Thickness InchesWeight Ibs/sq ft
Gauge
Number
Fractional
Approximation
Stainless
Gauge
Sheet Steel
Standard
Stainless
Steel
Sheet
Steel
Galvanized
Sheet
7/0 1/2 0.5000 20.00
6/0 0.4687 18.75
5/0 7/16 0.4375 17.50
4/0 0.4062 16.25
3/0 3/8 0.3750 15.00
2/0 0.3437 13.75
0 5/16 0.3125 12.50
1 0.2812 11.25
2 0.2656 10.62
3 1/4 0.2500 0.2391 10.00
4 15/64 0.2344 0.2242 9.37
5 7/32 0.2187 0.2092 8.75
6 13/64 0.2031 0.1943 8.12
7 3/16 0.1875 0.1793 7.50
8 11/64 0.1719 0.1644 6.87
9 5/32 0.1562 0.1495 6.25
10 9/64 0.1406 0.1345 5.7937 5.62 5.7812
11 1/8 0.1250 0.1196 5.1500 5.00 5.1562
12 7/64 0.1094 0.1046 4.5063 4.37 4.5312
13 3/32 0.0937 0.0897 3.8625 3.75 3.9062
14 5/64 0.0781 0.0747 3.2187 3.12 3.2812
15 0.0703 0.0673 2.8968 2.81 2.9687
16 1/16 0.0625 0.0598 2.5750 2.50 2.6562
17 0.0562 0.0538 2.3175 2.25 2.4062
18 0.0500 0.0478 2.0600 2.00 2.1562
19 0.0437 0.0418 1.8025 1.75 1.9062
20 0.0375 0.0359 1.545 1.50 1.6562
21 0.0344 0.0329 1.416 1.37 1.5312
22 1/32 0.0312 0.0299 1.2875 1.25 1.4062
23 0.0281 0.0269 1.1587 1.12 1.2812
24 0.0250 0.0239 1.0300 1.00 1.1562
25 0.0219 0.0209 0.9013 0.88 1.0312
26 0.0187 0.0179 0.7725 0.75 0.9062
27 0.0172 0.0164 0.7081 0.69 0.8437
28 1/64 0.0156 0.0149 0.6438 0.63 0.7812
29 0.0141 0.0135 0.5794 0.56 0.7187
30 0.0125 0.0120 0.5150 0.50 0.6562
31 0.0109 0.0105 0.44
32 0.0102 0.0097 0.41
33 0.0094 0.0090 0.38
34 0.0086 0.0082 0.34
35 0.0078 0.0075 0.31
36 0.0070 0.0067 0.28
37 0.0066 0.0064 0.27
38 0.0062 0.0060 0.25
39 0.0059 0.23
40 0.0055 0.22
41 0.0053 0.21
42 0.0051 0.20
43 0.0049 0.20
44 0.0047 0.19