Common Sheet Metal Gauges

For the purpose of securing uniformity the following is established as the only standard gauge for sheet and plate iron and steel in the united states of america namely.

Common sheet metal gauges.

For other materials such as aluminum and brass the thicknesses will be different. Approximate thickness in fractions of an inch. Sheet metal is the next in line. Sheet metal thickness gauges for steel are based on a weight of 41 82 pounds per square foot per inch of thickness.

For 18 ga crs the weight is 2 0 pounds per square foot. The corresponding galvanized steel thickness is 0 0366 inches 0 93mm and the corresponding aluminum thickness is 0 028 inches 0 71mm. Use the chart below to convert standard gauge numbers in decimals of an inch for sheet steel aluminum and stainless steel. Sheet metal manufacturing and services the following sheet metal gauge size reference chart gives the weight and thickness of sheet metal given as a gauge sometimes spelled gage and indicates the standard thickness of sheet metal and wire for most materials as the gauge number increases the material thickness decreases.

Anything above that is a metal plate. Approximate thickness in decimal parts of an inch. The thickness of foil is usually up to 0 2 mm. For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter.

The thickness of sheet metal starts from 0 5 mm and goes up to 6 mm. Thus a 10 gauge steel sheet which has a thickness of 0 1345 inches will weigh 41 82 0 1345 5 625 pounds per square foot. 16 ga crs is 2 5 pounds per square foot. Metal gauges below you ll find the info you need with our sheet steel stainless steel and aluminum sheet metal charts.

This is known as the manufacturers standard gage for sheet steel. The story of gauge. In the uk the birmingham gage bg is used for a variety of metals and should not be confused with the birmingham wire gage bwg which is used for wires. Corresponds to the standard steel thickness of 0 0329 inches 0 84mm.

The brown and sharpe gage also known as the american wire gage awg is used for most non ferrous metals such as aluminum and brass.