Muscle Rack UR184872-R 5-Shelf Steel Shelving Unit, 48" Width x 72" Height x 18" Length, Red Wire shelves adjust in 1.5" increments. Weight Capacity: 4000 Pounds Holds up to 4,000 lb total weight or 800 lb on each individual shelf Constructed from industrial strength steel that assembles in minutes with minimal effort and no nuts or bolts Z-beam design for strength