Metal Gauges Below you’ll find the info you need with our sheet steel, stainless steel and aluminum sheet metal charts. FREE Shipping on orders over $25 shipped by Amazon. Handy gauge shows all sizes of sheet metal and wire from thin 36 gauge to thick O gauge. Use the chart below to convert standard gauge numbers in decimals of an inch for sheet steel, aluminum and stainless steel. Sheet Metal Gauge 229895, Wire/Metal Sheet Thickness Gauge Size Inspection Tool Welding Gauge. Get it as soon as Wed, Dec 2. Decimal equivalent shown on reverse side. Tempered for long life. Sheet Metal Knowledge Menu Sheet Metal Manufacturing and Services. 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. Takes guess work out of measuring. $8.75 $ 8. Contents. Looking for STARRETT Sheet Metal Thickness Gauge, Gauge Standard US Sheet Metal, Range - Gauge #36 to #0 (2ZVD8)? 4.5 out of 5 stars 53. Easy online ordering for the ones who get it done along with 24/7 customer service, free technical support & more. Only 6 left in stock - order soon. The equivalent thicknesses differ for each gauge size standard, which were developed based on the weight of the sheet for a given material. Grainger's got your back. 75. Price $91.80. Made of heavy gauge stainless steel. Measures from 0-36 gauge sheet metal and wire.