Pallet Rack Add-On Unit, Beam Height 4 3/8 in, Beam Step Depth 3/4 in, Beam Step Height 1 1/2 in, Step Beam Beam Style, 16 ga, Footplate Depth 4 in, Footplate Width 4 1/4 in, Overall Depth 36 in, Overall Height 8 ft, Overall Width 123 in, Load Capacity per Shelf 4,190 lb, Add-On Pallet Rack Configuration, 14 ga, Upright Load Capacity @ 36 in 21,450 lb, Yes, Number of Levels 2, Whole Unit Load Capacity 8,124 lb, Usable Width 10 ft, RMI, Green/Orange, Teardrop Connection Type