The Grainger Approved 21-3/4 in. L x 12 in. D x 48 in. H 5-Shelf Steel Shelving Unit in Black is a heavy duty steel shelving unit with 5 adjustable shelves. It has a weight capacity of 800 lbs per shelf and 4000 lbs total. The unit has a powder coat finish to help resist rust and corrosion. Assembly is required. Key features include 5 adjustable shelves, 800 lbs capacity per shelf, 4000 lbs total capacity, steel construction with powder coat finish, and 21-3/4"W x 12"D shelves. This industrial grade shelving unit provides sturdy and reliable storage space perfect for warehouses, garages, basements and more.