1500 lb capacity. 70% of the Cargo Tray Length Slides Out. Sturdy steel frame construction. Real plywood deck with a TPO rubber laminated surface for strength and durability. 6 Industrial Cam Follower Needle and Ball Bearings provide Dependable Lasting support for the Cargo You Haul in Your CargoGlide. Industrial 4 in. high extruded 6061-T6 Thick Aluminum Side Rails with integrated Full Perimeter Tie-Down Tracks and 4 Infinitely Adjustable Eyebolt Tie-Downs to make securing cargo easy and versatile.