This storage 4-shelf steel shelving unit is a versatile and functional piece for homes, offices, warehouses, and more. It is made of heavy-duty steel and built for strength and durability. This heavy-duty steel shelving unit has five shelves that provide efficient storage space. It can hold various items, large and small, and has a weight capacity of up to 600 lbs per tier when evenly distributed. The shelves of this five-tier shelving unit can be adjusted every 1-1/2" to allow for extra space as needed. The flexible design can be assembled vertically for traditional shelf space or horizontally for a workbench-style piece.