STEEL GAUGE CHART

Provides the standard thickness of sheet metal.

As the gauge number increases, the material thickness decreases. Sheet metal thickness gauges for steel are based on a weight of 41.82 pounds per square foot per inch of thickness. This is known as the Manufacturers’ Standard Gauge for Sheet Steel. For galvanized material, the decimal by gauge and weight per pound is different than steel due to the coating weight.

Example 1: A 10 gauge steel sheet which has a thickness of 0.1345 inches will weigh 41.82 * 0.1345 = 5.625 pounds per square foot.

Example 2: A 10 gauge galvanized sheet which has a thickness of .1382 inches will weigh 41.37 * .1382 = 5.718 pounds per square foot.

You can use the steel gauge chart to source the proper material to fit you and your customer’s needs. We will help you determine the right amount of steel for your hot-rolled, hot-rolled pickled and oiled, cold-rolled or galvanized projects.

GAUGE HR, HRPO & CR NOM HR, HRPO & CR #/SQ FT HR & HRPO THICKNESS CR THICKNESS GALVANIZED THICKNESS GALVANIZED NOM GALVANIZED #/SQ FT GAUGE
AISI STANDARDS
1" 1 40.8 .950 / 1.05



1"
3/4 0.75 30.6 .735 / .775



3/4
5/8 0.625 25.5 .615 / .645



5/8
1/2 0.5 20.4 .490 / .520



1/2
3/8 0.375 15.31 .365 / .395



3/8
5/16 0.3125 12.76 .302 / .325



5/16
1/4 0.25 10.2 .235 / .267



1/4
4 0.2242 9.375 .2152 / .2332



4
5 0.2092 8.75 .2002 / .2182



5
6 0.1943 8.125 .1853 / .2033



6
3/16 0.1875 7.65 .1779 / .1979



3/16
7 0.1793 7.5 .1713 / .1873



7
8 0.1644 6.875 .1564 / .1724



8
9 0.1495 6.25 .1415 / .1575



9
10 0.1345 5.625 .1265 / .1425 .1285 / .1405 .1292 / .1472 0.1382 5.718 10
11 0.119 5 .1106 / .1266 .1126 / .1256 .1143 / .1323 0.1233 5.156 11
12 0.1046 4.375 .0966 / .1116 .0986 / .1106 .0986 / .1174 0.1084 4.531 12
13 0.0897 3.75 .0827 / .0967 .0847 / .0947 .0854 / .1014 0.0934 3.906 13
14 0.0747 3.125 .0677 / .0817 .0697 / .0797 .0705 / .0865 0.0784 3.281 14
15 0.673 2.812 .0613 / .0733 .0623 / .0723 .065 / .077 0.071 2.969 15
16 0.0598 2.5 .0538 / .0658 .0548 / .0648 .0575 / .0695 0.0635 2.656 16
17 0.0538 2.25
.0498 / .0578 .0525 / .0625 0.0576 2.408 17
18 0.0478 2
.0438 / .0518 .0466 / .0566 0.0516 2.156 18
19 0.0418 1.75
.0378 / .0458 .0406 / .0506 0.0456 1.906 19
20 0.0359 1.5
.0329 / .0389 .0356 / .0436 0.0396 1.656 20
21 0.0329 1.375
.0299 / .0359 .0326 / .0406 0.0366 1.531 21
22 0.0299 1.25
.0269 / .0329 .0296 / .0376 0.0336 1.406 22
23 0.0269 1.125
.0239 / .0299 .0266 / .0346 0.0306 1.281 23
24 0.0239 1
.0209 / .0269 .0236 / .0316 0.0276 1.156 24
25 0.0209 0.875
.0179 / .0239 .0207 / .0287 0.0247 1.031 25
26 0.0179 0.75
.0159 / .0199 .0187 / .0247 0.0217 0.906 26
27 0.0164 0.688
.0144 / .0184 .0172 / .0232 0.0202 0.814 27
28 0.0149 0.625
.0129 / .0169 .0157 / .0217 0.0187 0.781 28
29



.0142 / .0202 0.0172 0.719 29
30



.0127 / .0187 0.0157 0.656 30

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