When I said screen wall, I wasn't referring to a painted wall, I was refering to a false front theater wall that would house speakers. Take a look at the screen wall section in the dedicated HT forum. Lots of good information on sizing everything up. Not as easy as just saying yes, go with a 110" or a 120" or 160"! What I ended up doing was looking at a range of seating distances and configurations (single row, two row, single row with counter behind), type of seating. A Range of screen sizes. A range of screen placements on the wall. and a range of speaker placements on the front wall. All these things effect viewing and listening angles. A lot of screen size is personal preference, ask 10 opinions on what you should put on the wall and you'll get 10 different answers. But my guess is almost all of them would say go bigger. At 110" I think your more in the ballpark.