Utilization of event drapery for visual aids, and similar purposes is facilitated by insertion of an intermediate support bar between vertically disposed and relatively spaced posts supported at their bottoms by base plates and secured at their tops by an upper support bar. A clamp, positionable and securable, at any one of a relatively infinite number of positions along each post, functions to secure support bar receivers in place which, in turn, receive respective ends of the intermediate support bar to facilitate disposition of the visual aid and further event drapery. A base plate supports a pair of vertical posts and facilitates positioning two sets of drapes back to back.