Expanded metal is a form of metal by shearing a metal Stretches, leaving diamond-shaped voids surrounded by interlinked bars of the metal Expanded metal is often used for architectural details and finds use in security applicatetions such as in the walls of a Sensitive Compartmented Information Facility because, in heavier grades, it is difficult to breach withour heavy cutting equipment or explosives

Expanded metals, are used architectural panels, stairs, gratings, fences, barriers, window covers cages etc. Expanded metals are finished by pant, hot dip galvanized anodizing etc.