I have a custom built carrier I used to haul a quad off the rear of my fifth wheel toy hauler. No longer have the quad, so no longer need this. It measures 75" long (Inside of front rail to rear of carrier) and 42 7/8" wide (Inside of side rails). The side rails measure 7 1/2" high. The two receiver hitches are 2" receivers. The expanded metal flooring is welded to the frame. This thing is sturdy and built to last. Asking $275, paid $800 new. This can hold 1 full size quad or at least two dirt bikes, possibly 3. Located near San Vicente Golf Resort.