In addition to the requirements in the state building code, the department of health has rules regulating primary and secondary schools in chapter 246-366 WAC. One of those requirements is that "Instructional areas shall have a minimum average ceiling height of 8 feet."
Wash. Admin. Code § 296-150F-0625
Statutory Authority: RCW 43.22.340 and 43.22.480. 99-13-010, § 296-150F-0625, filed 6/4/99, effective 7/5/99.