Abstract: A drywall or sheet rock edge clip device that can hold joints of drywall together at the apex of vaulted ceilings or at any other drywall seam at any angle. The device can include tabs and a head or cross member coupled by a stem that fits through the seam or joint and pulls and holds it together. A wire-tie version of the invention can have serrations along the stem and pull up and tighten like a wire-tie. The unused tail section can be broken off by bending it from side to side.

Abstract: A non-slip, nocoat drywall finishing system for finishing inside and outside corners of any angle, the finishing system being a pre-formed, continuously extruded trim piece comprising a semi-rigid member that can be relatively thick in the center and tapers laterally to a thin edge. An outer finishing layer of fibrous material that directly receives paint or texture. A pattern of protrusions, ridges, or grooves on the inner surface of the semi-rigid member to avoid the need for an inner material layer. To install one of the pieces, it is selected from stock and cut to length. A flat coat of mud is applied to both sides of an exterior or interior angle, and the trim piece is placed over the mud and smoothed into place. Once, the piece is in place, the edges are feathered once with a small amount of mud and a wide blade. At that point the corner is complete except for drying.