Sheet metal gauge thickness chart for steel, aluminum, and stainless steel. | Gauge | Aluminum | Steel | Stainless |
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| 7 | 0.1443" | 0.1793" | 0.1875" |
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| 8 | 0.1285" | 0.1644" | 0.1719" |
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| 9 | 0.1144" | 0.1495" | 0.1563" |
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| 10 | 0.1019" | 0.1345" | 0.1406" |
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| 11 | 0.0907" | 0.1196" | 0.1250" |
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| 12 | 0.0808" | 0.1046" | 0.1094" |
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| 13 | 0.0720" | 0.0897" | 0.0938" |
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| 14 | 0.0641" | 0.0747" | 0.0781" |
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| 15 | 0.0571" | 0.0673" | 0.0703" |
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| 16 | 0.0508" | 0.0598" | 0.0625" |
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| 17 | 0.0453" | 0.0538" | 0.0563" |
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| 18 | 0.0403" | 0.0478" | 0.0500" |
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| 19 | 0.0359" | 0.0418" | 0.0438" |
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| 20 | 0.0320" | 0.0359" | 0.0375" |
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| 21 | 0.0285" | 0.0329" | 0.0344" |
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| 22 | 0.0253" | 0.0299" | 0.0313" |
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| 23 | 0.0226" | 0.0269" | 0.0281" |
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| 24 | 0.0201" | 0.0239" | 0.0250" |
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| 25 | 0.0179" | 0.0209" | 0.0219" |
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| 26 | 0.0159" | 0.0179" | 0.0188" |
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| 27 | 0.0142" | 0.0164" | 0.0172" |
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| 28 | 0.0126" | 0.0149" | 0.0156" |
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