article display units are formed by assembling together a plurality of elongated members to form a panel containing slots on at least one of the surfaces . the elongated members are contoured to interlock with one another via integral lug elements and complimentary leg elements thereby creating panels of any desired surface dimensions . the panels may be formed as free - standing or wall - mounted units . brackets or other article support devices are hooked into the panel slots at desired locations to support and display merchandise or the like .