A panel truck provides a material carrier made up of a fixed frame clamped the a rain gutter of the truck and a movable frame that is able to be drawn toward the fixed frame to clamp panels between the frames. The fixed frame is further secured to the truck by a clamp leg that may be drawn toward an interior panel of the truck so as to apply clamping action between the fixed frame against the exterior panel of the truck and the clamp leg against the interior panel. Therefore, the material carrier is easily mounted on the truck and easily removed therefrom without any modification to the truck.