Take for instance 12 gauge thickness across the material types listed below.
Sheet metal stainless steel gauge thickness.
Gauge to thickness chart.
Gague are used to specify the thickness of a metal sheet.
It is important to know that the gauge thicknesses also vary depending on the type of sheet metal being referenced.
Gauge to thickness chart click here for a printable pdf chart gauge.
Sheet metal thickness gauges for steel are based on a weight of 41 82 pounds per square foot per inch of thickness.
For other materials such as aluminum and brass the thicknesses will be different.
The gauge number 18 holds no relevance to the actual measurements.
This is known as the manufacturers standard gage for sheet steel.
Stainless steel is 0 105 thick aluminum is 0 080 copper is 0 108 and brass is 0 081.
Gauge to thickness chart.
Gauge stainless galvanized sheet steel aluminum fraction inches mm inches mm inches mm inches mm 30 0 0125 0 33 0 0157 0 40 0 0120 0 30 0 0100 0 25 29 0 0141 0 36 0 0172 0 44 0 0135 0 34 0 0113 0 29 28 1 64 0 0156 0 41 0 0187 0 47 0 0149 0 38 0 0126 0 32 27 0 0172 0 43 0 0202 0 51 0 0164 0 42 0 0142 0 36 26 0 0187 0 48 0 0217 0 55 0 0179 0 45 0 0159 40 25 0 0219 0 56 0 0247 0 63 0 0209.