMP® FITTINGS
NO. 46 COMBINATION SOCKET TEE & CROSSOVER NO. 64 RAILING STANDARD SUPPORT VERTICAL BASE NO. 84 PLUG (DRIVE-IN) MALLEABLE
A B C RIVET A ATTACHING RIVET A B C D
HOLE HOLE DIA. HOLE
DIA. DIA. 84-6 .35 1”
84-7 .40 1-1/4”
46-6 1.06 1” 1” 1” 64-6 1.83 1” 9/16”
84-8 .46 1-1/2”
46-7 1.46 1-1/4” 1-1/4” 1-1/4” 64-7 2.27 1-1/4” 9/16”
46-8 1.76 1-1/2” 1-1-2” 1-1-2” 64-8 3.20 1-1/2” 9/16”
NO. C50 SINGLE SWIVEL SOCKET NO. 66 GROUND SOCKET NO. 114 SWIVEL TEE
A B C RIVET A ATTACHING RIVET A B C D
HOLE HOLE DIA. HOLE
DIA. DIA. 114-6 .63 1”
114-7 1.10 1-1/4”
C50-66 1.35 1” 1” 3/8” 66-6 4.41 1”
114-8 1.25 1-1/2”
C50-77 1.61 1-1/4” 1-1/4” 3/8” 66-7 5.07 1-1/4”
C50-88 2.00 1-1/2” 1-1-2” 3/8” 66-8 5.51 1-1/2”
NO. C51 DOUBLE SWIVEL SOCKET NO. 68 WALL FLANGE THE VERSATILE KEE KLAMP
TYPE WGT. PIPE SIZE I.D. TYPE WGT. PIPE SIZE I.D.
LBS. (IN INCHES) LBS. (IN INCHES) TYPES 17, 19, 29, 30, C-58, 66, 114
A B C RIVET A B THICKNESS OF
HOLE
DIA.
PLATE NO. 17
C51-666 2.38 1” 1” 1” 3/8” 68-6 1.25 1” 7/16” .25 This fitting provides a
C51-777 2.84 1-1/4” 1-1/4” 1-1/4” 3/8” 68-7 1.56 1-1/4” 7/16” .25 very simple method of
C51-888 3.50 1-1/2” 1-1-2” 1-1-2” 3/8” 68-8 2.05 1-1/2” 7/16” .25
adding to existing pipe
structure or building
NO. C52 CORNER SWIVEL SOCKET NO. 70 RAIL SUPPORT new economical
structures.
LBS. (IN INCHES) LBS. (IN INCHES)
A B C RIVET A ATTACHING RIVET
HOLE HOLE DIA. HOLE NO. 19
DIA. DIA.
Adjustable side outlet
C52-666 2.34 1” 1” 1” 3/8” 70-6 .86 1” 5/16”
C52-777 2.84 1-1/4” 1-1/4” 1-1/4” 3/8” 70-7 1.10 1-1/4” 5/16” tee for railings,
C52-888 3.52 1-1/2” 1-1-2” 1-1-2” 3/8” 70-8 1.61 1-1/2” 5/16” greenhouses, awning
frames, etc.
NO. BC53 SWIVEL ELBOW NO. 75 COLLAR

A B C RIVET A ATTACHING RIVET NO. 29
HOLE HOLE DIA. HOLE
DIA. DIA. Single Socket Tee
BC53-8 2.42 1-1/2” 1-1-2” 75-6 .31 1” features adjustability
75-7 .35 1-1/4” from 300 to 600, ideal for
75-8 .44 1-1/2” stairawy railings,
bracing between
posts, etc.
NO. C58 SWIVEL FLANGE NO. 76 HOOK
A RIVET A B C D
NO. 30
ATTACHING HOLE
HOLE DIA. DIA. 76-6 .44 1” 300 to 450 cross for
76-7 .55 1-1/4” the intermediate rail
C58-6 1.72 1” 7/16” 3/8”
C58-7
76-8 .66 1-1/2” for stairways.
1.92 1-1/4” 7/16” 3/8”
C58-8 2.00 1-1/2” 7/16” 3/8”
NO. 61 FLANGE NO. 77 PLUG (DRIVE-IN FIT) PLASTIC

LBS. (IN INCHES) LBS. (IN INCHES) NO. C-58
A RIVET A B C D
ATTACHING Swivel Flange for floor,
HOLE
HOLE DIA. 77-6 1”
DIA. wall, ceiling, sloping
77-7 1-1/4” roofs, etc. Also
61-6 .86 1” 1/4” 77-8 1-1/2”
61-7 1.01 1-1/4” 1/4” for bracing.
61-8 1.79 1-1/2” 1/4”
NO. 61 FLANGE SQUARE BASE NO. 78 EYE FITTING

NO. 66
A ATTACHING RIVET A B C DIA. OF Ground Sockets for
HOLE PIN setting in concrete; the
HOLE DIA. HOLE
DIA.
posts amy be either
61-6S .96 1” 11/32” 78-6 .51 1” 9/16”
permanent, or
61-7S 1.40 1-1/4” 1/4” 78-7 .55 1-1/4” 9/16”
61-8S 1.79 1-1/2” 1/4” 78-8 .62 1-1/2” 9/16” removable if required.
N O . 6 2 R A I L I N G S TA N D A R D F L A N G E NO. 83 PIN FITTING

TYPE WGT. PIPE SIZE I.D. TYPE WGT. PIPE SIZE I.D. NO. 114
3600 Swivel Tee for stair
A RIVET A B C DIA. OF
ATTACHING
HOLE PIN railings. Internal swivel
HOLE DIA.
DIA. HOLE connector eliminates
62-6 1.79 1” 9/16” 83-6 .62 1” 1/2” need for specially drilled
62-7 2.16 1-1/4” 9/16” 83-7 .71 1-1/4” 1/2” angle fittings.
62-8 3.02 1-1/2” 9/16” 83-8 .79 1-1/2” 1/2”

R&B WAGNER HANDRAIL COMPONENTS
I ndiana Gratings is your local stocking distributor for R & B Wagner Handrail
Fittings. Wagner components have assisted fabricators in producing quality,
economical railing systems for over 50 years. If your next job requires pipe or
tube rail; round, square or rectangular shapes; there are economical Wagner
fittings that will save you time and money.
The following pages illustrate some of our most popular fitting and connectors.
Many of these items are IN STOCK AT Indiana Gratings and ready for
immediate shipment. Contact your local Indiana Gratings office to place
your order.
C O N TA C T I N D I A N A G R AT I N G S T O R E Q U E S T T H E
C O M P L E T E 1 0 8 PA G E W A G N E R C ATA L O G !
1/4" FORMED BRACKET STYLE C BRACKET 3/16" FORMED

For use on flat walls, pipe and round tube posts, square and rectangular tube posts and
Available in steel, aluminum, stainless steel (3/16" thick) and bronze with one, two or
in areas with limited mounting space. Universal saddle can be used with round or flat
three hole mounting options. Snap-on covers are used with these brackets to cover the
c
handrail sections. Also available in Stainless Steel and Bronze.
13/4"
mounting hardware. Anodized and satin finishes available upon request.
c 3" 1"
1/4" Holes
1/4" Holes
21/2"
Use Style H Adapter to

Mount to Round Posts.
Available in
7/16" Clear Hole 13/4" Also Available with Two 1/4" Holes. Use with
Style H adapter for pipe post mounting.
bronze.
With One 7/16" Hole 3" c

Steel with
One 7/16" Hole
Round Saddle: 2 1/2" 3474
Satin 3" 3482
c Steel Aluminum Stainless
2 1/4" 1930R-24 1931R-24 1951R-24
2 1/2" 1930R 1931R 1951R
3" 1938R 1939R 1959R SNAP-ON COVER
For concealed mounting of single hole 1/4" formed brackets shown at left. Two and three
Flat Saddle:
Satin hole brackets must be countersunk to use these covers. Cover only; bracket not included.
c Steel Aluminum Stainless
2 1/2" 1930F 1931F 1951F
3" 1938F 1939F 1959F
STYLE B BRACKET 3/16" FORMED

A Wagner Original - Steel, 1006-1010. Available in Stainless Steel, 304 or 316, and
Muntz, C28000. Tested to a 300 lb. concentrated load. Universal saddle for use with round
3 1 /4"
c
or flat handrail sections.
1"
Satin
Steel Aluminum Stainless
1960 1961 1962
1/4" Holes
25/8"
FORMED EXTRUDED STYLE BRACKET

Steel, 1/4" thickness; Stainless Steel, 3/16" thickness
c 13/4"
7/16" Clear Hole
23/4"
1/4" Holes
Steel with Steel with Steel with
c One 7/16" Hole Two 1/4" Holes Three 1/4" Holes
2 1/2" 3419*
2 1/2" 3418 3434 3458
7/16" Clear Hole

3" 3426 3442 3466
* This bracket uses a new forming die to adjust the vertical clearance from the underside of the handrail to the
horizontal arm to meet the 1 1/2" now required by many building codes. Round Saddle:
Satin
Note: Many of our stamped brackets utilize the same blanking dies. Different forming dies are applied to vary c Steel Stainless
the distance to center line (c) dimension. The images shown here are for reference only. 2 1/2" 1970R 1990R
3" 1978R 1998R
59
EXTRUDED HANDRAIL BRACKETS C A S T B R A C K E T S C O N T. . .

2"
Universal saddle fits 1.50" thru 3.00" OD and flat surfaces.
c
11/4"
c 13/8"
11/16" 21/8"
Holes for
17/8"
#10 FHMS r = 3/4"

213/16"
C'sunk for
1/4" Screw
21/4"
7/16" Clear Hole 23/4" Diam.
35/8"
Square Base
Anodized Satin Mirror 3/8"
c Aluminum Aluminum Stainless Stainless Clear Hole for
2 1/2" ER8101 ER8101A ER9001 ER9005 3/8" Mounting Bolt
3" ER8001 ER8001A ER9002 ER9006
2"
Cast Bracket Round Saddle With One 7/16" Hole
c
11/4"
Round Base Malleable Satin Satin Anodized Satin Satin
Anodized c a Iron Aluminum Aluminum Stainless Bronze
c Aluminum Aluminum 2 1/2" 1 1/4" 1765 1767 1767AN 1768 1769
2 1/2" ER8102 ER8102A 3" 1 1/2" 1770 1772 1772AN 1773 1774
Holes for
3" ER8002 ER8002A
17/8"
#10 FHMS
213/16"
c 13/8"
Aluminum - 6063
Anodized Aluminum - AA-M10-C22- A41
7/16" Clear Hole
Stainless Steel - Type 304 11/16" 21/8"
C'sunk for
1/4" Screw
a
UNIVERSAL WELD BRACKET
21/4"
Many local code authorities now require a clearance of 1 1/2" between the underside of
23/4" Diam.
35/8"
a handrail and the bracket arm. This stamped bracket will meet this requirement. It is for Numbers in Italics
welded applications and will work with any flat or round railing section. denote items that may
not be available for
3/8"
Clear Hole for

immediate shipment.
Numbers in Italics
3/8" Mounting Bolt
1" 21/4"
denote items that
may not be available
for immediate shipment. Cast Bracket Flat Saddle With One 7/16" Hole
Malleable Satin Satin Anodized Satin Satin
11/2"
c a Iron Aluminum Aluminum Stainless Bronze

2 1/2" 1 3/8" 1785 1787 1787AN 1788 1789
313/32"
3" 1 1/2" 1790 1792 1792AN 1793 1794
7/16" clear hole COPED DRIVE-ON CONNECTORS

2" 1/4"
Unique drive-on and weld design eliminates pipe coping and saves time spent on
cutting and alignment.
Steel Aluminum
Satin
Stainless Brass Bronze
90º TEE CONNECTOR – TYPE A Mill Finish
1980ST 1980AL 1980SS 1980BR 1980BZ Sch. 40 Sch. 40
Pipe Size Tube OD Steel Aluminum
1 1/4" 1.660" 1822 1823
CAST BRACKETS 1 1/2" 1.900" 1834 1835
Material Specifications:
Malleable Iron 535.2, ASTM A 47 FLUSH WELDING TEES, ELBOWS AND CROSSES
Aluminum Alloy B535.2, ASTM B 26 Wall thickness is compatible with schedule 40 pipe. May be used with wedge-lock
Clear anodized AA-M32-C22-A41 connectors shown here. Supplied in mill finish. Other finishes are available upon request.
Stainless Steel Type 304, ASTM A 351
Bronze C86500 90º ELBOW
Finish: Cast aluminum, stainless and bronze brackets have a #4 satin finish. Mirror finish,
chrome plating and galvanizing are available on special order.
Cast aluminum brackets are inherently weaker than other alloys. Reduce spacing between
3/4"
brackets to maximize load bearing ability.
2"
c
1" 13/8"
1/8" Inside Radius
Tube Steel Aluminum Stainless
3/8"
Pipe Size OD 1006-1010 3003 Type 304
Countersunk 1 1/4" 1.660" 801 806 810
for 1/4" Screws 1 1/2" 1.900" 820 824 828
21/4"
23/4"
SIDE OUTLET ELBOW

33/4"
3/8"-16
Tapped Hole
3/4"
Style U Cast Bracket With One 3/8" Tapped Hole a
Malleable Satin Satin Anodized Satin Satin
c Iron Aluminum Aluminum Stainless Bronze Tube
2 1/2" 1701-2 1715-2 1715-2AN 1729-2 1740-2 Pipe Size OD a Steel Aluminum Stainless
3" 1701 1715 1715AN 1729 1740 1 1/4" 1.660" 1 9/16" 840 842 844
1 1/2" 1.900" 1 11/16" 841 843 845

W E D G E - L O C K TM W E L D I N G C O N N E C T O R S D O U B L E - L O C K S P L I C E L O C K TM Patented
Wagner’s original, patented connector simplifies alignment prior to welding. Proven the best mechanical splice available for a
Wedge-LocksTM will take more than 100 pounds of tension. pipe and tubular railing field joints.
Numbers in Italics denote items that may not be available for
FOR PIPE AND ROUND TUBING immediate shipment.
DOUBLE SPLICE-LOCKTM FOR PIPE AND ROUND TUBING
Tube Wall Zinc Plated Galvanized Set
Pipe Size Schedule Diameter Thickness a Steel Steel Steel Screw
1.500" .065" 3 3/4" 3366 G3366 3/8" ˘ 1"
1.500" .065" 6" 3366-6 G3366-6 3/8" ˘ 1"
1 1/4" 40 1.660" .140" 3 3/4" 3354 PL3354 G3354 3/8" ˘ 1"
1 1/4" 40 1.660" .140" 6" 3356 PL3356 G3356 3/8" ˘ 1"
1 1/2" 40 1.900" .145" 3 3/4" 3358 PL3358 G3358 3/8" ˘ 1 3/8"
1 1/2" 40 1.900" .145" 6" 3368 PL3368 G3368 3/8" ˘ 1 3/8"
Tube Wall
Pipe Size Schedule OD Thickness Steel Aluminum Stainless
1" 40 1.320" .133" 1013 1014 1015
1.500" .065" 1023T* 1024T* 1025T* INSIDE RADIUS ELBOWS
1.500" .125" 1023T.11* 1024T.11* 1025T.11* Please read descriptions carefully. These elbows are precision mandrel bent parts – without
1 1/4" 10 1.660" .109" 1023-L seams – or stamped – with seams – as noted.
1 1/4" 40 1.660" .140" 1023 1024 1025 Elbows are supplied with a mill finish. They are also available galvanized, zinc plated,
1 1/2" 10 1.900" .109" 1033-L anodized or polished to a satin or mirror finish. All elbows may also be purchased with
1 1/2" 40 1.900" .145" 1033 1034 1035
tangents. Contact Indiana Gratings with your requirements.
2.000" .120" 1033T 1034T 1035T
2" 10 2.380" .109" 1043-L 1" INSIDE RADIUS 90º ELBOW – with seam
2" 40 2.380" .154" 1043 1044 1045 Wall
2.500" .120" 1043T 1044T 1045T Pipe Size Schedule OD Thickness Steel Aluminum
R
1" 40 1.315" .133" 218 242
r
* This connector is only available without the wedge 1 1/4" 40 1.660" .140" 266 290
1 1/2" 40 1.900" .145" 338 362
INSERT COUPLING
1" INSIDE RADIUS 90º ELBOW WITH TWO 2" TANGENTS – without seam
Tube 14 Gallon
Pipe Size OD a Steel Wall
Pipe Size Schedule OD Thickness Steel Aluminum
1 1/4" 1.66" 5" 1220
a 1" 40 1.315" .133" 218-2 242-2
R
1 1/2" 1.90" 5" 1222
1 1/4" 40 1.660" .140" 266-2 290-2
r
1 1/2" 40 1.900" .145" 338-2 362-2
MISCELLANEOUS RADIUS PIPE AND OD TUBE ELBOWS

These handrail bends are mandrel bent and have no visible seam unless noted.
Elbows are supplied with a mill finish. Other finishes available.
* Denotes an elbow with a seam. These elbows are ADA compliant and provide 1 1/2" clearance. 1 5/8" INSIDE RADIUS 90º ELBOW – without seam unless noted
90º ELBOW Tube Wall
Tube Wall Pipe Size OD Thickness Steel Aluminum Stainless
Pipe Size OD Thickness r R Steel Aluminum Stainless 1" 1.315" .133" 4507 4521 4535
R
1.500" .120" 1.50" 2.25" 7914* 7930* 7946*
R
1.500" .120" 6906 6922 6938
r
2.500" .120" 3.75" 5.00" 9610 9613
r
1 1/4" 1.660" .140" 4434* 4444 4654
2 1/2" 2.880" .203" 3.56" 5.00" 9600 9603 1 1/2" 1.900" .145" 4464* 4474 4684
3.000" .120" 3.50" 5.00" 9620 9623 * Denotes an elbow
with a seam.
SQUARE TUBE CORNER

No Miter — No Sharp Corners INSIDE RADIUS ELBOWS CONT . . .
This cost-cutting corner simplifies fit-up and
shortens fabrication. Simply square cut your tubing. 1 5/8" INSIDE RADIUS 180º ELBOW WITH TWO TANGENTS UNTRIMMED – without seam
Tube Wall
Radius equals the tube size. Not recommended Pipe Size OD Thickness Steel Aluminum Stainless
R
for square corner extruded tube. 1 1/4" 1.660" .140" 4639B 4649B 4661B
r
Alloy 304 1 1/2" 1.900" . 145" 4669B 4679B 4691B
Square Tube Steel Stainless
1.25" 9215 9217
1.50" 9220 9222
C-C
S I N G L E - L O C K S P L I C E - L O C K TM Patented 2" INSIDE RADIUS 90º ELBOW – without seam unless noted
Available in steel, aluminum alloy 3003 and stainless steel type 304. Splice-locks are Tube Wall
designed for the alignment of handrail sections and as expansion joints. They are most Pipe Size OD Thickness Steel Aluminum Stainless
effective as a joint stiffener when used within 12" of a Use as Connectors or Expansion Joints 1" 1.315" .133" 214* 228 271-S
R
welded post or handrail bracket. For maximum a 1.500" . 065" 7906 7938
r
strength, use double-lock splice-locks shown above 1.500" . 120" 7906.120 7922 7938.120
(top right of this page). 1 1/4" 1.660" . 140" 268 292 317
* Denotes an elbow 1 1/2" 1.900" .145" 340* 364 389
Splice-locks have a similar shear strength as
with a seam. 2.000" .120" 7956 7972 7988
standard pipe but are not to be used in post assemblies. † Denotes Sch. 10 2" 2.375" .134" 402* 418* 433*†
SINGLE SPLICE-LOCKTM FOR PIPE AND ROUND TUBING
Tube Wall Zinc Plated Galvanized Set 3" INSIDE RADIUS 90º ELBOW – without seam unless noted
Pipe Size Schedule Diameter Thickness a Steel Steel Steel Screw Tube Wall
1 1/4" 40 1.660" .140" 3 3/4" 3314 PL3314 G3314 3/8" ˘ 1" Pipe Size OD Thickness Steel Aluminum Stainless
1 1/4" 40 1.660" .140" 6" 3320 PL3320 G3320 3/8" ˘ 1" 1" 1.315" .133" 507 517 527
R
3318 PL3318 G3318 1.500" . 120" 6956 6967 6975
r
1 1/2" 40 1.900" .145" 3 3/4" 3/8" ˘ 1 3/8"
1 1/2" 40 1.900" .145" 6" 3324 PL3324 G3324 3/8" ˘ 1 3/8" 1 1/4" 1.660" . 140" 270* 294 464
1 1/2" 1.900" .145" 342* 366 391
* Denotes an elbow
2" 2.375" .154" 421 444 456-3*†
with a seam.
† Denotes Sch. 10
61
F L AT B A S E F L A N G E S HEAVY FLUSH BASE PLAIN FLANGE

Aluminum flanges on this page are intended for cover flange use only. Set screws are not
for structural use. Heavy Flush Base Flanges are available with two, three and four holes.
Other alloys are available on special request. Supplied with a mill finish. Contact Indiana Contact Indiana Gratings for part numbers and availability.
Gratings regarding polishing, plating, galvanizing, anodizing or special finishes. Set screws are not for structural use.
Numbers in Italics denote items that may not be available for immediate shipment.
Pipe Tube Steel Aluminum Stainless Bronze
PLAIN FLANGE Size OD 1008 3003 Type 304 C2800
Tube Steel Aluminum
Pipe Size OD 1006-1010 3003 1 1/4" 1.660" 2526 2566 2606 BZ2526
3/4" 1.050" 610 650 1 1/2" 1.900" 2534 2574 2614 BZ2534
1" 1.315" 618 666
1 1/4" 1.660" 626 674
T Y P E D F L AT W E L D - O N D I S K S
FLANGE WITH TWO HOLES Weld
Tube Steel Aluminum
Pipe Size OD 1006-1010 3003
3/4" 1.050" 611 651
1" 1.315" 619 659
1 1/4" 1.660" 627 667
FLANGE WITH THREE HOLES

Tube Steel Aluminum a
Pipe Size OD 1006-1010 3003
3/4" 1.050" 611A 651A Pipe Tube
1" 1.315" 619A 659A Size OD a Steel Aluminum Stainless
1 1/4" 1.660" 627A 667A 1.000" 1/8" D001 D002 D003
1.250" 1/8" D015 D016 D017
FLANGE WITH FOUR HOLES
1" 1.315" 3/16" 3227 3247 3267
Tube Steel Aluminum
Pipe Size OD 1006-1010 3003 1.500" 1/8" D045 D046 D047
3/4" 1.050" 612 652 1 1/4" 1.660" 3/16" 3228 3248 3268
1" 1.315" 620 660 1.750" 1/8" D069-1 D069-2 D069-3
1 1/4" 1.660" 628 668 1 1/2" 1.900" 3/16" 3229 3249 3269
2.000" 1/8" D090 D091 D092
2" 2.375" 3/16" 3230 3250 3270
FLUSH SQUARE TUBING WELD-ON CAPS 2.500" 1/8" D120 D121 D122
3.000" 1/8" D135 D136 D137
Contact Indiana Gratings regarding
3" 3.500" 3/16" 3230-3 3250-3 D171
availability in Stainless Steel and
Aluminum. Flush square tubing
drive-on caps are also available.
TYPE C WELD-ON END CAPS 10 Ga. Thickness
Tube Size Thickness Steel Can be used with optional Wedge-Lock connector shown on page 67. Weld and grind smooth.
1" ˘ 1" 1/8" 3206-1 1/8"
1 1/4" ˘ 1 1/4" 1/8" 3207-1

1 1/2" ˘ 1 1/2" 1/8" 3220-D
2" ˘ 2" 1/8" 3221-D
ROUND DISKS
Disks are available in many other diameters, thicknesses and a
alloys contact Indiana Gratings with your inquires.
Pipe Tube
304 Size OD a Steel Aluminum Stainless
Diameter Thickness Steel Aluminum Stainless
.750" 3/4" 3233-2 3234-2 3263-2
3" 1/8" D135 D136 D137
1.000" 9/16" 3233-1 3234-1 3263-1
3" 3/16" D139 D140 D141
3/4" 1.050" 5/8" 3223 3243 3257
3" 1/4" D143 D144 D145
1.250" 1 1/16" 3233 3234 3263
1" 1.315" 1" 3218 3238 3258
WALL RETURNS 1.500" 1 1/8" 3222 3242 3262
Wall returns for 1.500" tubing are designed to meet the 1992 ADA guidelines requiring a 1 1/4" 1.660" 1 1/8" 3219 3239 3259
1 1/2" clearance between the wall and handrail. Newer ICC, NFPA. ANSI and the 2003 ADA 1.750" 15/16" 3222-2 3242-2 3262-2
1 1/2" 1.900" 1 1/8"" 3220 3240 3260
Accessibility Guidelines now note this as a minimum clearance. Confirm your local
2.000" 1 1/4" 3226 3246 3266
requirements before specifying any Indiana Gratings product.
d d d
2" 2.375" 1 3/8" 3221 3241 3261
2.500" 1 5/16" 3226-2 3246-2 3266-2
2 1/2" 2.875" 1 1/4" 3224 3244 3264
b
3.000" 1 7/16" 3226-4 3236-4 3266-4

b
b
c
3" 3.500" 1 1/4" 3225 3245 3265

3 1/2" 4.000" 1 5/16" 3225-2 3245-2 3265-2
4" 4.500" 1 5/8" 3225-4 3245-4 3265-4
TYPE A DRIVE-ON END CAPS 10 Ga. Thickness

FOR PIPE
a a a
Deburr inside of pipe
to give chamfered
caps an easy start.
Wall Returns are available with two and three holes. Contact Indiana Gratings for part numbers and
a
availability. Set screws are not for structural use.
WALL RETURN WITH ONE 3/8" HOLE

Tube Steel
Pipe Wall Pipe Size OD a Sch. 40 LOL
Size Tube OD Thickness a b c d Steel
3/4" 1.050" 5/8" 3208M* * Machined
1.500" .120" 3.81" 1.50" 2.25" 3.50" 1150-1
1 1/4" 1.660" 1 1/8" 3211
1 1/4" 1.660" .140" 3.88" 1.67" 2.50" 3.50" 1100-1
1 1/2" 1.900" 1 1/8" 3212
1 1/4" 1.660" .140" 4.44" 2.17" 3.00" 3.50" 1103-1
1 1/2" 1.900" .145" 3.75" 1.55" 2.50" 3.50" 1130-1
1 1/2" 1.900" .145" 4.44" 2.05" 3.00" 3.50" 1133-1

T Y P E E F L AT D R I V E - O N D I S K S Four Prong Style SOLID BALLS

Round solid balls without holes can be easily drilled and welded.
Contact Indiana
Gratings regarding
availability in brass.
FOR SCHEDULE
40 PIPE SIZE ONLY
Pipe
Size
Tube
OD
Wall
Thickness a Steel Stainless
/2"
1
5
/8"
1 1/4" 1.660" .140" 3/16" 3286 3286-SS
3
/4"
1 1/2" 1.900" .145" 3/16" 3287 3287-SS
1"
Steel Aluminum Stainless Yellow Brass Silicon Bronze
TYPE F DISHED WELD-ON CAPS 7 Ga. Thickness Size 1010HR Alloy 2011 Type 316 Alloy C26000 Alloy C65500
1/2" SDB105 SDB205 SDB305 SDB405
5/8" SDB106 SDB306 SDB406
Contact Indiana
Gratings regarding 3/4" SDB108 SDB308 SDB408
availability in brass. 1" SDB110 SDB210 SDB310 SDB410 SB4100
Pipe Tube
Size OD a Steel Aluminum Stainless
1.500" 1/2" D045D D046D D047D
POST CAPS
1 1/4" 1.660" 1/2" 3228-F 3248-F 3268-F Pressed, except as noted. Pressed caps
1 1/2" 1.900" 1/2" 3229-F 3249-F 3269-F have radius corners. When used with
aluminum architectural tubing, you will
need to relieve corners to drive on cap.
T Y P E H O VA L T O P D R I V E - O N CA P S 16 Ga. Thickness
Tube Size Steel Aluminum Stainless
3/4" ˘ 3/4" 5174 5175 5176
1" ˘ 1" 5150 5152 5154
1 1/4" ˘ 1 1/4" 5162 5163 5164
1 1/2" ˘ 1 1/2" 5156 5158 5160
2" ˘ 2" 5100 5101 5103
a
2 1/2" ˘ 2 1/2" 5104 5105 5111
3" ˘ 3" 5106 5107 5109
Pipe Tube Wall Satin 3 1/2" ˘ 3 1/2" 5112 5113 5115
Size OD Thickness a Steel Stainless 4" ˘ 4" 5120 5121 5123
1.500" .083" 1/2" 3222D-14 6" ˘ 6" 5149 5149A
1 1/4" 1.660" .109" 1/2" 3211-LH
1 1/4" 1.660" .140" 1/2" 3211-H 3211-SS
1 1/2" 1.900" .109" 1/2" 3212-LH
1 1/2" 1.900" .145" 1/2" 3212-H 3212-SS
2.000" .120" 1/2" 3226D 3266D RINGS
For use in railings, fencing and any
ornamental fabrication that you desire.
Available in steel, aluminum and stainless
O R N A M E N TA L steel. Contact Indiana Gratings for
BALLS AND availability of brass or bronze rings and
HEMISPHERES special finishes.
These hollow metal balls 1/2" Diameter Solid Round Bar
and hemispheres have a
wide range of applications
Outside Diameter Steel 1018 Aluminum 6061 Stainless Type 304
for the designer and
2 1/2" 4350 4351 4352
fabricator. They have an
3" 4355 4356 4357
ample wall thickness for 3 1/2" 4360 4361 4362
welding, screwing or 4" 4365 4366 4367
tapping. Steel balls are 11 5" 4370 4371 4372
gauge and 6" 4375 4376 4377
aluminum, stainless and brass balls have a 1/8" wall thickness. Standard finish is mill
with the weld seam ground flush.
Custom sizes and finishes are available. Contact Indiana Gratings for availability and pricing.
HOLLOW BALLS
Steel Aluminum Stainless Yellow Brass Silicon Bronze
Size 1010HR Alloy 3003 Type 304 Alloy C26000 Alloy C65500 SQUARE BAR RINGS Seamless
2" 4110 4112 4114 4116 SB4110 1/2" Solid Square Bar Not Cast
3" 4130 4132 4134 4136 SB4130
4" 4150 4152 4154 4156 SB4150
8" 4180 4182 4184 4186 SB4180
12" 4190 4192 4194 4196 SB4190
Outside Diameter Steel Aluminum
2 1/2" 4380 4381
HEMISPHERES
Steel Aluminum Stainless Yellow Brass Silicon Bronze 3" 4382 4383
Size 1010HR Alloy 3003 Type 304 Alloy C26000 Alloy C65500 3 1/2" 4384 4385
1" B4100 B4101 B4102 B4103 BSB4100 4" 4386 4387
1 1/2" B4105 B4106 B4107 B4108 BSB4105 5" 4388 4389
12" B4190* B4192* B4194* B4196* BSB4190* 6" 4390 4391
*12" diameter hemispheres have a 5/16" hole.
63

Indiana Gratings Catalog 2013

Uploaded by

Copyright:

Available Formats

Indiana Gratings Catalog 2013

Uploaded by

Document Information

Copyright

Available Formats

Share this document

Share or Embed Document

Sharing Options

Did you find this document useful?

Is this content inappropriate?

Copyright:

Available Formats

Indiana Gratings Catalog 2013

Uploaded by

Copyright:

Available Formats

What products does the company offer?

What products does the company offer?

What services does the company provide?

What services does the company provide?

ounded in 1971, Indiana Gratings has grown to become the premier

F fabricating distributor of industrial flooring products in the Western United States.

THE NAMES YOU KNOW C U S T O M F A B R I C AT I O N

PROUDLY SERVING INDUSTRY SINCE 1976

© 2012 Indiana Gratings

M etal bar grating can be defined as a series

members to form a rectangular or reticuline products are commonly manufactured with

WIDTH O.C. CROSS BAR

P roper specification of bar gratings includes a

4 MARTINSVILLE, IN TEL (800) 634-1988 FAX (765) 342-0382

STEEL BAR GRATING LOAD TABLE

EXAMPLES: 19SG4 FOR RECTANGULAR BAR GRATINGS

Bearing Bars at 1-3/16" O.C. Bearing Bars at 11/16" O.C.

TYPE 15-4 TYPE 7-4

Bearing Bars at 15/16" O.C. Bearing Bars at 7/16" O.C.

ALUMINUM GRATING LOAD TABLE

6 MARTINSVILLE, IN TEL (800) 634-1988 FAX (765) 342-0382

Bearing Bars at 1-3/16" O.C.

TYPE 19-2 2" 2"

Pressure Locked Gratings manufactured by swaging are designated by the

Bearing Bars at 11/16" O.C.

TYPE 11-2 2"

Bearing Bars at 1-3/16" O.C. Bearing Bars at 11/16" O.C.

FINISHING TYPE 15-2

STAINLESS STEEL GRATING Bearing Bars at 15/16" O.C.

8 MARTINSVILLE, IN TEL (800) 634-1988 FAX (765) 342-0382

RIVETED GRATING LOAD TABLE

Groved Nosing Slip-Not® Nosing Abrasive Nosing is

Maximum Tread Length2 (in.)

10 MARTINSVILLE, IN TEL (800) 634-1988 FAX (765) 342-0382

Maximum Tread Length2 (in.)

1-3/4" 2-1/4" 3" 7 8-9/16" 9-5/16" 4-1/2"

1-1/2 x 1/8 56 65 66 66 49 58 63 66 2-1/2" 3-1/4" 3" 10 12-1/8" 13-1/4" 7"

2 x 1/4 89 99 82 91 11 8" "A" Dimension 1

2-1/4 x 1/4 106 118 97 108 *STEEL TREADS *ALUMINUM TREADS

2-1/2 x 1/4 123 137 114 127

A luminum Plank Grating produced in 6" wide

Diagonal (ADA) Punched * number indicates % open area

AlPlank 8* AlPlank 15* AlPlank 22*

12 MARTINSVILLE, IN TEL (800) 634-1988 FAX (765) 342-0382

22W4 4" 22W2 2" 2"

Optional: 30W4 4" 30W2 2" 2"

14 MARTINSVILLE, IN TEL (800) 634-1988 FAX (765) 342-0382

B ridge Decking is manufactured by cold-press riveting

16 MARTINSVILLE, IN TEL (800) 634-1988 FAX (765) 342-0382

E-Z POUR FRAMES TYPE L FRAME

"S" Clear Opening

"S" Clear Opening

TRENCH GRATING SYSTEMS

"S" CLEAR SPAN

BOLTING BOLTED TAMPER CLOSE

INLET GRATES & FRAMES

18 MARTINSVILLE, IN TEL (800) 634-1988 FAX (765) 342-0382

MINIMUM WELD PATTERN Bearing

PANEL WIDTHS & LAYOUT

specification. Bearing Bar Span

2-1/4 x 1/4 106 118 97 108 STEEL TREADS ALUMINUM TREADS