Abstract: A frame for supporting a plurality of interchangeable units of office furniture. The frame both supports the furniture in an upright direction, prevents the furniture from sliding in a horizontal direction and is concealed from view when the furniture is mounted on it. The arrangement of the furniture can be varied by interchanging the positions of the various separate units of furniture carried along the frame. The frame itself can also be advantageously utilized to carry additional equipment pivotably mounted thereon and to provide means for storing such additional equipment when not in use. Because the frame rigidifies the furniture structure mounted thereon, lightweight and inexpensive furniture can be used.