Paddle Tennis courts are constructed of the same materials as tennis courts, or can also be placed on hard beach sand. The court measures 50 feet baseline-to-baseline and 20 feet across, with the service line 3 feet in from the baseline. This creates a service box of 10'x22'. The net is placed at 31 inches. On the west coast, a restraint line is drawn 12' back parallel to the net. When in use, all players must keep both feet behind the restraint line until after the player receiving the serve has struck the ball.