The question is; ‘What should be the minimum distance between the screen and the first & the last row respectively?’ As I said earlier, if you know the answer, great! But if not, definitely opt for a Denver projector rental. In general, the distance should be at least ½ the screen-width from the first row and 1/6th of the screen-width from the last row.
Another reason for considering a Denver projector rental is because it gives you the option to relax and concentrate fully on your presentation while the projector specialist will take care of the rest, be it selecting the right type of projector or screen or calculating the right distance from the screen. The Denver projector rental services prove to be beneficial especially when you need a large screen for your presentation as it can be a very difficult task to set it up alone. However, always make sure to check with the service provider that they do provide ‘on-location’ support before hiring them.