My sim room is small compared to most.. but luckily it works for me. Room is 16 x 11.5 and the ceilings are only 8ft 10in which is enough for me to swing driver in, but my brother for example could not if he were to use it. Either way I built it for my own practice and not for entertainment, so it should still work.

Still waiting on Foresight software, and for my projector mount to show up. Also still need to hem the side curtains and put foam on the ceiling. Will post more pics when the room is all finished. For now, here is the mat and the screen.