The thickness of a sheet of 16-gauge steel is approximately 0.05928 to 0.065 inches. The thickness varies depending on the type of steel and the gauge standard. When measuring the thickness for galvanized, standard and stainless steel, the Manufacturers' Standard Gage is used in the United States.
The American Wire Gage standard, also known as the Brown and Sharpe Gage standard, is used when measuring the thickness of some other metals, such as brass and aluminum. The lower the gauge rating number, the thicker the sheet of metal. In contrast, the higher the gauge measurement, the thinner the metal thickness.