Constitution class decks

The decks of Federation starship:
* Deck 1
** Bridge (, et al.)
* Deck 2
** Guest quarters ()
* Deck 3
** Engineering (Impulse Deck) ()
** Recreation room 3 ()
** Recreation room 6 ()
** Crewmen's lounge ()
* Deck 4
** The forward edge of the ship ()
** Crew quarters ()
** Environmental control ()
** Auxiliary communications juncture ()
* Deck 5
** Sickbay ()
** Engineering (Impulse Deck) ()
** Engineering computer room ()
** Transporter room ()
** Recreation room ()
** Recreation room 3 ()
** Captain's quarters ()
* Deck 6
** Briefing room ()
** Crew quarters ()
** Guest quarters ()
** Main couplings ()
** Transporter room ()
* Deck 8 (H deck) 
**Auxiliary control ()
**Evaluation laboratory ()
**Weapons locker ()
* Deck 9
**Section 2
***Crew quarters
****3F 125: Spock ()
****3F 127: Leonard McCoy ()
***Life sciences department: Botany section ()
***Atmospheric system ()
**Section 4
*** Briefing room ()
* Deck 11
** Section A3
*** Engineering circuit bay ()
* Deck 12
** Crew quarters 
*** 3C 46: Janice Rand () 
*** 3F 121: James T. Kirk ()
* Deck 14
** Transporter room ()
** Engineering support ()
** Section C
*** Personnel director's office ()
* Deck 21 
** The habitable aft-end of the ship ()
** Power relay ()
* Deck 22
** Power transfer conduits ()
* Bottom deck:
** Hatch to satellite bay (, remastered) 
** Hatch to decontamination tanks spray release (, remastered)
== Appendices ==
=== Background information ===
The following deck layouts come exclusively from the , by Michael Okuda and Denise Okuda. 
Deck#	Major features(original configuration) 	Deck#	Major features(refit configuration)
1 	Bridge 	1 	Bridge
2 	Science labs 	2 	Science labs
3 	Science labs, life support 	3 	Science labs, environmental support
4 	Crew quarters 	4 	Crew quarters
5 	Crew quarters, including Captain's quarters 	5 	Crew quarters, including Captain's quarters
6 	Crew quarters 	6 	Crew quarters
7 	Sickbay, transporter room, briefing room, computer core, impulse engines	7 	Sickbay, transporter room, computer core
8 	Food preparation, recreation deck, ship's laundry, life support 	8 	Food preparation, recreation deck, ship's laundry
9 	Freight and cargo 	9 	Freight and cargo
10 	Freight and cargo 	10 	Freight and cargo
11 	Phaser controls 	11 	Phaser controls
12 	Interial dampening system, observation deck 	12 	Interial dampening system, observation deck
13 	Observation deck, dorsal interconnects 	13 	Photon torpedo launcher
14 	Engineering support, water storage 	14 	Engineering support, water storage
15 	Deuterium fuel storage 	15 	Warp drive reaction upper core injectors
16 	Deuterium fuel storage 	16 	Deuterium fuel storage
17 	Crew quarters 	17 	Deuterium fuel storage
18 	Power distribution subsystems 	18 	Main power transformers, sensor subsystems, deflector subsystems
19 	Main Engineering, Hangar deck 	19 	Main Engineering, shuttlebay, navigational deflector, long range sensors
20 	Shuttlecraft maintenance 	20 	Shuttlecraft maintenance, cargo bays 13-18
21 	Life support systems, cargo bays 	21 	Environmental systems, cargo bays 19-20
22 	Cargo bays 	22 	Botanical section, security confinement
23 	Antimatter storage pod 	23 	Tractor beam emitter, antimatter storage pod
 
The following deck layouts come from The Making of Star Trek, by Stephen Whitfield for the original configuration primary hull and from Mr. Scott's Guide to the Enterprise, by Shane Johnson for the refit configuration.
Deck#	Major features(original configuration primary hull) 	Deck#	Major features(refit configuration)
1 	Bridge, secondary phaser control 	1 	Bridge, V.I.P. docking port, emergency batteries
2 	Primary research labs, technicians' work areas and duty stations 	2 	Security chief's office, Temporary holding cells
3 	Primary research labs, technicians' work areas and duty stations 	3 	Kitchen, dining area, V.I.P. (Officers') lounge
4 	Crew quarters (junior officers', passenger) 	4 	V.I.P. quarters, junior officers' quarters, conference room
5 	Crew quarters (junior officers', passenger), senior officers' quarters 	5 	Senior officers' quarters, including Captain's quarters
6 	Crew quarters (junior officers', passenger), main engineering 	6 	Crew quarters, crew mess rooms, crew's lounge, personnel airlocks, gangway hatch, turbolift maintenance, impulse engineering, impulse deflection crystal, fusion reactors
7 	Sickbay, water and bulk storage, main computer core 	7 	Auxiliary control, sickbay, transporter rooms, briefing room, armory, rec deck, bowling alley and racquet ball facilities, chapel, cargo storage, life support, water tanks, battery systems, waste recovery, saucer section landing struts, main brig, gymnasium.
8 	Recreation area (outdoor simulation), holographic entertainment center, main mechanical food preparation, laundry, main computer core (lower part)	8 	Main docking ports, explosive bolts for separation, planetfall ramp, auxiliary fire control, laundry, fabrication facility
9 	Cargo and freight storage, technicians' repair shops 	9 	Viewing lounges, specialized passanger cabin
10 	Cargo and freight storage, technicians' repair shops 	10 	Primary hull circuit breaker room, specialized passanger cabin
11 	Primary phaser control facility 	11 	Main sensor array monitoring station, specialized passanger cabin
12 	 	12 	Photon torpedo storage, torpedo exhaust system
13 	 	13 	Photon torpedo room, torpedo tubes, docking ports, auxiliary torpedo fire control
14 	 	14 	Engineering computer monitoring room and bay
15 	 	15 	Main engineering, horizontal intermix chamber, dilithium reactor room, landing bay control room
16 	 	16 	Power converters (M/ARAs), secondary hull main battery room, Chief engineer's office, briefing room, primary maintenance, turbolift repair, landing bay observation galleries, landing bay tractor beam
17 	 	17 	Emergency transporters, circuit breaker room, cargo storage inspection balcony, docking ports, landing bay.
18 	 	18 	Cargo storage, secondary hull auxiliary control, shuttlecraft hangar, lifeboats
19 	 	19 	Cargo storage, cargo transporters, shuttlecraft maintenance
20 	 	20 	Matter/antimatter storage, botanical garden and lab, regulation pool sun deck, tractor beam housing
21 	 	21 	Matter/antimatter storage (lower part), tractor beam, waste recovery, water tanks, swimming pool
There is a discrepancy in The Making of Star Trek with the description of the primary hull as being eleven decks in height, but shown to be nine decks in height in a cutaway diagram. The secondary hull is stated to be sixteen decks in height, but shown in the diagram to be eight decks, with no exact locations given for the following features: fuel storage, supplies storage, main repair centers, water and waste reconversion, minimal quarters for engineers and star-drive personnel used only in the case of saucer separation and the hangar deck.
The most recent canonical cutaway graphic of the original Constitution-class was featured in . The graphic was originally produced by Doug Drexler for the Star Trek: Captain's Chair CD-ROM. It was also featured in the The official STAR TREK prop and costume auction catalog, pp. 36-37. In this image several key locations of the interior of the ship are recognizable as depictions, some are marked and labeled. The schematic depicts the ship as having 27 decks, and one more above deck 1 in the nacelles. The marked areas in this layout are:
Deck#	Major features(original configuration)
1 	Main bridge
2 	Stellar cartography (upper part), forward phasers t/b, field impeller (in the nacelles, behind the bussard ramscoops) and the warp coils (eight coils in each nacelle)
3 	Stellar cartography (lower part)
5 	Crew quarters
6 	Turbo shaft (horizontal), impulse deck (upper part)
7 	Sickbay, transporter rooms, briefing room, the impulse deck (lower part)
8 	Arboretums
9 	Cargo bays (saucer section, upper part)
10 	Cargo bays (saucer section, lower part)
11 	Forward phasers
12 	Planetary / perimeter sensor dome t/b (saucer section)
18 	Auxiliary control, small craft ops (above hangar door), power transfer conduits (four conduits run through each pylon)
19 	Shuttle bay (upper part), Main engineering (upper part)
20 	Shuttle bay (mid part), Main engineering (mid part)
21 	Deflector / long range sensor, main engineering (lower part), Shuttle bay (hangar deck)
22 	Aft phasers (below hangar door)
23 	Warp core (horizontal)
25 	Cargo bays (upper part)
26 	Cargo bays (lower part)
=== Related topic ===
*Constitution-class sets