Two extra shelves are designed to expand Lorell Industrial Wire Shelving Starter Kits (sold separately) and organize your storage areas. Easy collar-and-sleeve assembly requires no tools. Each shelf supports up to 1,000 lb. evenly distributed and adjusts in 1in. increments. Shelving is made of steel with a chrome powder-coat finish, 10-gauge shelf surface, 3-gauge frame, and 6-gauge wave pattern. Lorell Indust Wire Shelving Starter Extra Shelves - 36in. Width x 18in. Depth - Steel - Chrome is one of many Wire Shelving available through Office Depot. Made by Lorell.