Flatbed Gooseneck Hitch Trap Door

4.2in. high outside perimeter, 3in. high x 2.5in. wide I beam subfloor support (12in. on center), 4in. x 2in. wide long mounting sills welded on chassis cabs, and adjustable from 38in. to 42in. on bed delete, 1/2in. high engineered extruded interlocking tongue and groove aluminum decking, rub rails with stake pockets, 1in. x 3in. tubular and smooth headboard, 11in. high tailboard with recessed license plate bezel, prewired LED lighting, subfloor frame is gooseneck trap door ready. Made in USA.