We recommend mounting your golf impact screen a minimum of 12-16 inches away from the wall, just to be safe. If you are really good and hit the ball hard you may want to increase this distance. This is also true if you build a Golf Simulator Enclosure or Hitting Cage. Make sure the screen is a minimum of 12-16 inches away from any support poles or you risk the ball ricocheting back at you. Do not put tension on the screen, you need to allow for some movement.