Abstract: A roll bar is disclosed herein for use as a decorative unit for installation in a truck bed having a pair of substantially U-shaped members composed of tubular stock anchored at their ends to the truck bed arched upwardly with their cross pieces joined together by a pair of clamping elements in spaced-apart relationship. Each member is comprised of several lengths of preformed segments that are joined in end-to-end relationship by inserts coupling adjacent ends together. The inserts may take the form of split cylinders, tapered portions, shaped tube ends, beaded solid plugs and the like. Clamps may be employed where applicable and angled mounting brackets are optional for use where the mounting surface is uneven or irregular.