Abstract: The present invention comprises a plurality of vertical support members and horizontal members readily assembled and secured on a pick-up truck bed or the like, with or without a canopy on the truck bed, forming a load-supporting rack outside the space typically occupied by a conventional pick-up canopy. Adjustable members provide for height adjustment and for adaptation of the load mounting area to match the dimensions of the load. Rack support members are inserted vertically into base members that are rigidly mounted in typical stake holes characteristically provided on the rim of a truck bed, obviating the need to weld to the truck or to drill bolt holes in the truck. The base apertures for receiving the vertical support members extend from the rim of the truck bed outside the dimension of a typical truck canopy. The rack is also specifically designed for facile assembly and disassembly.