The sheet metal gauge refers to the thickness of sheet metals. The large the gauge number, the thinner the metal sheet. Pls note that for different types of metals, the thickness is different under the same gauge number.
Gauge | US Standard Gauge | Sheet Steel | Galvanized Steel | Stainless Steel | Aluminum | |||||
---|---|---|---|---|---|---|---|---|---|---|
inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | |
7/0 | 0.5 | 12.7 | ||||||||
0 | ||||||||||
6/0 | 0.469 | 11.908 | 0.469 | 11.905 | 0.58 | 14.732 | ||||
0 | ||||||||||
5/0 | 0.438 | 11.113 | 0.438 | 11.113 | 0.517 | 13.119 | ||||
0 | ||||||||||
4/0 | 0.406 | 10.32 | 0.406 | 10.317 | 0.46 | 11.684 | ||||
0 | ||||||||||
3/0 | 0.375 | 9.525 | 0.375 | 9.525 | 0.41 | 10.404 | ||||
0 | ||||||||||
2/0 | 0.344 | 8.733 | 0.344 | 8.73 | 0.365 | 9.266 | ||||
0 | ||||||||||
1/0 | 0.313 | 7.938 | 0.313 | 7.938 | 0.325 | 8.252 | ||||
0 | ||||||||||
1 | 0.281 | 7.145 | 0.281 | 7.142 | 0.289 | 7.348 | ||||
2 | 0.266 | 6.746 | 0.266 | 6.746 | 0.258 | 6.543 | ||||
3 | 0.25 | 6.35 | 0.239 | 6.073 | 0.25 | 6.35 | 0.229 | 5.827 | ||
4 | 0.234 | 5.954 | 0.224 | 5.695 | 0.234 | 5.954 | 0.204 | 5.189 | ||
5 | 0.219 | 5.558 | 0.209 | 5.314 | 0.219 | 5.555 | 0.182 | 4.62 | ||
6 | 0.203 | 5.159 | 0.194 | 4.935 | 0.203 | 5.159 | 0.162 | 4.115 | ||
7 | 0.188 | 4.763 | 0.179 | 4.554 | 0.188 | 4.763 | 0.144 | 3.665 | ||
8 | 0.172 | 4.366 | 0.164 | 4.176 | 0.168 | 4.267 | 0.172 | 4.366 | 0.129 | 3.264 |
9 | 0.156 | 3.97 | 0.15 | 3.797 | 0.153 | 3.886 | 0.156 | 3.967 | 0.114 | 2.906 |
10 | 0.141 | 3.571 | 0.135 | 3.416 | 0.138 | 3.505 | 0.141 | 3.571 | 0.102 | 2.588 |
11 | 0.125 | 3.175 | 0.12 | 3.038 | 0.123 | 3.124 | 0.125 | 3.175 | 0.091 | 2.304 |
12 | 0.109 | 2.779 | 0.105 | 2.657 | 0.108 | 2.743 | 0.109 | 2.779 | 0.081 | 2.052 |
13 | 0.094 | 2.383 | 0.09 | 2.278 | 0.093 | 2.362 | 0.094 | 2.38 | 0.072 | 1.829 |
14 | 0.078 | 1.984 | 0.075 | 1.897 | 0.079 | 2.007 | 0.078 | 1.984 | 0.064 | 1.628 |
15 | 0.07 | 1.786 | 0.067 | 1.709 | 0.071 | 1.803 | 0.07 | 1.786 | 0.057 | 1.45 |
16 | 0.063 | 1.588 | 0.06 | 1.519 | 0.064 | 1.626 | 0.063 | 1.588 | 0.051 | 1.29 |
17 | 0.056 | 1.43 | 0.054 | 1.367 | 0.058 | 1.473 | 0.056 | 1.427 | 0.045 | 1.151 |
18 | 0.05 | 1.27 | 0.048 | 1.214 | 0.052 | 1.321 | 0.05 | 1.27 | 0.04 | 1.024 |
19 | 0.044 | 1.113 | 0.042 | 1.062 | 0.046 | 1.168 | 0.044 | 1.11 | 0.036 | 0.912 |
20 | 0.038 | 0.953 | 0.036 | 0.912 | 0.04 | 1.016 | 0.038 | 0.953 | 0.032 | 0.813 |
21 | 0.034 | 0.874 | 0.033 | 0.836 | 0.037 | 0.94 | 0.034 | 0.874 | 0.029 | 0.724 |
22 | 0.031 | 0.795 | 0.03 | 0.759 | 0.034 | 0.864 | 0.031 | 0.792 | 0.025 | 0.643 |
23 | 0.028 | 0.714 | 0.027 | 0.683 | 0.031 | 0.787 | 0.028 | 0.714 | 0.023 | 0.574 |
24 | 0.025 | 0.635 | 0.024 | 0.607 | 0.028 | 0.711 | 0.025 | 0.635 | 0.02 | 0.511 |
25 | 0.022 | 0.556 | 0.021 | 0.531 | 0.025 | 0.635 | 0.022 | 0.556 | 0.018 | 0.455 |
26 | 0.019 | 0.478 | 0.018 | 0.455 | 0.022 | 0.559 | 0.019 | 0.475 | 0.016 | 0.404 |
27 | 0.017 | 0.437 | 0.016 | 0.417 | 0.02 | 0.508 | 0.017 | 0.437 | 0.014 | 0.361 |
28 | 0.016 | 0.396 | 0.015 | 0.378 | 0.019 | 0.483 | 0.016 | 0.396 | 0.013 | 0.32 |
29 | 0.014 | 0.358 | 0.014 | 0.343 | 0.017 | 0.432 | 0.014 | 0.358 | 0.011 | 0.287 |
30 | 0.013 | 0.318 | 0.012 | 0.305 | 0.016 | 0.406 | 0.013 | 0.318 | 0.01 | 0.254 |
31 | 0.011 | 0.277 | 0.011 | 0.267 | 0.011 | 0.277 | 0.009 | 0.226 | ||
32 | 0.01 | 0.259 | 0.01 | 0.246 | 0.01 | 0.259 | 0.008 | 0.203 | ||
33 | 0.009 | 0.239 | 0.009 | 0.229 | 0.009 | 0.239 | 0.007 | 0.18 | ||
34 | 0.009 | 0.218 | 0.008 | 0.208 | 0.009 | 0.218 | 0.006 | 0.16 | ||
35 | 0.008 | 0.198 | 0.008 | 0.191 | 0.008 | 0.198 | 0.006 | 0.142 | ||
36 | 0.007 | 0.178 | 0.007 | 0.17 | 0.007 | 0.178 | 0.005 | 0.127 | ||
37 | 0.007 | 0.168 | 0.006 | 0.163 | 0.007 | 0.168 | 0.005 | 0.114 | ||
38 | 0.006 | 0.16 | 0.006 | 0.152 | 0.006 | 0.157 | 0.004 | 0.102 | ||
39 | 0.006 | 0.15 | ||||||||
40 | 0.006 | 0.14 | ||||||||
41 | 0.005 | 0.135 | ||||||||
42 | 0.005 | 0.13 | ||||||||
43 | 0.005 | 0.124 | ||||||||
44 | 0.005 | 0.119 |