The Muscle Rack heavy-duty 5-shelf steel shelving unit with its patented Z-Beam design and attractive silver finish is the perfect storage solution for organizing bulky items in your basement, workshop, garage, business or anywhere you need heavy-duty vertical storage. Its sturdy frame has a powder coat finish that resists abrasion, chipping and corrosion for lasting strength and durability. This versatile shelving unit can store a variety of items, large or small, with the convenience of shelves that are adjustable every 1.5 inches. Heavy items are no problem; each sturdy particleboard shelf holds up to 800 pounds of evenly distributed weight. The rack's modular design allows the unit to be assembled vertically as a single shelving unit or horizontally for a 2-piece workbench style unit. The rack's boltless design and included post couplers allow you to assemble it in just minutes with no nuts or bolts.