16 ft  x 9 ft - up to 200 viewers
25 ft x 14 ft - up to 400 viewers
30 ft x 17 ft - up to 700 viewers
40 ft x 22.5 ft - 700 to 2000 viewers

 

The 16 x 9 screen can be used with front or rear projection. The three larger screens are front projection only.