I was just looking for some feedback here. I've recently purchased another home and will be building another theater... The room is already "built". I'll try to explain it as best I can here. The room is on the 2nd floor over a 3 car garage. The floor space of the room is 20'6" wide (across the screen wall) and 19'4" long (from the entry to the screen wall) with a max ceiling height of 11 feet. There is a hip roof that angles in 3 of the walls. The 2 side walls begin a 45 degree slope to the ceiling at about 5 feet high. The screen wall begins a 45 degree slope to the ceiling at about 3 feet high. Now, the angled walls are perfect for the pyramid I plan on turning the room into, but I lose space in the room because of them. The side walls are no issue at all. It's the screen wall that is forcing some issues and decisions. If I leave the screen wall where it is set up for now, using the riser calculator dimensions (my riser is set at 13 inches because of how the entry comes into the room), I lose about 46 inches of depth in the room because of the screen and where it needs to be placed. Which puts the first row of seating about 10 feet from a 120" screen and the second row at 15.5 feet away. The measurements using the calculator are as follows:
Bottom of screen to the floor: 28 inches
Top of screen height: 87 inches
Floor space (depth) lost to the screen and wall angle: 46 inches
Riser depth (to accomodate a couch): 5.5 feet
Distance from screen to first row seated eyes: 10 feet
Is this too close to a 120 inch screen from the first row? I will be utilizing a 1080p projector.