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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 GaugesGauge US Standard Gauge Sheet Steel Galvanized Steel Stainless Steel Aluminum 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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