Patent attributes
Multiple rear sections can be pivotably coupled and foldable between a deployed arrangement in which a forward section and the rear sections are generally planar, and a storage arrangement in which the rear sections are folded into a stack. The forward section can be mounted to the cargo box and pivotably coupled to an adjacent rear section to support the stack in an upward angled position. The forward section can be formed of an extruded panel having an upper wall member and a lower wall member spaced apart from the upper wall member. The lower wall member can at least partially define a channel. An internal rib can extend between the upper wall member and the lower wall member.