E-Z-RECT® Wide-Span Boltless Racking features simple, interlocking assembly without nuts, bolts, or rivets. Shelves consist of 2 beams, 5/8" particleboard decking, and required tie bars. Overall capacity is 10,000 lbs. Includes 4 shelves that adjust on 2" centers. Starters are complete stand-alone units while add-ons attach to starters or other add-ons. Gray electrostatic baked enamel finish.