The length of a half-pipe in freestyle snowboarding typically measures between 22 to 24 feet high and can be 400 to 600 feet in length. Half-pipes are designed to allow athletes to perform aerial tricks and maneuvers while using the curved walls of the pipe. The dimensions of the half-pipe ensure that snowboarders have enough height and speed to execute their performances during competitions, such as the X Games or Winter Olympics, which often emphasize creativity and technical skill.