Published at Wednesday, September 28th, 2016 - 16:48:13 PM. Door. By john.
Construction and components Doors: Panel doors Panel doors, also called stile and rail doors, are built with frame and panel construction. EN 12519 is describing the terms which are officially used in European Member States. The main parts are listed below: • Stiles – Vertical boards that run the full height of a door and compose its right and left edges. The hinges are mounted to the fixed side (known as the "hanging stile"), and the handle, lock, bolt or latch are mounted on the swinging side (known as the "latch stile"). • Rails – Horizontal boards at the top, bottom, and optionally in the middle of a door that join the two stiles and split the door into two or more rows of panels. The "top rail" and "bottom rail" are named for their positions. The bottom rail is also known as "kick rail". A middle rail at the height of the bolt is known as the "lock rail", other middle rails are commonly known as "cross rails". • Mullions – Smaller optional vertical boards that run between two rails, and split the door into two or more columns of panels, the term is used sometimes for verticals in doors, but more often (UK and Australia) it refers to verticals in windows. • Muntin – Optional vertical members that divide the door into smaller panels. • Panels – Large, wider boards used to fill the space between the stiles, rails, and mullions. The panels typically fit into grooves in the other pieces, and help to keep the door rigid. Panels may be flat, or in raised panel designs. Can be glued in or stay as a floating panel. • Light or Lite – a piece of glass used in place of a panel, essentially giving the door a window. Board batten doors Also known as ledges and braced, Board and batten doors are an older design consisting primarily of vertical slats: • Planks – Boards wider than 9" that extend the full height of the door, and are placed side by side filling the doors width. • Ledges and braces – Ledges extend horizontally across the door which the boards are affixed to. The ledges hold the planks or battens together. When diagonally they are called braces which prevent the door from skewing. On some doors, especially antique ones, the ledges are replaced with iron bars that are often built into the hinges as extensions of the door-side plates. Ledged and braced doors As board and Batten doors Impact-resistant doors Impact-resistant doors have rounded stile edges to dissipate energy and minimize edge chipping, scratching and denting. The formed edges are often made of an engineered material such as Acrovyn. Impact-resistant doors excel in high traffic areas such as hospitals, schools, and hotels. Frame and filled doors This type consists of a solid timber frame, filled on one face, face with Tongue and Grooved boards. Quite often used externally with the boards on the weather face. Flush doors Many modern doors, including most interior doors, are flush doors: • Stiles and rails – As above, but usually smaller. They form the outside edges of the door. • Core material: Material within the door used simply to fill space, provide rigidity and reduce drumminess. • Hollow-core – Often consists of a lattice or honeycomb made of corrugated cardboard, or thin wooden slats. Can also be built with staggered wooden blocks. Hollow-core flush doors are commonly used as interior doors. • Lock block – A solid block of wood mounted within a hollow-core flush door near the bolt to provide a solid and stable location for mounting the doors hardware. • Stave-core – Consists of wooden slats stacked upon one another in a manner similar to a board and batten door (though the slats are usually thinner) or the wooden-block hollow-core (except that the space is entirely filled). • Solid-core – Can consist of low-density particle board or foam used to completely fill the space within the door. Solid-core flush doors (especially foam-core ones) are commonly used as exterior doors because they provide more insulation and strength. • Skin – The front and back faces of the door are then covered with wood veneer, thin plywood, sheet metal, fiberglass, or vinyl. The wooden materials are usually layered with the grain alternating direction between layers to prevent warping. Fiberglass and metal-faced doors are sometimes given a layer of cellulose so that they may be stained to look like wood. Moulded doors • Stiles and rails – As above, but usually smaller. They form the outside edges of the door. • Core material: Material within the door used simply to fill space, provide rigidity and reduce druminess. • Hollow-core – Often consists of a lattice or honeycomb made of corrugated cardboard, extruded polystyrene foam, or thin wooden slats. Can also be built with staggered wooden blocks. Hollow-core molded doors are commonly used as interior doors. • Lock block – A solid block of wood mounted within a hollow-core flush door near the bolt to provide a solid and stable location for mounting the doors hardware. • Stave-core – Consists of wooden slats stacked upon one another in a manner similar to a board & batten door (though the slats are usually thinner) or the wooden-block hollow-core (except that the space is entirely filled). • Solid-core – Can consist of low-density particle board or foam used to completely fill the space within the door. Solid-core flush doors (especially foam-core ones) are commonly used as exterior doors because they provide more insulation and strength. • Skin – The front and back faces of the door are covered with HDF / MDF skins. Swing direction Door swings For most of the world, door swings, or handing, are determined while standing on the outside or less secure side of the door while facing the door (i.e., standing on the side requiring a key to open, going from outside to inside, or from public to private). It is especially important to get the hand and swing correct on exterior doors, as the transom is usually sloped and sealed to resist water entry, and to properly drain. In some custom millwork (or with some master carpenters), the manufacture or installer will bevel the leading edge (the first edge to meet the jamb as the door is closing) so that the door fits tight without binding. Specifying an incorrect hand or swing will cause the door to bind, not close properly or leak (for exterior doors). Fixing this specification error will be expensive or time consuming. In North America, many doors now come with factory-installed hinges, pre-hung on the jamb and sills. While facing the door from the outside or less secure side, if the hinge is on the right side of the door, the door is "right handed"; or if the hinge is on the left, it is "left handed". If the door swings toward you, it is "reverse swing"; or if the door swings away from you, it is "Normal swing". In other words: • Left hand hinge (LHH): Standing outside (or on the less secure side, or on the public side of the door), the hinges are on the left and the door opens in (away from you). • Right hand hinge (RHH): Standing outside (or on the less secure side), the hinges are on the right and the door opens in (away from you). • Left hand reverse (LHR): Standing outside the house (or on the less secure side), the hinges are on the left, knob on right, on opening the door it swings towards you (i.e. the door swings open towards the outside, or "outswing") • Right hand reverse (RHR): Standing outside the house (i.e. on the less secure side), the hinges are on the right, knob on left, opening the door by pulling the door towards you (i.e. open swings to the outside, or "outswing") In Australia, the "refrigerator rule" applies, and a refrigerator door is not opened from the inside. If the hinges are on the right then it is a right hand (or right hung) door. (Australian Standards for Installation of Timber Doorsets, AS 1909–1984 pg 6.) In Europe one of the oldest DIN standard applies: DIN 107 "Building construction; identification of right and left side" (first 1922-05, current 1974-04) defines that doors are categorized from the side where the door hinges can be seen. If the hinges are on the left, it is a DIN Left door (DIN links, DIN gauche), if the hinges are on the right, it is a DIN Right door (DIN rechts, DIN droite). The DIN Right and DIN Left marking are also used to categorize matching installation material such as mortise locks (referenced in DIN 107). The European Standard DIN EN 12519 "Windows and pedestrian doors. Terminology" includes these definitions of orientation. In public buildings, exterior doors should open to the outside in order to comply with any fire codes that may be in force in that jurisdiction. If the door opens inward and there is a fire, there can be a crush of people who run for the door and they will not be able to open it. Types New exterior doors are largely defined by the type of materials they are made from: wood, steel, fiberglass, UPVC/vinyl, aluminum, composite, glass (patio doors)... Wooden doors – including solid wood doors – are a top choice for many homeowners, largely because of the aesthetic qualities of wood. Many wood doors are custom-made, but they have several downsides: their price, their maintenance requirements (regular painting and staining) and their limited insulating value 17] (R-5 to R-6, not including the effects of the glass elements of the doors). Steel doors are another major type of residential front doors; most of them come with a polyurethane or other type of foam insulation core – a critical factor in a buildings overall comfort and efficiency. Most modern exterior walls are designed to provide thermal insulation and energy efficiency, which can be indicated by the Energy Star label or the Passive Housestandards. Premium composite (including steel doors with a thick core of polyurethane or other foam), fiberglass and vinyl doors benefit from the materials they are made from, from a thermal perspective. Insulation and weatherstrips But there are very few door models with an R-value close to 10 (which is far less than the R-40 walls or the R-50 ceilings of super-insulated buildings – Passive Solar and Zero Energy Buildings). Typical doors are not thick enough to provide very high levels of energy efficiency. Many doors may have good R-values at their center, but their overall energy efficiency is reduced because of the presence of glass and reinforcing elements, or because of poor weatherstripping and the way the door is manufactured. Door weatherstripping is particularly important for energy efficiency. German-made Passive House doors use multiple weatherstrips, including magnetic strips, to meet higher standards. These weatherstrips are critical to reduce to a minimum energy losses due to air leakage. Dimensions United States The standard door sizes in the US run along 2" increments. Customary sizes have a height of 78" (1981 mm) or 80" (2032 mm) and a width of 18" (472 mm), 24" (610 mm), 26" (660 mm), 28" (711 mm), 30" (762 mm) or 36" (914 mm).18] Most residential passage (room to room) doors are 30" x 80" (762 mm x 2032 mm). A standard US residential (exterior) door size is 36" x 80" (91 x 203 cm). Interior doors for wheelchair access must also have a minimum width of 3-0" (91 cm). Residential interior doors are often somewhat smaller being 6-8" high, as are many small stores, offices, and other light commercial buildings. Larger commercial, public buildings and grand homes often use doors of greater height. Older buildings often have smaller doors. Thickness: Most pre-fabricated doors are 1 3/8" thick (for interior doors) or 1 3/4" (exterior). Closets: small spaces such as closets, dressing rooms, half-baths, storage rooms, cellars, etc. often are accessed through doors smaller than passage doors in one or both dimensions but similar in design. Garages: Garage doors are generally 7-0" or 8-0" wide for a single-car opening. Two car garage doors (sometimes called double car doors) are a single door 16-0". Because of size and weight these doors are usually sectional. That is split into four or five horizontal sections so that they can be raised more easily and dont require a lot of additional space above the door when opening and closing. There are single piece double garage doors found in some older homes. circa 1950s Europe The standard DIN doors are defined in DIN 18101 (published 1955-07, 1985-01, 2014-08). The door sizes are also given in the construction standard for wooden door panels (DIN 68706-1). The DIN commission was also responsible for the harmonized European standard DIN EN 14351-1 for exterior doors and DIN EN 14351-2 for interior doors (published 2006-07, 2010-08), which defines the requirements for the CE markinggiving standard sizes by examples in the appendix. The DIN 18101 standard has a normative size (Nennmaß) slightly larger than the panel size (Türblatt) as the standard derives the panel sizes from the normative size being different single door vs double door and molded vs unmolded doors. The DIN 18101/1985 defines interior single molded doors to have a common panel height of 1985 mm (normativ height 2010 mm) at panel widths of 610 mm, 735 mm, 860 mm, 985 mm, 1110 mm, plus a larger door panel size of 1110 mm x 2110 mm.19] The newer DIN 18101/2014 drops the definition of just five standard door sizes in favor of a basic raster running along 125 mm increments where the height and width are independent. The panel width may be in the range 485 mm to 1360 mmm, and the height may be in the range of 1610 mm to 2735 mm.20] The most common interior door is 860 mm x 1985 mm (33.8" x 78.1"). Doorway components When framed in wood for snug fitting of a door, the doorway consists of two vertical jambs on either side, a lintel or head jamb at the top, and perhaps a threshold at the bottom. When a door has more than one movable section, one of the sections may be called a leaf. See door furniture for a discussion of attachments to doors such as door handles, doorknobs, and door knockers. • Lintel – A horizontal beam above a door that supports the wall above it. (Also known as a header) • Jambs – The vertical posts that form the sides of a door frame, where the hinges are mounted, and with which the bolt interacts. • Sill (for exterior doors) – A horizontal sill plate below the door that supports the door frame. Similar to a Window Sill but for a door • Threshold (for exterior doors) – A horizontal plate below the door that bridges the crack between the interior floor and the sill. • Doorstop – a thin slat built inside the frame to prevent a door from swinging through when closed, an act which might break the hinges. • Architrave – The decorative molding that outlines a door frame. (called an Archivolt if the door is arched). Called door casing or brickmold in North America. Related hardware Door furniture or hardware refers to any of the items that are attached to a door or a drawer to enhance its functionality or appearance. This includes items such as hinges, handles, door stops, etc.
A car door is a type of door, typically hinged, but sometimes attached by other mechanisms such as tracks, in front of an opening which is used for entering and exiting a vehicle. A vehicle door can be opened to provide access to the opening, or closed to secure it. These doors can be opened manually, or powered electronically. Powered doors are usually found on minivans, high-end cars, or modified cars.
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