83.86" Steel Storage Shelves, Heavy Duty 5-Layer Adjustable Rack, Waterproof & Moistureproof Garage T3625P4978131. Heavy Duty Load Bearing Capacity. Built with premium thickened steel, this 5 tier shelving unit boasts a total load capacity of 4000 lbs (800 lbs per shelf). It stably holds heavy items like toolboxes, industrial equipment, and bulk storage goods, ideal for garage and warehouse use. 2. Fully Adjustable Shelves. All 5 shelves are height adjustable to create flexible storage space. You can easily customize the layout to fit items of different sizes,