A door assembly for an electromagnetic shielded enclosure includes a metal door frame for defining a passageway into the enclosure and a door for selectively enclosing the passageway. The door includes a door leaf pivotally coupled to the frame. A set of radio frequency (RF) seals is connected to the exposed peripheral edge of a conductive plate in the door leaf. Each RF seal includes a resilient movable finger which overlies a U-shaped bracket mounted along the outer edge of the door leaf. A plurality of air cylinders is mounted within each bracket and is designed to urge the resilient finger of each RF seal into contact with the door frame.

An access door may include a core, stiles on opposites sides of the core, an elongated panel extending transversely between the stiles, wherein a major face of the door between the stiles defines one or more recessed pockets along a top edge of the elongated panel between and the stiles and the elongated panel, and a notch formed into the top edge of the elongated panel and extending along at least one of the recessed pockets, the notch extending downwardly into the top edge of the elongated panel so as to form a lip in the top edge of the elongated panel with the notch positioned between the lip and the one or more recessed pockets, the lip and the notch of the elongated panel together forming an accessory rail, wherein the accessory rail is configured to receive and support a complementarily configured hanger base of an accessory hanger.

A method for manufacturing a three-dimensionally deformed plate made of a wood fiber material comprises providing a prefabricated, flat wood fiber material plate as the original plate, preheating the original plate in sections, wetting the preheated section of the original plate with an atomized liquid mixture of water and a separating agent, introducing a section of the original plate that is preheated and wetted with a liquid mixture of water and a separating agent between two rollers of a molding station, wherein the rollers respectively provide a corrugated profile in the peripheral direction of the external surface, such that the original plate is being deformed in sections into a plate with a wave shape, wherein rollers are being used, the respective profiling of which has half-waves which follow one another in the peripheral direction and which at least partially have a different extension in the peripheral direction.

A fire resistant panel for a fire door, the panel including a frame providing a rigid bordering structure for the panel and having an inner face, an outer face, an inner side and an outer side, the frame surrounding an inner space; and a core disposed within the inner space, the core having a peripheral edge adjacent the inner side of the frame.

A door has a core that includes a first major surface having one or more first recesses, a second major surface opposite to the first major surface, and fire retardant material such as intumescent material applied to the first recesses and no more than about 20 percent by surface area of a remainder of the first major surface excluding the first recesses. A door skin includes an interior surface, an exterior surface, at least one contoured panel portion establishing a protrusion extending on the interior surface and an opposite depression extending into the exterior surface, and fire retardant material such as intumescent material applied to at least one of the protrusion or the depression and no more than about 20 percent by surface area of the remainders of the interior surface excluding the protrusion and the exterior surface excluding the depression.

A method of making a door involves providing a first door facing including a first raised region and a first panel recessed from the first raised region by a first dimension, and securing a first core insert having a thickness equal to the first dimension to the first raised region. A second door facing including a second raised region and a second panel recessed from the second raised region by a second dimension is provided. A second core insert having a thickness equal to the second dimension is secured to the second raised region. A central core component is secured to the first panel and the first core insert after the first core insert has been secured to the first raised region. The second panel and the second core insert are secured to the central core component after the second core insert has been secured to the second raised region.

Composite door systems are provided for use in a protective barrier structure. The composite door systems provide for quick assembly, safety, security, and resistance to physical impacts or threats. The composite door systems may include a shell and a core that can be factory completed or finished on site. The shell may be shipped to the assembly location of the barrier structure, and the core may be formed on site by pouring liquid fill material into a cavity of the shell, which is allowed to cure into a solid fill material. Hardware housings may be operatively coupled to the shell that are made to receive door hardware but resist the liquid full material from filling the hardware housings. The shell, core, and/or hardware housings may provide resistance to damage, such as projectiles to provide enhanced security protection to the occupants or contents of the building structure.

A door includes a first skin, a second skin, and a core. The core is disposed between the first skin and the second skin in a thickness direction of the door and spans between the first and second skins. The core includes a corrugated medium that is fluted with fluting running back and forth in the thickness direction between the first skin and the second skin as the corrugated medium spans between the first and second skins. The door also includes a compressed section where at least one of the first skin and the second skin is compressed into the core toward the other of the first skin and the second skin in the thickness direction.

A bullet-resistant garage door is formed with multiple garage door panels spaced vertically and pivotable relative to one another to permit conventional opening of the garage door. Each garage door panel is formed with an interior ballistic panel, an exterior ballistic panel and an insulation panel positioned between the interior and exterior ballistic panels. A ballistic shield is attached to the exterior ballistic panel to overlap the gap between the exterior ballistic panels of adjacent garage door panels. The exterior ballistic panel is operable to allow the penetration of a bullet of a given caliber while dissipating the energy of the bullet so that the bullet will not penetrate the interior ballistic panel and become trapped in the insulation panel. Sheeting and trim members can be attached to the exterior ballistic panel and the shield to provide an aesthetically pleasing appearance for the garage door panels while maintaining bullet-resistant characteristics.