Common Sheet Metal Thickness

The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material.

Common sheet metal thickness.

Approximate thickness in decimal parts of an. A sheet metal gauge sometimes spelled gage indicates the standard thickness of sheet. At a relatively cheap price it makes a great fit for most engineering purposes. The thickness of sheet metal starts from 0 5 mm and goes up to 6 mm.

In most of the world sheet metal thickness is consistently specified in millimeters. Anything above that is a metal plate. The thin sheet metal is easy to form while still providing great strength. The gauge number 18 holds no relevance to the actual measurements.

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. The thinnest acceptable sheet metal for ductwork used in a single dwelling is 28 gage or 0 013 and 0 018 inches for galvanized and aluminum respectively. The manufacturers standard gage provides the thicknesses for standard steel galvanized steel and stainless steel. An aluminum sheet metal thickness refers to the thickness of an aluminium sheets a flat square or rectangle piece of aluminum material with a thickness of between 0 2mm and 500mm a width of 200mm some are even 50mm and above and more and a length of 16m or less.

There are several different gauge systems used today with specific gauge designations used for specific metal types. This measurement is for around duct smaller than 12 inches in diameter and a rectangular section no bigger than 8 inches. Approximate thickness in fractions of an inch.