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Standard Gauges of Sheet Metal Chart |
 Related Product(s)>> The thickness of sheet metal is commonly specified by a traditional, non-linear measure known as its gauge. Please note that ASTM states in specification ASTM A480-10a "The use of gage number is discouraged as being an archaic term of limited usefulness not having general agreement on meaning." Standard Sheet Metal Gauges| Gauge | US Standard Gauge | Sheet Steel | Galvanized Steel | Stainless Steel | Aluminum |
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7/0
0000000 | 0.500" | 12.700mm | | | | | | | | | 6/0
000000 | 0.469" | 11.908mm | | | | | 0.469" | 11.905mm | 0.580" | 14.732mm | 5/0
00000 | 0.438" | 11.113mm | | | | | 0.438" | 11.113mm | 0.517" | 13.119mm | 4/0
0000 | 0.406" | 10.320mm | | | | | 0.406" | 10.317mm | 0.460" | 11.684mm | 3/0
000 | 0.375" | 9.525mm | | | | | 0.375" | 9.525mm | 0.410" | 10.404mm | 2/0
00 | 0.344" | 8.733mm | | | | | 0.344" | 8.730mm | 0.365" | 9.266mm | 1/0
0 | 0.313" | 7.938mm | | | | | 0.313" | 7.938mm | 0.325" | 8.252mm | | 1 | 0.281" | 7.145mm | | | | | 0.281" | 7.142mm | 0.289" | 7.348mm | | 2 | 0.266" | 6.746mm | | | | | 0.266" | 6.746mm | 0.258" | 6.543mm | | 3 | 0.250" | 6.350mm | 0.239" | 6.073mm | | | 0.250" | 6.350mm | 0.229" | 5.827mm | | 4 | 0.234" | 5.954mm | 0.224" | 5.695mm | | | 0.234" | 5.954mm | 0.204" | 5.189mm | | 5 | 0.219" | 5.558mm | 0.209" | 5.314mm | | | 0.219" | 5.555mm | 0.182" | 4.620mm | | 6 | 0.203" | 5.159mm | 0.194" | 4.935mm | | | 0.203" | 5.159mm | 0.162" | 4.115mm | | 7 | 0.188" | 4.763mm | 0.179" | 4.554mm | | | 0.188" | 4.763mm | 0.144" | 3.665mm | | 8 | 0.172" | 4.366mm | 0.164" | 4.176mm | 0.168" | 4.267mm | 0.172" | 4.366mm | 0.129" | 3.264mm | | 9 | 0.156" | 3.970mm | 0.150" | 3.797mm | 0.153" | 3.886mm | 0.156" | 3.967mm | 0.114" | 2.906mm | | 10 | 0.141" | 3.571mm | 0.135" | 3.416mm | 0.138" | 3.505mm | 0.141" | 3.571mm | 0.102" | 2.588mm | | 11 | 0.125" | 3.175mm | 0.120" | 3.038mm | 0.123" | 3.124mm | 0.125" | 3.175mm | 0.091" | 2.304mm | | 12 | 0.109" | 2.779mm | 0.105" | 2.657mm | 0.108" | 2.743mm | 0.109" | 2.779mm | 0.081" | 2.052mm | | 13 | 0.094" | 2.383mm | 0.090" | 2.278mm | 0.093" | 2.362mm | 0.094" | 2.380mm | 0.072" | 1.829mm | | 14 | 0.078" | 1.984mm | 0.075" | 1.897mm | 0.079" | 2.007mm | 0.078" | 1.984mm | 0.064" | 1.628mm | | 15 | 0.070" | 1.786mm | 0.067" | 1.709mm | 0.071" | 1.803mm | 0.070" | 1.786mm | 0.057" | 1.450mm | | 16 | 0.063" | 1.588mm | 0.060" | 1.519mm | 0.064" | 1.626mm | 0.063" | 1.588mm | 0.051" | 1.290mm | | 17 | 0.056" | 1.430mm | 0.054" | 1.367mm | 0.058" | 1.473mm | 0.056" | 1.427mm | 0.045" | 1.151mm | | 18 | 0.050" | 1.270mm | 0.048" | 1.214mm | 0.052" | 1.321mm | 0.050" | 1.270mm | 0.040" | 1.024mm | | 19 | 0.044" | 1.113mm | 0.042" | 1.062mm | 0.046" | 1.168mm | 0.044" | 1.110mm | 0.036" | 0.912mm | | 20 | 0.038" | 0.953mm | 0.036" | 0.912mm | 0.040" | 1.016mm | 0.038" | 0.953mm | 0.032" | 0.813mm | | 21 | 0.034" | 0.874mm | 0.033" | 0.836mm | 0.037" | 0.940mm | 0.034" | 0.874mm | 0.029" | 0.724mm | | 22 | 0.031" | 0.795mm | 0.030" | 0.759mm | 0.034" | 0.864mm | 0.031" | 0.792mm | 0.025" | 0.643mm | | 23 | 0.028" | 0.714mm | 0.027" | 0.683mm | 0.031" | 0.787mm | 0.028" | 0.714mm | 0.023" | 0.574mm | | 24 | 0.025" | 0.635mm | 0.024" | 0.607mm | 0.028" | 0.711mm | 0.025" | 0.635mm | 0.020" | 0.511mm | | 25 | 0.022" | 0.556mm | 0.021" | 0.531mm | 0.025" | 0.635mm | 0.022" | 0.556mm | 0.018" | 0.455mm | | 26 | 0.019" | 0.478mm | 0.018" | 0.455mm | 0.022" | 0.559mm | 0.019" | 0.475mm | 0.016" | 0.404mm | | 27 | 0.017" | 0.437mm | 0.016" | 0.417mm | 0.020" | 0.508mm | 0.017" | 0.437mm | 0.014" | 0.361mm | | 28 | 0.016" | 0.396mm | 0.015" | 0.378mm | 0.019" | 0.483mm | 0.016" | 0.396mm | 0.013" | 0.320mm | | 29 | 0.014" | 0.358mm | 0.014" | 0.343mm | 0.017" | 0.432mm | 0.014" | 0.358mm | 0.011" | 0.287mm | | 30 | 0.013" | 0.318mm | 0.012" | 0.305mm | 0.016" | 0.406mm | 0.013" | 0.318mm | 0.010" | 0.254mm | | 31 | 0.011" | 0.277mm | 0.011" | 0.267mm | | | 0.011" | 0.277mm | 0.009" | 0.226mm | | 32 | 0.010" | 0.259mm | 0.010" | 0.246mm | | | 0.010" | 0.259mm | 0.008" | 0.203mm | | 33 | 0.009" | 0.239mm | 0.009" | 0.229mm | | | 0.009" | 0.239mm | 0.007" | 0.180mm | | 34 | 0.009" | 0.218mm | 0.008" | 0.208mm | | | 0.009" | 0.218mm | 0.006" | 0.160mm | | 35 | 0.008" | 0.198mm | 0.008" | 0.191mm | | | 0.008" | 0.198mm | 0.006" | 0.142mm | | 36 | 0.007" | 0.178mm | 0.007" | 0.170mm | | | 0.007" | 0.178mm | 0.005" | 0.127mm | | 37 | 0.007" | 0.168mm | 0.006" | 0.163mm | | | 0.007" | 0.168mm | 0.005" | 0.114mm | | 38 | 0.006" | 0.160mm | 0.006" | 0.152mm | | | 0.006" | 0.157mm | 0.004" | 0.102mm | | 39 | 0.006" | 0.150mm | | | | | | | | | | 40 | 0.006" | 0.140mm | | | | | | | | | | 41 | 0.005" | 0.135mm | | | | | | | | | | 42 | 0.005" | 0.130mm | | | | | | | | | | 43 | 0.005" | 0.124mm | | | | | | | | | | 44 | 0.005" | 0.119mm | | | | | | | | | |
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