The top trim of the panels is 32 in (81.28 cm) from the floor. The bottom of the window trim is 37.5 in (95.25 cm) from the floor. The ceiling will be 105.5 in (267.97 cm) high. I haven't yet decided on length/width of the room.
Any measurement is relatively easy to change; but I would rather change it early on than when there are many more verts to move around.

Friends don't let friends use booleans.