Jethro4WS est. the case map of CCoC for us.
In mid-August, 2016, upon entry from the Main Western Doors and turning right once inside to walk toward the SW Corner. There are 3 doors: 20, 18, 17. Using your map's key:
W3 - Door 20 * The green bar is also Door 20.
W4 - Door 18
There is another door here marked Door 17.
The Red Rectangular with the door opening is actually the "Family Room" or "Family RestRoom". Not numbered.
WB1 - Door 16 * Men's RestRoom; Needs to be rotated so door opens into alcove.
WB2 - Door 15 * Lady's Rest Room; Needs to be placed along the Western wall next to WB1.
The peach flooring in front of the Men's and Lady's Rooms form the alcove space. The alcove wall is missing on the map that begins at the SW corner, has a gap in the center and continues on down the wall to the Family RestRoom....
At the Stage, in the lower right corner of the map, Mimi this especially is for you!, where there is a green mark on the outer line on the light red box marked SS, that is a door. It is Door 14.
Also, at the Stage, in the NE corner, there is a light red box marked NS. The green mark is for Door 9. (Almost directly across from Door 8.)