Glossary of Door Installation Terms

<div class=article-entry><img alt= class=attachment-post-thumbnail size-post-thumbnail wp-post-image height=675 loading=lazy sizes=(max-width: 900px) 100vw, 900px src=https://dcr-apis.s3.us-east-2.amazonaws.com/wp_contents/uploads/2017/06/A26DGlassDepot011.jpg srcset=https://dcr-apis.s3.us-east-2.amazonaws.com/wp_contents/uploads/2017/06/A26DGlassDepot011.jpg 900w, https://dcr-apis.s3.us-east-2.amazonaws.com/wp_contents/uploads/2017/06/A26DGlassDepot011-300x225.jpg 300w, https://dcr-apis.s3.us-east-2.amazonaws.com/wp_contents/uploads/2017/06/A26DGlassDepot011-768x576.jpg 768w width=900/><div class=featured-caption></div>Becoming familiar with terms commonly used by door installation professionals can help you better understand the process and communicate with your contractor.accordion doors A door style featuring multiple hinged, sliding doors that fold up like an accordion when the door is open. Often used in long arrays to create an open wall.Also known as: multi fold doors, folding doorsastragal A molding attached to a pair of doors that prevents them from swinging or sliding completely across the entryway or door opening. Also eliminates air gaps, preserving air integrity and reducing infiltration.back door An exterior door located in the rear of the homebifold A kind of door that can be folded into two parts (similar to accordion doors)book size The dimensions of the door as listed by the manufacturer, prior to being sized and custom cutbutt A type of door hinge on swinging doors featuring interwoven knuckles connected to flat “leaves” on the door and jamb, into which a pen is droppedbypass doorframe A doorframe used to accommodate sliding doors that move horizontally along a track. Such a system saves space thanks to the elimination of swing area.casing A type of molding used as trim for door openingsclad Covering one material with a protective and insulating layer, often metalconduction The transfer of heat through another materialcoping Cutting the end of wood molding to properly align with and fit the pattern of the wall or other moldingcove A concave molding used in cornerscrossbuck A pattern of intersecting diagonals in the door panels (also known as diagonal rail)door bevel The angled cut of the lock side of the door that enables it to swing free of the framedoor core The type of core material used inside a door to obtain some degree of fire rating and strength. Common types are corrugated honeycomb paper, particleboard, wood stave, polystyrene, mineral fiber and polyurethane.door face The large, exterior surface of the door. In wood doors, the surface from which the lumber grade is determined.doorframe The casing into which a door fits, consisting of one header, two jamb legs and a stopdoor jamb The part of a frame that contacts the top rail of the doordoor panel A piece of often rectangular material located in the frame made by the stiles, rails and mullions of a doordouble action door A door with hinges or pivots that allow it to swing in both directionsdrip cap A type of molding that helps water flow away from the exterior face of an outside doorDutch door A door split into upper and lower sections that can be opened independentlyextension jamb Flat pieces positioned on the inside of a door frame that allow it to fit flush into a wider wallexterior threshold The threshold that’s beveled to prevent water from passing under the doorFrench door A type of door featuring a face made of divided glass panels. French doors often come in double door pairs.grade Describes the level of quality of a door material, especially woodgypsum A fire-retardant rock often used in painthead casing The horizontal casing on the top of an entrywayfiberglass A strong, relatively durable synthetic material made of molten glass used to make mid-range doors, and as insulation in core materialfire door A door designed to meet standards for fire ratings and fireproofing of various durations using special fire-resistant cores and framesflashing A strip used to eliminate water and air leakage between a door frame and a wallflexible sweep A flexible rubber or vinyl strip affixed to the bottom of a door to create a sealfrosted glass An opaque, often white-colored glass that allows light to pass while still obscuring the view, thereby providing privacy. Common in exterior doors.hinge Hardware used in the swinging door system to allow the door to rotate open and closed around the hinge radiushollow–core doors Doors that consist of a cardboard interior rather than a solid wood or other heavy core material. Lighter and less expensive, these doors also provide significantly less soundproofing and are not as durable.infiltration The passage of air between one environment and another due to lack of airtightness. Compromises an interior environment.insulation A material or action that prevents the leakage of heat, moisture or soundknob latch set A common type of door hardware consisting of a knob that turns a spring-operated latch. Also known as latch set or passage set.lock rail The rail at lock height of the door containing the lock block and lock setLouvre door A type of door featuring downward sloping horizontal slats that provide ventilation while still offering a measure of privacymullion The vertical rail that divides the panels in the face of a dooropen wall A popular design trend featuring a retractable or removable wallspace and blurring the line between interior and exterior home environment. Often accomplished using some variety of sliding door or garage door.particleboard The panel comprised of wood pieces bonded together, often used in the core of the doorpin A thin, cylindrical piece that serves as the axis of rotation for hinged doorspivot doors Doors that pivot open by turning around a central radius located somewhere between the side edges. This allows the weight to rest fully on the ground as opposed to hanging from a hinge, enabling pivot doors to be significantly heavier than traditional swinging doors.pocket doors Doors that slide out of a wall to cover the door open. When open, pocket doors essentially “disappear” back into the wall, eliminating the swing radius of the swing door and saving space.soundproofing The process of minimizing the transfer of sound waves from one side of an entry way to the other. Often involves creating a vacuum-sealed space or installing dampening materials.solid–core doors Doors that feature a solid interior. Heavier, more expensive and more soundproof, solid-core doors are also stronger and feel higher quality.stile The vertical side pieces on the face of the doorswinging doors Traditional hinged doors that feature inward or outward swings and handle hardware, unlike many sliding doors. The most common door design.Also known as: hinged doortrim Decorative millwork and moldings surrounding a door openingveneer A thin sheet of wood (usually between 1/100 and 1/4 of an inch) that forms the surface of many wood doorsweathering Damage caused by exposure to the elements, especially sunlight, rain and wind-borne particles.weatherproofing The process of preparing a door and entryway to withstand the elements with maximum resilience and durability. Often involves watersealing and insulation.</div>