Kirkland, WA Fence Regulations: Pool Barriers (2026)

Kirkland adopts the Washington State Building Code (RCW 19.27) which incorporates the International Residential Code including Appendix G on swimming pool barriers. Any residential swimming pool, spa, or hot tub with water deeper than 24 inches must be completely enclosed by a barrier meeting these specifications: minimum 48 inches tall measured from the ground on the side facing away from the pool; maximum 2-inch gap beneath the barrier on the exterior side; no openings through which a 4-inch sphere can pass; horizontal members must be on the pool side or spaced at least 45 inches apart vertically to prevent climbing. Gates must open away from the pool, be self-closing and self-latching, with latches mounted at least 54 inches above grade or on the pool side of the gate. Where a dwelling wall serves as part of the barrier, all doors leading directly to the pool area must have door alarms or be protected by a self-closing self-latching gate meeting the barrier specification. Hot tubs with ASTM F1346 rigid locking safety covers are exempt from the full barrier rule. Kirkland Development Services inspects barriers at pool final inspection.