Abstract: A table extensible by turning over its side boards, constituted by a horizontal plane, having peripheral parts with upper side boards and lower side boards shaped as circle segments and a central part enclosed thereby. The central part is able to rotate on a base and is vertically movable relative thereto by means of cam profiles, which are fastened to the central part between the top surface of the lower side boards and of the upper side boards, which are fastened to the central part. The lower side boards are joined to a frame, bearing down on said base whilst the upper side boards are hinged to the upper side boards to be turned over outwardly.