Aluminum expanded metal 3003 is made from one-piece construction metal that won't unravel, even over many years. It can be formed, cut, and welded to create grilles, shelves, enclosures, and baskets. The strands and bonds of the diamond-shaped trusses of expanded aluminum add strength and rigidity. When planning your project that requires the use of aluminum expanded sheet, don't forget to include our 1018 carbon steel U-edge trim for added safety and a polished look.