Steel Sheet Gauge Size Chart

The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material.

Steel sheet gauge size chart.

Gauges are neither standard nor metric and the values are independent of those measurement systems. Let s make holes faster. A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters. 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. 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. Use our handy chart to convert standard gauge numbers in decimals of an inch for sheet steel aluminum and stainless steel. Gauge to thickness chart gauge stainless galvanized sheet steel aluminum fraction inches mm inches mm inches mm inches mm 30 0 0125 0 33 0 0157 0 40 0 0120 0 30 0 0100 0 25.

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.