You may also like. Durable 5-Shelf Storage Rack Freestanding Shelves Organizer Unit 36″Wx16″Dx72H. Large 5 Tier Shelving Interlocking Organizer Unit Multipurpose Lightweight Black. 4-Shelf Garage Storage Rack Steel Freestanding Heavy Duty Shelves 36″Wx18″Dx60H. 5 Tier Shelf Heavy Duty Metal Rack Garage Steel Shelving Storage 36″ x 18″ x 72. 36″W x 60″H x 18D 5-Tier Steel Garage Shelving Storage Unit Heavy Duty Shelf US. The Muscle Rack heavy-duty 5-shelf steel shelving unit with its patented design and attractive black finish is the perfect storage solution for organizing bulky items in your basement, workshop, garage, business, or anywhere you need heavy-duty vertical storage. It features a stylish black finish, adjustable shelves and it can be assembled horizontally like a workbench or vertically as a shelf unit. Powder coat finish that resists abrasion, chipping, and corrosion for lasting strength and durability. Shelves are adjustable every 1.5 inches. Shelf capacity of 800 pounds based on evenly distributed loads. Boltless rivet-lock design for easy assembly. Can also be assembled horizontally as two 36 high units.