Intrepid class decks
The fifteen decks (with 257 rooms, including the holodeck) of an  Federation starship. ()

 Deck 1
 Bridge ()
 On the starboard side (): Captain's ready room ()
 Briefing room ()
 Aft of the bridge: Cargo hold ()

 Deck 2
 Captain's private dining room, cabin 125 Alpha ()
 Officers' and VIP quarters ()
 Mess hall ()

 Deck 3 
 Officers' and VIP Quarters

 Deck 4
 Transporter rooms 1 and 2 ()
 Energy grid, location of bio-neural gel pack, section 9 C ()
 Cargo bay 2 ()
 Crew quarters ()

 Deck 5
 Sickbay ()
 Chief Medical Officer's office ()
 Sections 10-53 ()

 Deck 6
 Holodeck 2, section 9 ()
 Energy Grid section 4 Beta – location of bio-neural gel pack ()
 Armory ()
 Crew quarters ()

 Deck 7 
 Jefferies tube "A-17" ()
 Turbolift, section 13 Alpha ()
 Communication line access panel ()
 Crew quarters ()

 Deck 8
 Cargo Bay 2, section 4 ()
 Science lab, section 22 ()
 Astrometrics, section 29 ()
 Crew quarters ()

 Deck 9 
 Crew quarters: section 12 (), section 22 ()
 Section 23 ()

 Deck 10
 Shuttlebay, junction 32 Alpha ()

 Crew quarters ()
 Section 12 ()

 Deck 11
 Airponics bay ()
 Deflector control, section 59 ()
 Main Engineering, section 4 B; starboard side and section 32 ()
 Jefferies tube "84", section 3 and Jefferies tube "17" Alpha ()
 Jefferies tube, section 2 ()
 Section 3 ()
 Section 94 ()

 Deck 12 
 Navigational control, section B7 ()
 Environmental control ()
 Secondary command processors ()
 Section 42: was the place of mysterious entity, looking like an energy discharge. () 

 Deck 13
 Located 10 meters below Engineering ()

 Deck 14
 Section C-5 ()
 Section 12 ()
 Stasis Units ()
 Holodeck ()

 Deck 15
 Jefferies tube "G-33", uninhabited ()
 Jefferies tube "12", section 29 Alpha ()
 Plasma relay room, junction "Room 16" ()

 Unknown
 Jefferies tube 32 ()

Background information 
, featured a briefing on deck one of Voyager, noting deck one was "served by a single turboshaft which opens onto the bridge", with a standby turbocar accessible through the corridor leading from the ready room behind the bridge, as well as two escape pods, space suit lockers, a small office area, a weapons locker, and an airlock.

Voyager Technical Manual 
This is the layout of the  according to Star Trek: Voyager Technical Manual, an adaptation of the Star Trek: The Next Generation Technical Manual, intended as a writers guide for VOY Season 1.