Sheet metal gauge size chart 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.
Sheet metal gauge to mm.
This chart covers the common and uncommon sheet metal sizes for steel aluminum and galvanized steel.
Steel sheet metal tolerances.
0 1345 3 42 0 1405 3 57 0 1285 3 26 11.
Corresponds to the standard steel thickness of 0 0329 inches 0 84mm.
Standard steel mm non ferrous aluminum mm galvanized steel mm 000000.
The gauge number 18 holds no relevance to the actual measurements.
A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters.
Click here for a gauge to mm conversion chart.
Gauge nominal in mm max in mm min in mm 10.
Sheet metal thickness is denoted by gauge sometimes spelled gage which indicates a standard thickness before processing.
Processing may include polishing or the applying of protective plastics which will decrease or increase a sheet s thickness respectively.
The corresponding galvanized steel thickness is 0 0366 inches 0 93mm and the corresponding aluminum thickness is 0 028 inches 0 71mm.
The story of gauge.
For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter.
Typically the even number gauges are used more frequently.
When working with sheet metal the term gauge is often used.
The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material.