Organize and improve access to bar ends, saw drops, pipe, and other long materials with this high-density storage unit. All-welded uprights are supported by a heavy-duty upright frame and 1/4" steel bar grid. Uprights are bolted together and should be bolted to the floor for stability. (66) 5 1/2" sq. openings; 500-lb. capacity per opening. 41 1/2"Wx74 3/4"H overall. Ships unassembled. Gray enamel finish. FOB IL, NE.