A goods showcase capable of arbitrarily varying depths of respective shelves is herein described. The shelf has struts with a plurality of engaging holes provided on their sides as aligned in columns, and shelf support members which each have a horizontal shelf plate support flange extending from a lower edge of a laterally long L-shaped vertical side plate provided with engaging pieces to be engaged in the engaging holes in the shelf strut and also have a plurality of engaging vertical claws erected from a free edge of the horizontal flange at a predetermined interval. The shelf plates each have a reinforcement crosspiece disposed in the widthwise direction on its back surface, and this crosspiece is provided with an engaging section to which is engage and disengage the engaging claws.
A framework for supporting a horizontal arm at one of a plurality of locations from a vertically extending member having a plurality of vertically separated openings, each of which can be aligned with a similar opening in one end of the arm. A pair of triangular section cotter pins extend through the aligned openings with the hypotenuses in contact and the other two dimensions being less than the corresponding opening dimension so that after pin insertion, downward movement of the arm, misaligning the opening, locks the arm to the member.
