Merritt Side Mount Low Side Box, Diamond Plate Single, 18″ x 16″ x 48″, Gloss Black Model 710522-113 Toyota Tundra GEN-Y Weld-On Receiver Tube 2"

GEN-Y Weld-On Receiver Tube 2" x 2" x 5

Go Rhino Dominator Xtreme D6 Side Steps with Frame Mounting Bracket Kit Model FSD64516T

Weather Guard Heavy Duty Adjustable 3 Shelf Unit 44" X 36" X 16" Model 9343-3-03

That is the size you will want to order (and this rack will be about 6" tall to account for the 5" of the Magnum bed rail kit)

Merritt Side Mount Low Side Box, Diamond Plate Single, 18″ x 16″ x 48″, Gloss Black Model 710522-113 Toyota Tundra GEN-Y Weld-On Receiver Tube 2"Merritt Side Mount Low Side Box, Diamond Plate Single, 18 x 16 x 48, Gloss Black Model 710522 113 Low profile with a sleek, distinguished look, this design features commercial grade aluminum construction and faceted 45 degree corners for added strength. An automotive weather seal keeps equipment dry, while the anti theft extruded aluminum framing provides reliable security. Its also fully compatible with Merritts Foreman Series Work Truck Bed Cover,