Metal Gauges Below you’ll find the info you need with our sheet steel, stainless steel and aluminum sheet metal charts. When it comes to 26 vs. 29, 26-gauge is the thicker metal. The American Iron and Steel Institute (AISI) publishes the accepted measurement standards for steel thickness. Use the chart below to convert standard gauge numbers in decimals of an inch for sheet steel, aluminum and stainless steel. Most people working with steel sheet metals consult to a particular chart for reference when it comes to gauge number and thickness. Metal sheet thickness is measured in gauge. 7.179--8.164.172-9.150.156-10.135.141-11.120.125-12.105.109-13.090.094.093: 14.075.078.079: 15.067.070.071: 16.060.063 SCAFCO’s products exceed industry standards as they are manufactured from 57 ksi steel in place of 50 ksi and G90 in place of G60 for 68 mil and heavier. Kynar Aluminum for metal roofing: 0.032" or 0.040". 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. Processing may include polishing, or the applying of protective plastics which will decrease or increase a sheet’s thickness … That’s why SCAFCO steel framing products are manufactured from 100% prime mill certified steel. Stainless steel: 26 gauge, 24 gauge, 20 gauge, 18 gauge, 16 gauge, 14 gauge, 1/8" and 1/4". Convert Gauges, BWG, USG to inches and millimeters 28 gauge steel has an average thickness of .0187 (minimum .0157) and 26 gauge is .0217 (minimum .0187). This chart is usually called the Steel Gauge Chart. corresponds to the standard steel thickness of 0.0329 inches (0.84mm); the corresponding galvanized steel thickness is 0.0366 inches (0.93mm), and the corresponding aluminum thickness is 0.028 inches (0.71mm). steel: stainless stl. Aluminum for gutters: 0.027" or 0.032" for seamless gutters and any other thickness for custom gutters. gage no. The American Iron and Steel Institute (AISI) publishes the accepted measurement standards for steel thickness. Click here for a Gauge to mm Conversion Chart.. Sheet metal thickness is denoted by gauge, sometimes spelled gage, which indicates a standard thickness before processing. Zinc: 0.7 mm, 0.8mm and 1.5 mm. Sheet metal thickness gauges for steel are based on a weight of 41.82 pounds per square foot per inch of thickness. 29 gauge steel (the standard in the post frame industry) has an average thickness of .0172 of an inch (with a minimum of .0142). For example, 21Ga. alum. It practically gives you the figures which indicate the sheet metal’s gauge and thickness in millimeter, inches and even fractional regular measurements. Most homes in residential areas use 29-gauge metal panels. A sheet metal gauge (sometimes spelled "gage") indicates the standard thickness of sheet metal for a specific material. Mesteel - Steel Thickness Conversion Tables tables. The story of gauge. What is thicker: 26-gauge or 29-gauge? 28 gauge steel has an average thickness of .0187 (minimum .0157) and 26 gauge is .0217 (minimum .0187). For instance, stainless steel will have a difference in inches than carbon steel. 29 gauge steel (the standard in the post frame industry) has an average thickness of .0172 of an inch (with a minimum of .0142). The weight of 29-gauge metal roofing may differ, though, depending on the type of metal that you choose. As the gauge number increases, the material thickness decreases. The table below provides conversion to inches. 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