The thickness of sheet metal is commonly specified by a traditional non linear measure known as its gauge.
Ga size sheet metal.
The gauge number 18 holds no relevance to the actual measurements.
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Corresponds to the standard steel thickness of 0 0329 inches 0 84mm.
Metal gauges below you ll find the info you need with our sheet steel stainless steel and aluminum sheet metal charts.
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.
The story of gauge.
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.
The corresponding galvanized steel thickness is 0 0366 inches 0 93mm and the corresponding aluminum thickness is 0 028 inches 0 71mm.
A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters.
For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter.
Gague are used to specify the thickness of a metal sheet.
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.
Gague ga is a length measurement unit for diameters originating in north america and belongs to the browne sharpe metering system.