Steel Sheet Gage Thicknesses

This is known as the manufacturers standard gage for sheet steel.
Steel sheet gage thicknesses. Gague are used to specify the thickness of a metal sheet. Gauge differs between ferrous iron based metals and nonferrous metals such as aluminum or copper. Originally used in the. Approximate thickness in decimal parts of an inch.
26 gauge 24 gauge 20 gauge 18 gauge 16 gauge 14 gauge 1 8 and 1 4. The manufacturers standard gage provides the thicknesses for standard steel galvanized steel and stainless steel. When working with sheet metal the term gauge is often used. Kynar galvalume steel for metal roofing and gutters.
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. 0 7 mm 0 8mm and 1 5 mm. For other materials such as aluminum and brass the thicknesses will be different. The gauge number 18 holds no relevance to the actual measurements.
Gauge to thickness chart click here for a printable pdf chart gauge. Commonly used steel sheet metal ranges from 30 gauge to about 7 gauge. Gague ga is a length measurement unit for diameters originating in north america and belongs to the browne sharpe metering system. Approximate thickness in fractions of an inch.
The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material. Approximate thickness in millimeters. Sheet metal thickness gauges for steel are based on a weight of 41 82 pounds per square foot per inch of thickness. Kynar aluminum for metal roofing.
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. The larger the gauge number the thinner the metal. 0 027 or 0 032 for seamless gutters and any other thickness for custom gutters.
In the u s the thickness of sheet metal is commonly specified by a traditional non linear measure known as its gauge.