Whatever the biggest table is that you can fit in your space while being able to use a full size cue comfortably on all shots.
My home space is 14'-5" x 17'-3" and I have a barbox there now. Would it be better to get a 9 footer even though the space is too small or stick with the 7 footer?
Diamond recommends 14' x 18.5' for a 9 footer.
My room is 35 x 45, but I chose to go with an 8 footer, to get the best of both worlds. The pockets have been modified.
I play on Bar Boxes & 9 footers, plus I play GOLF on a 10 footer.
35 x 45 is not a room - It's a stand along cabin!
ps: Nice fire place, or is that a furnace that heats your entire village?
Very nice place you have there buddy!