Sheet Metal Gauge & Thickness: For Ferrous and Nonferrous Metals
Sheet Metal Gauge & Thickness: For Ferrous and Nonferrous Metals
Sheet Metal Gauge & Thickness: For Ferrous and Nonferrous Metals
Thickness†
Ferrous Metals Nonferrous Metals
Gauge No. Steel Stainless Steel Aluminum, Brass, etc.
Manufacturers’
Galvanized Sheet U.S. Standard Brown & Sharpe
Standard
in. (mm) in. (mm) in. (mm)
in. (mm)
7/0 (0000000) --- --- 0.50000 (12.70000) 0.65135 (16.54439)
6/0 (000000) --- --- 0.46875 (11.90625) 0.58005 (14.73324)
5/0 (00000) --- --- 0.43775 (11.11885) 0.51655 (13.12034)
4/0 (0000) --- --- 0.40625 (10.31875) 0.46000 (11.68400)
3/0 (000) --- --- 0.37500 (9.52500) 0.40964 (10.40486)
2/0 (00) --- --- 0.34375 (8.73125) 0.36480 (9.26592)
1/0 (0) --- --- 0.31250 (7.93750) 0.32486 (8.25144)
1 --- --- 0.28125 (7.14375) 0.28930 (7.34822)
2 --- --- 0.26563 (6.74688) 0.25763 (6.54380)
3 0.2391 (6.0731) --- 0.25000 (6.35000) 0.22942 (5.82727)
4 0.2242 (5.6947) --- 0.23438 (5.95313) 0.20431 (5.18947)
5 0.2092 (5.3137) --- 0.21875 (5.55625) 0.18194 (4.62128)
6 0.1943 (4.9352) --- 0.20313 (5.15938) 0.16202 (4.11531)
7 0.1793 (4.5542) --- 0.18750 (4.76250) 0.14428 (3.66471)
8 0.1644 (4.1758) 0.1681 (4.2697) 0.17188 (4.36563) 0.12849 (3.26365)
9 0.1495 (3.7973) 0.1532 (3.8913) 0.15625 (3.96875) 0.11443 (2.90652)
10 0.1345 (3.4163) 0.1382 (3.5103) 0.14063 (3.57188) 0.10189 (2.58801)
11 0.1196 (3.0378) 0.1233 (3.1318) 0.12500 (3.17500) 0.09074 (2.30485)
12 0.1046 (2.6568) 0.1084 (2.7534) 0.10938 (2.77813) 0.08081 (2.05252)
13 0.0897 (2.2784) 0.0934 (2.3724) 0.09375 (2.38125) 0.07196 (1.82781)
14 0.0747 (1.8974) 0.0785 (1.9939) 0.07813 (1.98438) 0.06408 (1.62773)
15 0.0673 (1.7094) 0.0710 (1.8034) 0.07031 (1.78594) 0.05707 (1.44953)
16 0.0598 (1.5189) 0.0635 (1.6129) 0.06250 (1.58750) 0.05082 (1.29083)
17 0.0538 (1.3665) 0.0575 (1.4605) 0.05625 (1.42875) 0.04526 (1.14953)
18 0.0478 (1.2141) 0.0516 (1.3106) 0.05000 (1.27000) 0.04030 (1.02370)
19 0.0418 (1.0617) 0.0456 (1.1582) 0.04375 (1.11125) 0.03589 (0.91161)
20 0.0359 (0.9119) 0.0396 (1.0058) 0.03750 (0.95250) 0.03196 (0.81181)
21 0.0329 (0.8357) 0.0366 (0.9296) 0.03438 (0.87313) 0.02846 (0.72293)
22 0.0299 (0.7595) 0.0336 (0.8534) 0.03125 (0.79375) 0.02535 (0.64381)
23 0.0269 (0.6833) 0.0306 (0.7772) 0.02813 (0.71438) 0.02257 (0.57330)
24 0.0239 (0.6071) 0.0276 (0.7010) 0.02500 (0.63500) 0.02010 (0.51054)
25 0.0209 (0.5309) 0.0247 (0.6274) 0.02188 (0.55563) 0.01790 (0.45466)
26 0.0179 (0.4547) 0.0217 (0.5512) 0.01875 (0.47625) 0.01594 (0.40488)
27 0.0164 (0.4166) 0.0202 (0.5131) 0.01719 (0.43656) 0.01420 (0.36055)
28 0.0149 (0.3785) 0.0187 (0.4750) 0.01563 (0.39688) 0.01264 (0.32108)
29 0.0135 (0.3429) 0.0172 (0.4369) 0.01406 (0.35719) 0.01126 (0.28593)
30 0.0120 (0.3048) 0.0157 (0.3988) 0.01250 (0.31750) 0.01003 (0.25464)
31 0.0105 (0.2667) 0.0142 (0.3607) 0.01094 (0.27781) 0.00893 (0.22677)
32 0.0097 (0.2464) 0.0134 (0.3404) 0.01016 (0.25797) 0.00795 (0.20193)
33 0.0090 (0.2286) --- 0.00938 (0.23813) 0.00708 (0.17983)
34 0.0082 (0.2083) --- 0.00859 (0.21828) 0.00630 (0.16012)
35 0.0075 (0.1905) --- 0.00781 (0.19844) 0.00561 (0.14260)
36 0.0067 (0.1702) --- 0.00703 (0.17859) 0.00500 (0.12700)
37 0.0064 (0.1626) --- 0.00664 (0.16867) 0.00445 (0.11311)
38 0.0060 (0.1524) --- 0.00625 (0.15875) 0.00397 (0.10071)
39 --- --- --- 0.00353 (0.08969)
40 --- --- --- 0.00314 (0.07986)
†
Gauge (also “gage”) thickness in inches (millimeters) is approximate.