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Sheet Metal Gauge: steel
4 to 9
Sheet metal gauge thickness chart — gauge number to thickness and weight conversions for steel, aluminum, stainless steel, and other metals
| material | gauge number | material standard | thickness in (in) | thickness mm (mm) | weight lb ft2 (lb/ft2) |
|---|---|---|---|---|---|
| steel | 4 | steel mfg std | 0.2242 | 5.695 | 9.375 |
| steel | 5 | steel mfg std | 0.2092 | 5.314 | 8.75 |
| steel | 6 | steel mfg std | 0.1943 | 4.935 | 8.125 |
| steel | 7 | steel mfg std | 0.1793 | 4.554 | 7.5 |
| steel | 8 | steel mfg std | 0.1644 | 4.176 | 6.875 |
| steel | 9 | steel mfg std | 0.1495 | 3.797 | 6.25 |
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