Abstract: An integrally extruded longitudinally extending panel which can be connected to other such panels to provide an upright display surface having channels therein comprises a planar panel portion, channel means at one side of the panel portion and comprising first connecting means, and second connecting means at the other side of the panel portion; the first and second connecting means of adjacent panels being interconnectable to provide a display surface having a channel therein with an overhanging lip for retaining in the channel the foot of a display means such as a bracket, shelf, hanger, light fitting, etc. The connection between the panels is arranged to be concealed by overlap in the region of the channel.