Abstract: A frame system for a door or window is constituted by at least one fixed frame (1) and at least one movable sash (3) mounted in the fixed frame and having a central post (5) and a handle (4). The locking system (6) for the sash (3) is integrated in the aluminum profiles of the fixed frame (1). The sash (3) has no visible aluminum profiles next to the floor and next to the ceiling. The thickness of the visible aluminum of the post and of the handle ranges from 1 mm to 5 mm and the central post (5) and the handle (4) can be mounted to either side of the movable sash without modification.