4 Shelf, Commercial Duty Boltless Shelving Add On, 48"Wx18"Dx96"H, Laminate Deck

Easy set-up with snap-in components. No nuts, bolts, or clips required. Make expansion easy and join units with more stability and less construction than bolting 2 starter units together. Sturdy roll-formed steel framing provides maximum support. Top and bottom shelves use Double Rivet button stud construction to lock perimeter beams into corner post forming a structurally secure joint, eliminating back and side sway. Center shelf uses Single Rivet beams. Each add on unit includes rugged 14 ga steel T Posts that are punched on 1 1/2" centers, double riveted horizontal beams, and single rivet horizontal beams that adjust vertically on 1 1/2" increments. Chip resistant Gray baked enamel finish. Stain resistant, easy-to-clean melamine surface decking. Measures 1/2" thick with pre-cut square edging.