You need a short-throw projector. This means a throw ratio of between 0.4-1.0. A projector with a throw ratio of 0.5 will give you a horizontal screen image of 15ft wide when mounted 7ft 6 inches from the screen. A standard throw projector will need to be mounted much further from the screen for the same image size. We explain what these terms mean and their impact on your golf simulator in this article.