Sheet Metal Gage Reference
| Gage | Standard US Gage | Galvanized Steel | Stainless Steel | Aluminum Sheet | Strip & Tubing | Zinc Sheet |
|---|---|---|---|---|---|---|
| 30 | 0.0125" | 0.0160" | 0.0125" | 0.0100" | 0.0120" | - |
| 29 | 0.0141" | 0.0170" | 0.0141" | 0.0113" | 0.0130" | - |
| 28 | 0.0156" | 0.0190" | 0.0156" | 0.0126" | 0.0140" | - |
| 27 | 0.0172" | 0.0200" | 0.0172" | 0.0142" | 0.0160" | - |
| 26 | 0.0188" | 0.0220" | 0.0187" | 0.0159" | 0.0180" | - |
| 25 | 0.0219" | 0.0250" | 0.0219" | 0.0179" | 0.0200" | - |
| 24 | 0.0250" | 0.0280" | 0.0250" | 0.0201" | 0.0220" | 0.1250" |
| 23 | 0.0281" | 0.0310" | 0.0281" | 0.0226" | 0.0250" | 0.1000" |
| 22 | 0.0313" | 0.0340" | 0.0312" | 0.0253" | 0.0280" | 0.0900" |
| 21 | 0.0344" | 0.0370" | 0.0344" | 0.0285" | 0.0320" | 0.0800" |
| 20 | 0.0375" | 0.0400" | 0.0375" | 0.0320" | 0.0350" | 0.0700" |
| 19 | 0.0438" | 0.0460" | 0.0437" | 0.0359" | 0.0420" | 0.0600" |
| 18 | 0.0500" | 0.0520" | 0.0500" | 0.0403" | 0.0490" | 0.0550" |
| 17 | 0.0563" | 0.0580" | 0.0562" | 0.0453" | 0.0580" | 0.0500" |
| 16 | 0.0625" | 0.0640" | 0.0625" | 0.0508" | 0.0650" | 0.0450" |
| Gage | Standard US Gage | Galvanized Steel | Stainless Steel | Aluminum Sheet | Strip & Tubing | Zinc Sheet |
| 15 | 0.0703" | 0.0710" | 0.0703" | 0.0571" | 0.0720" | 0.0400" |
| 14 | 0.0781" | 0.0790" | 0.0781" | 0.0641" | 0.0830" | 0.0360" |
| 13 | 0.0938" | 0.0930" | 0.0937" | 0.0720" | 0.0950" | 0.0320" |
| 12 | 0.1094" | 0.1080" | 0.1094" | 0.0808" | 0.1090" | 0.0280" |
| 11 | 0.1250" | 0.1230" | 0.1250" | 0.0907" | 0.1200" | 0.0240" |
| 10 | 0.1406" | 0.1380" | 0.1406" | 0.1019" | 0.1340" | 0.0200" |
| 9 | 0.1563" | 0.1530" | 0.1562" | 0.1144" | 0.1480" | 0.0180" |
| 8 | 0.1719" | 0.1680" | 0.1719" | 0.1285" | 0.1650" | 0.0160" |
| 7 | 0.1875" | - | 0.1875" | 0.1443" | 0.1800" | 0.0140" |
| 6 | 0.2031" | - | 0.2031" | 0.1620" | 0.2030" | 0.0120" |
| 5 | 0.2188" | - | 0.2187" | 0.1819" | 0.2200" | 0.0100" |
| 4 | 0.2344" | - | 0.2344" | 0.2043" | 0.2380" | 0.0080" |
| 3 | 0.2500" | - | 0.2500" | 0.2294" | 0.2590" | 0.0060" |
| 2 | 0.2656" | - | 0.2656" | 0.2576" | 0.2840" | 0.0040" |
| 1 | 0.2813" | - | 0.2812" | 0.2893" | 0.3000" | 0.0020" |