Galvanized steel sheet metal measuring 30 gauges equals 0 0157 inch but the same gauge standard steel sheet metal measures 0 0120 inch and 30 gauge stainless steel measures 0 0125 inch.
Sheet metal measuring gauge.
If you want to find out what gauge your sheet metal is measure its thickness using a regular tape measure.
A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters.
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Then using a sheet metal gauge chart you can match that thickness up with the appropriate numbered gauge of your product.
For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter.
The gauge number 18 holds no relevance to the actual measurements.
The higher the numbered gauge a piece of metal is the thicker the piece is in millimeters.
The gauge of a sheet of metal is a reference to how thick it is.
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