The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material.
Gauge definition sheet metal.
In most of the world sheet metal thickness is consistently specified in millimeters.
A measure of thickness for sheet metal.
So inversely the smaller the gauge number the thicker the metal.
Sheet metal thickness gauges for steel are based on a weight of 41 82 pounds per square foot per inch of thickness.
Unit of thickness of a metal sheet or wire.
As the gauge number increases the material thickness decreases.
1 for sheet metal a retrogressive scale higher numbers mean lower thickness that starts with 10 gauge representing a thickness of 3 416 millimeters or 0 1345 inches.
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.
Why gauge thickness matters.
As the gauge number increases the thickness drops by 10 percent for example a 12 gauge sheet is 2 732 millimeters thick and a 13 gauge sheet is 2 391 millimeters thick.
How gauge thickness works.
For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter.
A sheet metal gauge sometimes spelled gage indicates the standard thickness of sheet metal for a specific material.
The larger the gauge number the thinner the metal.
Commonly used steel sheet metal ranges from 30 gauge to about 7 gauge.