General Requirements. Each school shall provide an instructional program in physical education each year for all students in grades PreK-8. Each school shall offer a physical-education program in grades 9—12 which shall enable students to meet graduation requirements and to select physical-education electives. The following minimum spaces are required: A gymnasium; A teacher office or planning area; Equipment storage; and An outdoor instructional playing field. Elementary schools shall include a gymnasium with at least 2,200 net square feet. This space may have multi-purpose use in accommodating other educational program activities such as art program performances. Middle schools shall include a gymnasium with a minimum of 5,200 net square feet plus an additional 4 net square feet times 40 percent of the enrollment of the school devoted to bleacher seating. High schools shall include a gymnasium with at least 6,500 net square feet plus an additional 4 net square feet times 40 percent of the enrollment of the school devoted to bleacher seating. Combination schools shall include the elements of the grades served by §A(2)—(4) of this regulation without duplication, but meeting the higher net square feet standards. Other schools shall include the elements above necessary to meet the educational requirements of the specific programs and capacity of the schools. Physical-Education Requirements in Addition to Space Requirements in §A of This Regulation. Elementary schools shall include one office. Separate physical-education equipment storage shall be provided. Middle schools shall include one office. Separate physical-education equipment storage space shall be provided. High schools shall include two dressing rooms with lockers, showers, and restroom fixtures. Two offices shall be provided. Separate physical-education equipment storage space shall be provided. Combination schools shall include the elements of the grades served by §B(1)—(3) of this regulation without duplication, but meeting the higher standards. Other schools shall provide the elements above necessary to meet the educational requirements of the specific programs and capacity of the schools.