The space I plan to put the "theater" in will be about 11.5 ft wide by 14 ft long. The basement as a whole is larger than this, but this is the area where I think everything would fit nicely before running into HVAC and supports etc.
I'm not worried so much about the aesthetics as the basement is unfinished (except a small portion that's a guest bedroom) and I don't plan to finish it anytime soon. The walls are concrete blocks and the ceiling is not very high probably less than 7 ft.
For reference that countertop on the wall is 8 ft long.
