Abstract: Unique structural members for retail merchandising display, especially gondola shelving displays comprising an elongated framing extrusion being generally I-shaped in transverse profile to define two parallel longitudinal channels, an elongated linking/framing extrusion having a longitudinal channel along one side and on an other side a curved grasping arm parallel to a like curved hinging arm, and a merchandising display component support extrusion having a plurality of vertically aligned and stacked generally L-shaped longitudinal channels.