Gages Of Sheet Metal Sizes

Gauge or gage sizes are numbers that indicate the thickness of a piece of sheet metal with a higher number referring to a thinner sheet.

Gages of sheet metal sizes.

Gague are used to specify the thickness of a metal sheet. 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 meaning. Use the chart below to convert standard gauge numbers in decimals of an inch for sheet steel aluminum and stainless steel. Gague ga is a length measurement unit for diameters originating in north america and belongs to the browne sharpe metering system.

A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters. The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material. The gauge number 18 holds no relevance to the actual measurements. The thickness of sheet metal is commonly specified by a traditional non linear measure known as its gauge.

Originally used in the fields of medicine and jewellery the larger the number the smaller the diameter and now it is also used to indicate the thickness. For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter.