The minimum space requirements for these two launch monitors are 10'W x 9'H x 16'D (for use with a simulator system). Both QED and EYE XO are mounted overhead. QED is positioned 3' behind the ball, whereas EYE XO is positioned 3' in front of the ball. However, this does not significantly alter the spacing requirements. Between 7-8 feet is required between the screen and projector, which places the hitting area 10-12 feet from the screen. You will need an additional 4-5 feet for your golf swing. Note that these units must be placed between 9 and 10 feet above your ball. Consequently, if your ceilings are higher than 10 feet, you will need to attach the launch monitor with an extension that lowers it inside that range.