Abstract: A merchandise display panel having a rear wall with parallel T-shaped ribs on one or both sides forming alternating slats and grooves for receiving merchandise hooks, shelf brackets, earring cards and the like, each groove including an upper locating abutment rib extending inwardly a preselected distance from the bottom of the slat above the groove and a lower locating abutment rib extending outwardly to a second preselected distance from the top of the slat below the groove. The preferred embodiments are extruded in sections of thin-walled aluminum with angles providing high strength, and with complementary extruded coupling elements along the upper and lower edges of each section to be clamped tightly together, and with an extruded fastener-receiving channel in each section for attachment of an optional frame. Alternative embodiments are one-piece cold-rolled sheet metal panels with bends providing functionally similar slats, grooves and upper and lower abutment ribs.