Aluminum Sheet Metal at LowesSteelworks 24-In X 36-In AluminumHillman 24-In X 36-In AluminumHillman 12-In X 24-In AluminumM-D 24-In X 3-Ft AluminumM-D 24-In X 3-Ft Aluminum SheetHillman 24-In X 24-In AluminumM-D 24-In X 3-Ft AluminumHillman 12-In X 24-In AluminumHillman 6-In X 18-In Aluminum Solid
Although aluminum sheet metal is most common, you can also find other finishes like brass, copper and galvanized