Three main dimensions to screen size are:

• Height of Screen
• Width of Screen
• Distance from Floor or stage to bottom of screen.

Bigger is better in a lot of instances; however, in order to determine the screen width and size the following are good starting points:

Small audiences (70 or under): Screen Height should be at least ½ the distance from screen to first row.

Larger Audiences: Screen Width should be at least 1/5 the distance from the screen to the back row.

Distance from floor to bottom of screen: Minimum of 4 ft., larger audiences should be higher to insure that the bottom of the screen isn’t cut off from viewing by the people sitting in front half of audience.