BOLTLESS SHELVING EXTRA HEAVY DUTY (1200 LB. CAP.) – 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. ALL SHELF LEVELS ALSO INCLUDE DOUBLE-RIVET SUPPORT FOR ADDED RIGIDITY. 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. WIRE AND WOOD DECK OPTIONS AVAILABLE (SOLD SEPARATELY). BOLTLESS SHELVING INSTRUCTIONS