What other item of stock can be measured with a sheet metal gage?

In addition to sheet metal, a sheet metal gauge can also be used to measure the thickness of other materials such as plastic sheets and non-ferrous metals like aluminum and copper. These materials can come in various thicknesses, and the gauge helps ensure proper specifications for manufacturing and fabrication processes. Additionally, some gauges may be used for measuring the thickness of certain types of wood or composite materials in specific applications.