Abstract: A furniture article such as a bookshelf unit has a pair of back panels which are arranged edge to edge in extension between upright side members. The outer edges of the panels are received in grooves formed in the sides. The combined width of the panels is greater than the distance between the side members so that the panels initially overlap at their inner edges. The panels are displaced to position their inner edges in butting engagement and are then snapped into a common plane with the edges remaining butted together to retain the panels under compression in the assembled condition.