Perforated sheet are sheets of steel, aluminum, stainless steel or specialty alloys that are punched with round, square or ornamental holes in a uniform pattern. Popular perforated sheet thickness ranges from 26 gauge through 1/4" plate (thicker plates are available on special order). Common  perforated sheet of hole sizes range from .020 to 1" and greater.
Perforated sheet Applications:
Architectural Accents
Filters
Screens
Strainers
Grills
Ventilation Covers