Of course we are free to choose our screen size perhaps one that is large enough to cover the entire wall area, but as a general guide, the height of the screen should be 1/6th of the distance between the screen surface and the last row of audience. The distance between the screen surface and the first row of audience should ideally be twice the height of the screen.
We must also consider the height of the screen from the floor. Usually this is about 4 ft or 1.2 meters because that is the average height of a seated adult. However in some cases where there is no obstruction in the line of sight then we are free to determine this height.
Now that we have calculated the height of our screen we shall proceed to calculate its width.
next -width and screen formats>>>