Indoor use of the Garmin R10 requires a minimum space of 15 feet long by 8 feet wide by 8 feet high (4.6 meters by 2.4 meters by 2.4 meters). Position yourself so that you can swing comfortably. Otherwise, you will likely see just limited distances. The R10's recommended dimensions of 18 feet in length, 15 feet in width, and 10 feet in height, as well as its center aim point, provide a more pleasant experience. You must ensure that the R10 is aligned and tilted properly so that the radar can see the ball adequately. This involves having sufficient space behind you (and, consequently, interior room length) to position the R10. Learn more about the space requirements for any indoor golf simulator in this article.