Standard Steel Sheet Metal Gauges

The manufacturers standard gage provides the thicknesses for standard steel galvanized steel and stainless steel.

Standard steel sheet metal gauges. For other materials such as aluminum and brass the thicknesses will be different. The larger the gauge number the thinner the metal. Please note that astm states in specification astm a480 10a the use of gage number is discouraged as being an archaic term of limited usefulness not having general agreement on. 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.

A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters. This is known as the manufacturers standard gage for sheet steel. Standard gauge for sheet and plate iron and steel. Standard gauge for sheet and plate iron and steel.

In the u s the thickness of sheet metal is commonly specified by a traditional non linear measure known as its gauge. Standard gauges of sheet metal chart. For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter. Gauges are neither standard nor metric and the values are independent of those measurement systems.

Commonly used steel sheet metal ranges from 30 gauge to about 7 gauge. Gauge differs between ferrous iron based metals and nonferrous metals such as aluminum or copper.