Abstract: An area separation wall having modified H-studs with a web which includes a center portion perpendicular to the modified H-stud flanges and two side portions which are adjoined to the flanges at an angle of about 60.degree.. Gypsum core boards with beveled edges are inserted into the two opposed channels of the modified H-studs with the edges of some of the core boards conforming to and abutting the side portions of the modified H-studs.

Abstract: Edge protective tape, on a package consisting of two predecorated wallboards, partially adhered to the wallboard back faces, forms pockets in non-adhered areas, into which wallboard mounting clips can be inserted.

Abstract: A method of mounting a gypsum wallboard in which the wallboard has a tear-resistant material partially adhered to the back face, with small slots in the material located at unadhered areas, through which small suspension clips are inserted. The clips include a hanger leg for hanging the clip on horizontal channels, which are part of the wall framing system.

Abstract: An extendible stud, consisting of two substantially identical Z-studs each of which has opposed flanges of substantially different widths and inwardly turned lips at the flange outer edges, and each Z-stud having a central raised ridge in its web, raised in a direction toward the wider flange, which two Z-studs are interconnected by the narrow flange of each being held within the channel formed by the wider flange of the other Z-stud along with its associated lip and web. Also the method of interconnecting two Z-studs and the method of erecting hollow partitions with the extendible stud.

Abstract: A gypsum wallboard suspension system in which the wallboard has a tear-resistant material partially adhered to the back face, with small slots in the material located at unadhered areas, through which small suspension clips are inserted. The clips include a hanger leg for hanging the clip on horizontal channels, which are part of the wall framing system.

Abstract: A gypsum wallboard suspension system in which the wallboard has a tear-resistant material partially adhered to the back face, with small slots in the material located at unadhered areas, through which small suspension clips are inserted. The clips include a hanger leg for hanging the clip on horizontal channels, which are part of the wall framing system.

Abstract: A notched metal channel having a small section of web removed and an adjacent short section of flange bent inwardly into the area of the removed section of web, and a hollow wall having such a notched channel forming part of the framing in the hollow of the wall, with elongate utilities in the wall extending substantially perpendicularly, relative to the channel, and extending between the channel notch and the adjacent wallboard forming the wall facing.

Abstract: A gypsum wallboard suspension system in which the wallboard has a tear-resistant material partially adhered to the back face, with small slots in the material located at unadhered areas, through which small suspension clips are inserted. The clips include a hanger leg for hanging the clip on horizontal channels, which are part of the wall framing system.

Abstract: A gypsum wallboard suspension system in which the wallboard has a tear-resistant material partially adhered to the back face, with small slots in the material located at unadhered areas, through which small suspension clips are inserted. The clips include a hanger leg for hanging the clip on horizontal channels, which are part of the wall framing system.

Abstract: An extendable stud having a stud body and a stud extender telescopically engaged with the bottom of the stud body, in which the stud extender bottom end has an interlocking slot, engageable with an upwardly extending enlarged elongate head on a floor track, which becomes locked to the enlarged head by raising the stud from an angled engaging position to a vertical locked position, whereat the stud body can be easily moved upwardly, into a ceiling channel, forming an elongated stud.

Abstract: An assembly of elements for providing a mounting surface for wall furniture includes a bracket which is attached to a wall framing member, at least one horizontally extending, inwardly opening, horizontally adjustable channel mounted on the bracket and preferably a second vertically extending, inwardly opening, vertically adjustable channel mounted on the first channel, providing a mounting surface which is both horizontally and vertically adjustable, to accommodate wall furniture having mounting means which are not spaced to coincide with the spacing of the wall framing members.

Abstract: An acoustical panel, for ceilings or for area separation, and the method of making such panels, wherein the panel consists essentially of a unitary frame consisting of four sides, each with an inwardly opening channel, an outwardly opening rebend and a downwardly extending flange, the panel further including a rigid gypsum board with edges filling the frame channel, a low density sound absorbing mat within the confines of the downwardly extending flanges, and a porous fabric facing concealing the acoustical mat and affixed to the frame by disposing the fabric edges in the outwardly opening rebends and crimping the rebends tightly closed.

Abstract: A hollow wall having a V-shaped rigid wire clip with two almost parallel legs engaged in holes in a metal element on a wallboard back face, with the clip head extending across the wallboard edge joint, to hold abutting wallboard edges coplanar, in which at least one of the clip legs has an intermediate bend engaging the hole periphery, whereby a thin tool, extended through the joint, can rotate the clip head around the intermediate bend, which is engaged with the hole periphery, which removes the clip head from behind one of the two abutting edges, for nondestructive removal of one of the wallboards of the wall.

Abstract: A clip for permitting attachment of wallboard to the open side of an outwardly opening C-shaped metal stud, including a clip body portion which engages three sides of the metal stud for increased stability, and a clip hanger portion which extends upwardly and inwardly through the stud open front side and has tabs which engage behind the flanges of the stud open front side.

Abstract: A hollow C-shaped vertical metal stud and a furniture bracket affixed thereto. The bracket includes a back plate which is disposed, at a rearwardly and a downwardly angle, within the confines of the stud, whereby weight of furniture on the bracket wedges the back plate between the stud front and back walls, preventing downward movement.

Abstract: A wallboard and stud unit formed of an elongate strip of foldable steel affixed to the wallboard back face, adapted to be folded outwardly away from the wallboard to function as a wall stud, in a hollow wall having a plurality of such units in back-to-back relationship.

Abstract: A wall in which at least one wall trim member has a face portion, spaced outwardly from the plane of the wallboard, and has an angled sidewall which, by its angled nature, tends to blend with both the wall trim face portion and the wallboard surface, which angled side wall is removed in short sections of this first wall trim member whereat a second wall trim member, with a face coplanar with the first wall trim member face portion, is abutted against the first wall trim member.

Abstract: A secondary vertical stud or furniture channel for mounting against one side of a plurality of vertically spaced upwardly opening horizontal channels in a hollow partition wall framework, with slots in the secondary stud for engaging the upwardly extending flanges of the horizontal channels. The secondary studs are able to be freely located at any position along the length of the wall, for supporting wall furniture where desired, for locating a perpendicularly extending second partition wall wherever desired, or for receiving fasteners or adding stability to the wall framework wherever desired, by very simple installation procedures.

Abstract: A wall framing system including U-shaped metal studs in which there are two web portions with a plurality of aligned holes in the two webs, short sections of channel are disposed through said aligned holes for supporting wallboard thereon, and means are provided near the ends of the short channel for maintaining the ends of the channels in a fixed position relative to the wallboard supported thereon.

Abstract: A ceiling panel, in a drop ceiling, formed from a relatively large ceiling board and at least one reinforcing metal channel affixed to the board top side, in which the channel has at least one opening shaped to form a tongue. The tongue extends into an opening on a metal plate which is mechanically affixed to the top of the board, such as by a plurality of tangs which penetrate the back of the board.