Crossfield class decks

The decks of a Federation starship. (, et al.)
* Deck 1 
** Bridge (, et al.)
** Captain's ready room, replaced by science lab (, et al.)
* Deck 2
* Deck 3
** Two-level science lab: Logic sciences, replaced by Paul Stamets' spore drive lab ()
** Guest quarters ()
* Deck 4
** Sickbay ()
** Transporter room ()
** Loading bay ()
* Deck 5
** Mess ()
* Deck 6
* Deck 7
* Deck 8
* Deck 9
* Deck 10
* Deck 11
* Deck 12
** Utility closet, replaced by Logic sciences lab ()
* Deck 13
* Deck 14
* Deck 15 ()
*Deck 16
*Deck 17 ()
*Deck 18
File:USS Discovery, deck 1.jpg|Deck 1, aboard the USS Discovery
File:USS Discovery alpha shift.png|Deck 1, aboard the USS Discovery
File:USS Discovery, deck 4.jpg|Deck 4, aboard the USS Discovery
File:USS Discovery, deck 5.jpg|Deck 5, aboard the USS Discovery
File: USS Discovery, directions to shuttlebay.png|Directions to the shuttlebay from Deck 5
File:USS Discovery lower deck schematic.jpg|Deck 15, aboard the USS Discovery
==Background==
To account for set changes between season one and two, art director Jody Clement has suggested that the mess hall seen during season one was on deck 2, and the mess hall from season two was on deck 5. 
The Art of Star Trek: Discovery (p. 28) featured a production diagram depicting what deck each of the Discoverys frequently used rooms was intended to be located on.