Starter kit is designed to provide the essentials for industrial wire shelving so you can expand and organize your storage areas. Kit includes four 48 wide x 18 deep shelves and four posts. Easy collar-and-sleeve assembly requires no tools. Each shelf adjusts in 1 increments. Shelving is made of steel with a powder-coat finish, 10-gauge shelf surface, 3-gauge frame, and 6-gauge wave pattern. Weight capacity is 1, 000 lb. evenly distributed. Units can be expanded with use of add-on units and extra shelves. Add-on unit (sold separately) includes four shelves and two posts. Packaged Quantity: 1 Each Product Type: Shelf Total Number of Shelves: 4 Finishing: Powder Coated Load Capacity: 4000 lb. Color: Black Material: Steel Height (in.): 72 Width (in.): 48 Depth (in.): 18 Assembly Required: Yes Environmentally friendly: Yes Country of Origin: China Limited Warranty: 5 Year