Building panels provided with a locking system for vertical and horizontal locking of a first edge and a second edge of adjacent panels. The locking system includes a displaceable tongue at least partly arranged in a displacement groove, a tongue groove, a cavity provided in a strip at the first edge, and a protrusion extending downwards at the second edge. The displaceable tongue is arranged to be displaced at least partly into the tongue groove during locking, and wherein the protrusion is arranged to be located in least a portion of the cavity when the panels are locked vertically and horizontally.

Building panels provided with a locking system for vertical and horizontal locking of a first edge and a second edge of adjacent panels. The locking system includes a displaceable tongue at least partly arranged in a displacement groove, a tongue groove, a cavity provided in a strip at the first edge, and a protrusion extending downwards at the second edge. The displaceable tongue is arranged to be displaced at least partly into the tongue groove during locking, and wherein the protrusion is arranged to be located in least a portion of the cavity when the panels are locked vertically and horizontally.

A set of structurally insulated panels and method of building construction, the set of panels having an indexing system that allows for any one panel to be easily attached to any other panel via indexing pins placed in pre-arranged openings. The indexing system enables essentially any number of panels to be assembled in essentially any reasonable manner to construct a building structure.

A set of structurally insulated panels and method of building construction, the set of panels having an indexing system that allows for any one panel to be easily attached to any other panel via indexing pins placed in pre-arranged openings. The indexing system enables essentially any number of panels to be assembled in essentially any reasonable manner to construct a building structure.

Wall system for composing a fiat wall (1), in particular a wall, floor, ceiling, roof or the like, characterised in that the wail system is composed of wooden beams (2) which extend parallel to each other lengthways and the side edges (3) of which are mounted opposite each other breadthways by means of anchoring elements (8) which are mounted in or on the beams (2) and which in mounted condition of the wall (1) are kept apart at a fixed defined distance (L) by means of spacers (12) which extend through passages (7) in the beams (2), said passages (7) extending and connecting breadthways (B) of the beams (2) and in each other's extension, whereby the anchoring elements (8) are anchored relative to the passages (7) in an axial and radial direction as well as against rotating around the axial passage direction (X-X′) of the passages (7).

Wall system for composing a fiat wall (1), in particular a wall, floor, ceiling, roof or the like, characterised in that the wail system is composed of wooden beams (2) which extend parallel to each other lengthways and the side edges (3) of which are mounted opposite each other breadthways by means of anchoring elements (8) which are mounted in or on the beams (2) and which in mounted condition of the wall (1) are kept apart at a fixed defined distance (L) by means of spacers (12) which extend through passages (7) in the beams (2), said passages (7) extending and connecting breadthways (B) of the beams (2) and in each other's extension, whereby the anchoring elements (8) are anchored relative to the passages (7) in an axial and radial direction as well as against rotating around the axial passage direction (X-X′) of the passages (7).

Described herein is a drywall apparatus and method. The apparatus includes a finishing drywall liner, a framing drywall liner, a first gypsum-containing segment between the finishing drywall liner and the framing drywall liner, and a second gypsum-containing segment between the finishing drywall liner and the framing drywall liner. The first segment and the second segment are connected by a hinge formed from the finishing drywall liner and the framing drywall liner to allow an angle between the first segment and the second segment to vary.

Waterproof engineered floor and wall planks have a veneer layer bonded with a plastic composite core, and an underlayer, preferably an underlayer of cork.

Waterproof engineered floor and wall planks have a veneer layer bonded with a plastic composite core, and an underlayer, preferably an underlayer of cork.

A drywall system is provided including a first drywall panel and a second drywall panel connected to the first drywall panel via a main hinge. A first drywall flap connected to the first drywall panel via a first hinge, and a second drywall flap connected to the second drywall panel via a second hinge. The first drywall panel, the second drywall panel, the first drywall flap and the second drywall flap can hinge to assume at least one corner configuration in which the first and second flaps lie on a first plane, the first drywall panel lies on a second plane and the second drywall panel lies on a third plane, such that the first plane, the second plane and the third plane are mutually orthogonal. A coating can be provided on an external surface of the framing drywall liner for strengthening the groove which, in embodiments can be polyester strip that extends over portions of the first and second gypsum-containing segments on either side of the of the groove.