Boltless Shelving, Z-Beam, Overall Depth 24 in, Overall Height 84 in, Overall Width 42 in, Shelf Gauge 14 ga, Shelf Adjustment Increments 1 1/2 in, Steel, Steel, Steel, (20) Beams, (4) Posts, Includes Decking Yes, 900 lb, Whole Unit Load Capacity 4,500 lb, Starter, Open, SCS Indoor Advantage(R) Certified, Post Gauge 14 ga, Number of Shelves 5, Maximum Post Load Capacity 8,000 lb with Beams Evenly Spaced at 24 in, Powder Coated, Medium-Duty, Gray