Common Sheet Metal Gauges

Approximate thickness in decimal parts of an inch.

Common sheet metal gauges.

For 18 ga crs the weight is 2 0 pounds per square foot. 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. Metal foil is especially common with aluminium often referred to as tinfoil.

This is known as the manufacturers standard gage for sheet steel. 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. The thickness of sheet metal starts from 0 5 mm and goes up to 6 mm.

16 ga crs is 2 5 pounds per square foot. 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. A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters. 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.

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. For other materials such as aluminum and brass the thicknesses will be different. The story of gauge. Approximate thickness in fractions of an inch.

The thickness of foil is usually up to 0 2 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. Sheet metal thickness gauges for steel are based on a weight of 41 82 pounds per square foot per inch of thickness. Lastly a standard exists for zinc in which a higher gauge number indicates a thicker sheet.

Corresponds to the standard steel thickness of 0 0329 inches 0 84mm.