page_title: Door
section_title: Types
hierarchical_section_title: Door / Construction and components / Types
caption_attribution_description: English: Glass and metal door on Calea Victoriei (Victory's Avenue) in Bucharest (Romania)
context_page_description: A door is a hinged or otherwise movable barrier that allows ingress into and egress from an enclosure. The opening in the wall is a doorway or portal. A door's essential and primary purpose is to provide security by controlling access to the doorway. Conventionally, it is a panel that fits into the portal of a building, room, or vehicle. Doors are generally made of a material suited to the door's task. Doors are commonly attached by hinges, but can move by other means, such as slides or counterbalancing.
  The door may be moved in various ways to allow or prevent ingress or egress. In most cases, a door's interior matches its exterior side. But in other cases the two sides are radically different.
  Doors often incorporate locking mechanisms to ensure that only some people can open them. Doors can have devices such as knockers or doorbells by which people outside announce their presence.
context_section_description: 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 (R-5 to R-6, not including the effects of the glass elements of the doors). Wood doors often have an overhang requirement to maintain a warranty. An overhang is a roof, porch area or awning that helps to protect the door and its finish from UV rays.
  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 building's overall comfort and efficiency. Steel doors mostly in default comes along with frame and lock system, which is a high cost efficiency factor compared to Wooden doors
  Most modern exterior walls provide thermal insulation and energy efficiency, which can be indicated by the Energy Star label or the Passive House standards. 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.
caption: Glass and metal door, decoarted with Neoclassical ornaments, in Bucharest (Romania)
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