Complete Rack and Deck System of WIREWAY/HUSKY Invincible Pallet Racks features rugged, high-strength steel construction that allows 2" beam adjustability. One-piece tubular beams feature a continuous seam weld. Welded upright frames. A minimum of 2 pairs of beams are required for each storage bay. Safety certified 55,000 lbs. psi minimum yield high-strength steel used throughout. Upright frames include foot plates. Complete starters include 2 upright frames, 4 solid beams, and 4 wire decks while the add-ons include 1 upright frame, 4 solid beams, and 4 wire decks. Heavy-duty foot plates are available for seismic requirements. Patented Bowlock® safety clip securely attaches beam to upright. Polyurethane paint finish on upright frames and beams. Color: orange beams and green upright frames. Made in USA.NOTE: 144" units include (3) upper levels, (6) beams, and (6) wire decks.