This slide out truck bed tray has a 2200 lb capacity. 70 percent of the cargo tray length slides out. Heavy gauge powder-coated steel frame. Real plywood deck with a laminated surface for strength and durability.10 Full complement permanently sealed ball bearings provide dependable lasting support for the cargo you haul in your CargoGlide. Industrial 4" high extruded 6061-t6 thick aluminum side rails with a slot style infinitely adjustable tie-down track around all three sides, and includes 4 adjustable marine grade tie-down eyebolts to make securing cargo easy and versatile. Includes 8" high side extensions on the first four feet of the rails at the cab end, helps contain more cargo. Latches securely in position approximately every 12 inches. Quality solid steel latch system. No cables or plastic parts. This unit comes fully assembled for easy installation by either 2 people or an available national dealer installer. Total outside dimensions for this unit are 80" long and 49.25" Wide. The inside dimensions of the deck surface are 79" long and 48" wide. Total deck height is 4.75". This is a standard model and fits ford super-duty short bed - all cabs.