HEAVY DUTY SHELVING 48″W X 18″D X 60″H WOOD DECK 4 SHELVES BOLTLESS SHELVING 225 LB. SHELF CAPACITY – 4-SHELF – WOOD DECK FAST ASSEMBLY — RECONFIGURES WITHOUT TOOLS EXPECT TOP PERFORMANCE WITH RUGGED STEEL SHELVING THAT FEATURES SUPER-STRONG ROLL-FORMED STEEL FRAMING WITH POSITIVE INTERLOCKING BEAM-AND-POST CONNECTIONS FOR QUICK ASSEMBLY. TOP AND BOTTOM SHELF LEVELS ALSO INCLUDE DOUBLE-RIVET SUPPORT FOR ADDED RIGIDITY. THIS UNIT INCLUDES SHELF SUPPORTS AND 5/8″ PARTICLEBOARD DECKING. LEVELS ADJUST AT 1-1/2″ INCREMENTS AND PERMIT 4-WAY ACCESS. 14-GAUGE STEEL UPRIGHTS MEASURE 2-1/4″ X 1-1/2″. DURABLE GRAY BAKED ENAMEL. SHELVING UNITS OPTIONS INCLUDE: EXTRA HEAVY DUTY WITH 1200-1500 LB. SHELF CAPACITY AND DOUBLE-RIVET SUPPORT BEAMS AT ALL LEVELS FOR ADDED RIGIDITY AND WIRE OR NO DECK (SUPPLY YOUR OWN).