BOLTLESS SHELVING 300 LB. SHELF CAPACITY – 4-SHELF – NO 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 (PROVIDE YOUR OWN DECKING). LEVELS ADJUST AT 1-1/2″ INCREMENTS AND PERMIT 4-WAY ACCESS. 14-GAUGE STEEL UPRIGHTS MEASURE 1-1/2″ 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 WOOD DECK. .