Wheelchair curling the rock handle, allowing the rock to be pushed while applying correct rotation. Stones delivered between the house and the near hogline must be placed within 18 inches either side of the centre line and must be released prior to reaching the near hogline. National and international competitions are played under rules devised by the World Curling Federation. These rules mandate that teams be of mixed gender, and that games be eight ends in duration. Time limits of 68 minutes for each team with one 60 second time out will be enforced by time clocks. Eligibility is limited to people
Arena curling is overcomable with some effort however, as evidenced by the fact that many curling clubs in Scotland (the home of curling) operate on arena ice. A second major challenge of arena curling is rock storage. Arena clubs must develop a system for storing the 42 lb rocks off ice, while scrupulously protecting the bottom running surface. In large arena clubs of 4 or more sheets, it can take considerable man-power to move rocks on and off the ice before and after each game. A related challenge of off-ice rock storage is rock temperature. To curl effectively, rocks must be maintained