Editing Door

{{Era|Forerunner|Covenant|Human|UNSC|HCW|Post}} 
{{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.

==Background==
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 preferences.

===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>'''[[Halo: Combat Evolved]]''', campaign level, ''[[The Truth and Reconciliation]]''</ref><ref>'''[[Halo 2]]''', campaign level, ''[[Gravemind (level)|Gravemind]]''</ref><ref name="Cortana">'''Halo 3''', campaign level, ''[[Cortana (level)|Cortana]]''</ref>

===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 name="crows">'''[[Halo 3]]''', campaign level, ''[[Crow's Nest (level)|Crow's Nest]]''</ref> 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 name="poa">'''Halo: Combat Evolved''', campaign level, ''[[The Pillar of Autumn (Halo: Combat Evolved level)|The Pillar of Autumn]]''</ref><ref>'''Halo 2''', campaign level, ''[[Cairo Station (level)|Cairo Station]]''</ref><ref>'''Halo 3''', campaign level, ''[[The Storm]]''</ref> 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>'''[[Halo: Reach]]''', campaign level ''[[Tip of the Spear]]''</ref><ref>'''Halo: Reach''', campaign level ''[[The Pillar of Autumn (Halo: Reach level)|The Pillar of Autumn]]''</ref> Reinforced [[blast door]]s are a common sight in [[military base]]s and starships,<ref name="crows"/><ref name="poa"/> but are also used in cities, such as [[New Mombasa]], to close off certain sections in emergencies.<ref>'''[[Halo 3: ODST]]''', campaign level ''[[Mombasa Streets]]''</ref>

===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 and geometric designs on them, it is often patterned. This same trend can be seen on floors of Forerunner structures.<ref>'''Halo: Combat Evolved''', campaign level, ''[[The Silent Cartographer]]''</ref><ref>'''Halo: Combat Evolved''', campaign level, ''[[Assault on the Control Room]]''</ref><ref>'''Halo 2''', campaign level, ''[[The Arbiter]]''</ref>

===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 name="Cortana"/><ref>'''Halo 3''', campaign level, ''[[Isolation]]''</ref>

==Trivia==
The object [[John-117]] rode to Earth in the [[Arrival|beginning]] of ''Halo 3'' appears to be a Forerunner door from the [[Forerunner Dreadnought]].

==Gallery==
<gallery>
File:HCE-ForerunnerDoor-screen.jpg|A Forerunner door on [[Installation 04]] in ''Halo: Combat Evolved''.
File:HCEA-ForerunnerDoor-Screen.jpg|A Forerunner door in ''Halo: Combat Evolved Anniversary''.
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:H2 - Quarantine Zone door 1.png|A multi-segmented door within Delta Halo's [[Quarantine Zone]].
File:H2 - Quarantine Zone door 2.png|Another, single-segment door within the Quarantine Zone.
File:H3-I04B-Forerunner_door.png|A Forerunner door on [[Installation 08]].
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:UNSC_bunker_door.jpg|A door in [[Crow's Nest]].
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:H2A HighCharityDoor.png|A Covenant door in [[High Charity]]
File:Covenant_door.jpg|A door in High Charity.
File:H2 - High Charity door 1.png|A smaller Covenant door in High Charity's [[High Council Chamber]].
File:HaloLegends-CovenantDoor.png|A Covenant door onboard a {{Class|CAS|assault carrier}} in ''[[Halo Legends]]: [[The Package]]''.
File:01 cairostation doors large 2.png|A set of [[blast door]]s on ''[[Cairo Station (station)|Cairo Station]]''.
File:Reach_door.jpg|A door in a [[BXR Industries]] mining facility on [[Reach]].
File:Porta.jpg|A Flood Porta in ''Halo 3''.
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>
{{Linkbox|gallery=yes|gallerypage=Images of doors}}

==Sources==
{{Ref/Sources}}

==Related pages==
*[[Shield door]]
*[[Blast door]]
*[[Energy barrier]]
*[[Porta]]
*[[Piston]]
[[Category:Buildings and structures| ]]