Editing Door

{{Status|Canon}}
{{Wikipedia}}

[[File:Frunner_door_common.jpg|thumb|250px|right|A common type of Forerunner door.]]
'''Doors''' are movable barriers used to cover up openings; typically, such barriers are attached to the very openings they block. Doors are a basic component of architecture among all known major civilizations.

==Overview==
Like all technology created by the various organizations and civilizations that have existed throughout history, the doors they create are typically representative of their overall design styles and aesthetic preference.

==Types==
Types of doors include [[Shield door]]s and [[Blast door]]s.
===Covenant===
The [[Covenant]] frequently use curves as well as bright purples, blues, and grays in the design of their technology; everything from weapons to cities. The doors incorporate the curves and colors standard to Covenant design, most notably in [[High Charity]]. While many Covenant doors have indicator lights and work by sliding in and out of the walls, the doors in High Charity also flash and emit a tone when approached.{{Ref/Level|CE|[[The Truth and Reconciliation]]}}{{Ref/Level|H2|[[Gravemind (level)|Gravemind]]}}{{Ref/Level|Id=Cortana|H3|[[Cortana (level)|Cortana]]}}
<gallery>
File:H2 - High Charity door 1.png|A smaller Covenant door in High Charity's [[High Council Chamber]].
File:Covenant_door.jpg|A Covenant door in High Charity.
File:HaloLegends-CovenantDoor.png|A Covenant door onboard a {{Class|CAS|assault carrier}} in ''[[Halo Legends]]: [[The Package (animated short)|The Package]]''.
File:H2A HighCharityDoor.png|A Covenant door in High Charity.
</gallery>
===Humanity===
[[Human]] technology for doors has progressed over the past centuries. While most doors in the past have been based on a hinge system, the doors seen on Earth and equally-developed off-world [[Human colonies|colonies]] are almost exclusively sliding (except for the antiquated doors in [[Crow's Nest]]),{{Ref/Level|Id=crows|H3|[[Crow's Nest]]}} either opened by proximity or a switch located on the door itself. Like most human technology applied to everything from roads to spacefaring military vessels, the design is simple and geometric (with some discrepancies) with straight lines and angles, and involves blacks, grays, and browns. Most doors have a light on them that is either green to indicate that it is open or can be opened, or red to indicate that it is locked.{{Ref/Level|Id=poa|CE|[[The Pillar of Autumn (Halo: Combat Evolved level)|The Pillar of Autumn]]}}{{Ref/Level|H2|[[Cairo Station]]}}{{Ref/Level|H3|[[The Storm]]}} While human doors usually consist of one or two sliding segments, there are some exceptions, such as the multi-segmented doors in some of [[Reach]]'s industrial facilities.{{Ref/Level|HR|[[Tip of the Spear]]}}{{Ref/Level|HR|[[The Pillar of Autumn (Halo: Reach level)|The Pillar of Autumn]]}} Reinforced [[blast door]]s are a common sight in [[military base]]s and [[UNSC starship|starships]],{{Ref/Reuse|crows}}{{Ref/Reuse|poa}} but are also used in cities, such as [[New Mombasa]], to close off certain sections in emergencies.{{Ref/Level|ODST|[[Mombasa Streets]]}}
<gallery>
File:HCE-PoA-BulkheadDoor-Screen1.jpg|One set of bulkhead doors on the {{UNSCShip|Pillar of Autumn}}.
File:HCE-PoA-BulkheadDoor-Screen2.jpg|Another set of bulkhead doors on the UNSC ''Pillar of Autumn''.
File:01 cairostation doors large 2.png|A set of [[blast door]]s on ''[[Cairo Station (station)|Cairo Station]]''.
File:UNSC_bunker_door.jpg|A door in [[Crow's Nest]] in ''[[Halo 3]]''.
File:3_TsavoHW_2.jpg|A gate leading out of Crow's Nest.
File:Industrial_door.jpg|A door in [[Traxus Factory Complex 09]].
File:Reach_door.jpg|A door in a [[BXR Industries]] mining facility on [[Reach]].
File:H4-Render-UNSC-ControlSwitch.jpg|UNSC door control switch in ''Halo 4''.
File:H2A CairoStationBlastDoor.png|A set of blast doors on ''Cairo Station'' in ''[[Halo 2: Anniversary]]''.
</gallery>
===Forerunner===
Doors built by the [[Forerunner]]s are completely geometric and incorporate the similar light grays, browns, and blues of the rest of their technology. The doors themselves are geometric and often slide in multiple parts. They also have complex geometric designs on them, often patterned. This same trend can be seen on floors of Forerunner structures.{{Ref/Level|CE|[[The Silent Cartographer]]}}{{Ref/Level|CE|[[Assault on the Control Room]]}}{{Ref/Level|H2|[[The Arbiter]]}} [[John-117]] used a Forerunner door from the ''[[Anodyne Spirit]]'' to breach the [[Earth]]'s atmosphere during the [[Battle for Earth]].{{Ref/Level|H3|Arrival}}
<gallery>
File:HCE-ForerunnerDoor-screen.jpg|A Forerunner door on [[Installation 04]] in ''[[Halo: Combat Evolved]]''.
File:H2-GasMine-ForerunnerDoor-01.jpg|A closed Forerunner door on the [[Threshold gas mine]] in ''[[Halo 2]]''.
File:H2-GasMine-ForerunnerDoor-02.jpg|A Forerunner door opening on the gas mine in ''Halo 2''.
File:H2 - Delta Halo door 1.png|A door in one of [[Installation 05]]'s older structures.
File:H2 - Delta Halo door 2.png|Another door on Delta Halo.
File:H3-I04B-Forerunner_door.png|A Forerunner door on [[Installation 08]].
File:H2 - Quarantine Zone door 1.png|A multi-segmented door within Delta Halo's [[Quarantine zone (location)|Quarantine zone]].
File:H2 - Quarantine Zone door 2.png|Another, single-segment door within the Quarantine Zone.
File:HINF Zeta Door.png|A door on Installation 07 in ''[[Halo Infinite]]''.
File:HCEA-ForerunnerDoor-Screen.jpg|A Forerunner door in ''Halo: Combat Evolved Anniversary''.
</gallery>
===Flood===
{{Main|Porta}}
While the [[Flood]] do not have what we consider conventional architecture, they build their structures out of biomass they have consumed, adding to the disturbing overall impression of [[Flood hive|their hives]] being living things unto themselves. Flood doors, called [[Porta]]s, are built from biomass of infected hosts, and resemble valves like those in the heart. They open based on proximity. While the sections of the door itself retract, the circular frame of the door contracts at the same time.{{Ref/Reuse|Cortana}}{{Ref/Map|H3|[[Isolation]]}}
<gallery>
File:Porta.jpg|A Flood Porta in High Charity.
</gallery>

==Gallery==
<gallery>
File:HR_DoubleDoor_Concept.jpg|''Halo: Reach'' concept art for doors.
File:H2A Concept HCDoors.jpg|''Halo 2: Anniversary'' concept art for Covenant doors.
File:H2A Concept CairoDoors.jpg|''Halo 2: Anniversary'' concept art for UNSC doors.
File:HINF Concept CovieDoor.jpg|''Halo Infinite'' concept art (right) for Covenant doors usable in [[Forge/Halo Infinite|Forge]].
</gallery>
{{Linkbox|gallery=yes|gallerypage=Images of doors}}

==Sources==
{{Ref/Sources}}
[[Category:Buildings and structures| ]]