The chart below shows the imperial standard sheet gauge definition with its metric equivalent and today’s commercially available ferrous (mild steel, Zintec, galvanised steel, stainless steel alloys) and non-ferrous (aluminium alloys, brass, copper) sheet.
| Imperial Gauge | Imperial equivalent in mm | Standard Metric sheet in mm |
| 10 | 3.25 | 3.0 |
| 12 | 2.64 | 2.5 |
| 14 | 2.03 | 2.0 |
| 16 | 1.63 | 1.5 |
| 18 | 1.22 | 1.2 |
| 20 | 0.91 | 0.9 |
| 22 | 0.71 | 0.7 |
| 24 | 0.56 | 0.6 |
| 26 | 0.46 | 0.5 |
If you have a specific sheet thickness that isn’t covered in the table above please give us a call. We can often source materials that may have been produced out of standard sheet tolerance but may be just what you are looking for.
