US Patent 9180745 Pickup truck with provisions for gooseneck hitch

A pickup is adapted to facilitate installation of a gooseneck hitch by installation of a hitch frame between the frame rails under the pickup bed box and provision of a hole in the pickup bed floor over the hitch frame. The bead pattern is designed to add rigidity in the vicinity of the hole. The beads on the left and the right of the hole are not interrupted in the vicinity of the hole. Instead, they are narrowed such that the separation between the beads is greater than the hole diameter in the vicinity of the hole while it is less than the diameter of the hole in other locations.