This invention relates to doors having internal blocking components that reduce or eliminate telegraphing of the outer surface of the door facings. In particular, the invention relates to steel-edge steel doors that have internal solid wood blocks that have one or more integral cantilever beams formed into the blocks to interact with the adjoined oppositely arranged door facings in order to eliminate visually apparent door telegraphing. The blocks are modified to contain notches formed therein to form the cantilever beams.

A panel assembly includes a frame panel including a front surface, an upper surface, a side surface, and a rear surface and is formed as a single sheet of a metal plate, and a corner member disposed in a gap formed between the upper surface of the frame panel and the side surface of the frame panel, wherein the corner member includes: an insertion member inserted into the gap to fill the gap, and a fixing member integrally formed with the insertion member and coupled to the rear surface of the frame panel to fix the corner member to the frame panel.

A passive ventilation panel and system, in particular for use in doors, ceilings, walls and partitions enables an exchange of supply and return air for at least one room or a room, without the need for additional ventilation equipment, such as ducts, and without the needs to install wall openings or grills for the supply and exhaust air in the space.

The invention provides a glass door apparatus with a right and a left glass door leaf (10, 100) and functional end caps (40a, 40b, 240a, 240b), which respectively have a protrusion (52a, 52b, 252a, 252b), which, with respect to a lateral front face of the functional end cap protrudes laterally outwards in a manner at least substantially parallel to a pane face of a glass pane of one glass door leaf as well as away from said glass pane, and/or a cavity (54a, 54b, 254a, 254b) which, with respect to said lateral front face, protrudes laterally inwards in a manner is at least substantially parallel to said pane face and towards said glass pane and which, in the opposite direction, opens laterally outwardly, and wherein, in the closed state of glass door apparatus, the protrusion and/or the cavity is/are overlapped with a complementary counterpiece of the other glass door leaf.

A method to form a garage door window assembly, the method including providing (N) first trim members and (N) second trim members, wherein (N) is 3 or greater, releaseably attaching an (i)th first trim member to an (i)th second trim member to form an (i)th trim assembly, where (i) is 1 to (N). Releaseably affixing a (j)th trim assembly to a (j+1)th trim assembly, where (j) is 1 to (N1).

A frame door with a split connection frame is provided, including a split connection frame. The split connection frame includes a first connection frame which is provided in a frame door and a second connection frame which is provided in an other frame door. The first connection frame is provided with a slide rail groove, the second frame is provided with a slide plate which engages with the slide rail groove. The slide rail groove has a C-shaped cross section so as to wrap edges of the slide plate.

Building systems including a frame with a horizontal member from which first and second vertical bars downwardly extend and a panel attached to the frame. The building systems include at least one of an integrated fastener cover that is moveable to a closed position that covers a portion of a fastener, a gusset assembly with a junction cover positioned at a corner junction between two adjacent portions of a panel, and hinge assemblies that reduce the sagging of a panel, such as a door.

A core for a fire rated door includes a fire resistant center panel and an extruded fire resistant border. The fire resistant center panel has a bottom, a top, a first side, a second side, a first end and a second end. The fire resistant center panel is made of a first fire resistant material. The extruded fire resistant border is attached to the first side, the second side, the first end and the second end of the fire resistant center panel. The extruded fire resistant border is made of a second fire resistant material having a higher density than the first fire resistant material.

A modular channel for a door including an elongated channel forming at least a portion of an internal frame for the door. The elongated channel has opposing sides and a base member extending between one edge of each side. The modular channel includes a pair of parallel slotted openings along the base member and a channel adapter including a tabs corresponding with the pair of slotted openings. The tabs include a locking protrusion extending from tab. The tabs slidably engage the slotted openings and the locking protrusions engage the slotted openings when the tabs are urged fully into the slotted opening. The slotted openings may be positioned parallel with the elongated channel length and the elongated channel may include at least one transverse slot perpendicular to the slotted openings. The channel adapter may include a curved locking tongue disposed perpendicular to the tabs and engagable with the transverse slot.

A composite product includes gypsum in an amount of 70 to 90% by weight, fibers in an amount of 1.5 to 26% by weight substantially homogeneously distributed through the composite, and a rheology-modifying agent in an amount of 0.5 to 6% by weight. The composite is caused or allowed to cure to form a cured composite. The cured composite is a fire resistant component used in a fire-rated door core, a fire-rated door or a fire-rated building panel. The fire resistant component may include a building panel, a door panel, a door core, a door rail, a door stile, a door lock block, a door border, or a door insert.