Castle High School Gym Kailua, Oahu, Hawaii Project Owner: Sate of Hawaii Completion Date: June 1998 A new 24,050 sf gymnasium on the campus of Castle High School. The facility is equipped with basketball courts, volleyball courts, retractable bleachers, weight training and wrestling rooms and locker/shower rooms. The project design included the installation of an electrical sound system, playcourt accessories, scoreboards, concession stand and ticket offices.