How To Measure Sheet Metal Gauge Size

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.

How to measure sheet metal gauge size.

Metal sheet thickness is measured in gauge. Use the millimeter hash marks to find the most accurate measurement. Originally used in the fields of medicine and jewellery the larger the. 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 29 0 0141 0 36 0 0172 0 44 0 0135 0 34 0 0113 0 29 28 1 64 0 0156 0 41 0 0187 0 47 0 0149 0 38 0 0126 0 32 27 0 0172 0 43 0 0202 0 51 0 0164 0 42 0 0142 0 36 26 0 0187 0 48 0 0217 0 55 0 0179 0 45 0 0159 40 25 0 0219 0 56 0 0247 0 63 0 0209.

The gauge number 18 holds no relevance to the actual measurements. 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. How to measure sheet metal gauge thickness. Wire conductor sizes are also measured in gauge and are equivalent to the non ferrous thicknesses listed below but we have an article specific to wire gauge.

The table below provides conversion to inches. Gauge to thickness chart. When working with sheet metal the term gauge is often used. Decimal nearest fractional 4 112.

It should be noted that aluminum is usually classified by inches rather than gauge as there is no official gauge standard for aluminum. Use a tape measure to find the thickness of your sheet metal piece. Related product s the thickness of sheet metal is commonly specified by a traditional non linear measure known as its gauge. 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.

The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material. Gague are used to specify the thickness of a metal sheet. Us sheet metal screw diameters. Gauge to thickness chart.

Print this page. A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters. Multiply the number of millimeters by 0 03937 to convert to inches. If your measurement was 55.