Abstract: A framing system is disclosed for demountable walls or the like in which the frame member provides a substantially continuous backing surface to engage the back sides of panels along abutting edges thereof. Such frame member is provided with separate locking means at spaced intervals along the backup surface having locking portions which project into the edges of abutting panels to retain the panels against the backing surface. Such locking means are proportioned to fit into kerfs formed in the edges of the panel and are shaped to provide a camming action to press the back sides of the panel into snug engagement with the backup surface. The framing members may be, for example, furring strips formed of metal to secure the wall to a foreign wall, or a stud providing opposed backup surfaces for use in a wall providing panels along both sides thereof.