Sheet metal is a metal that has been rolled into sheet. Sheet metal thickness varies depending on the application. The sheet metal thickness generally ranges from .03 in (0.75 mm) to .25 in (6 mm). Sheet metal that is thicker than .25 in (6 mm) is called plate.
Sheet metal can be made from most metals, but the common materials are carbon steel, aluminum, stainless steel, copper, brass and some plastic.
Sheet metal can be cut and bent into a variety of different shapes, with common applications such as kitchen appliances, automobile bodies, and electronics equipment.