For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter.
Steel sheet metal gauge thickness.
For other materials such as aluminum and brass the thicknesses will be different.
Gauge to thickness chart click here for a printable pdf chart gauge.
The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material.
Commonly used steel sheet metal ranges from 30 gauge to about 7 gauge.
The larger the gauge number the thinner the metal.
In the u s the thickness of sheet metal is commonly specified by a traditional non linear measure known as its gauge.
In most of the world sheet metal thickness is consistently specified in millimeters.
Sheet metal thickness gauges for steel are based on a weight of 41 82 pounds per square foot per inch of thickness.
This is known as the manufacturers standard gage for sheet steel.
A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters.