BOLTLESS WIDE SPAN STORAGE RACK WITH LAMINATE DECKING PROVIDES EXTRA SPACE FOR BULKY MATERIALS. BOLTLESS ASSEMBLY WITH SNAP TOGETHER COMPONENTS REQUIRES NO NUTS, BOLTS, CLIPS OR TOOLS. UPRIGHTS ARE A SUBSTANTIAL 1-1/2″ X 1-1/2″ X 14 GAUGE STEEL. ALL MODELS HAVE DOUBLE RIVETED HORIZONTAL BEAMS FOR MAXIMUM FRAME RIGIDITY. UNIT INCLUDES 3 SHELVES, ADJUSTABLE AT 1-1/2″ INCREMENTS. DECKING IS MADE OF STURDY 1/2″ THICK PARTICLEBOARD COVERED IN RUGGED WHITE LAMINATE. HEAVY-DUTY ROLL-FORMED STEEL FRAMING WITH CHIP RESISTANT BAKED ENAMEL FINISH. THIS 72″W MODEL WITH 900 LB. CAPACITY PER SHELF INCLUDES 1 CENTER DECK SUPPORT PER SHELF.