The truck bed with extensible rails includes a front set of rails, a pair of side sets of rails, and a rear set of rails which selectively vertically translate from within the walls and tailgate defining a truck bed, such as those typically found in pickup trucks. The front set of rails and the pair of side sets of rails desirably vertically translate separately from the rear set of rails, and each set of rails can be selectively raised and lowered, under hydraulic power or the like, through actuation of a cabin-mounted control panel. The cabin-mounted control panel allows the vehicle operator to easily control the selective raising and lowering of the sets of rails through actuation of a hydraulic pump which is powered by the vehicle battery.