3114B Pool Decks — 2025 California Building Code

A minimum continuous and unobstructed 4-foot wide (1219 mm) slip resistant, cleanable, nonabrasive deck area of concrete or like material shall be provided flush with the top of the pool coping extending completely around the pool, and the deck area shall further extend 4 feet (1219 mm) on both sides and rear of any diving board, fixed disabled access assistance device or slide and their appurtenances. The deck width shall be measured from the poolside edge of the coping lip.

Exception: A deck at least 4 feet (1219 mm) in width shall extend around a continuous 50 percent or more of the perimeter of a spa pool.

Where multiple pools and/or spas are built adjacent to each other, the deck width separat- ing them shall be a minimum of 6 feet (1830 mm).

The pool’s deck surface shall have a slope of no less than 1 percent (1/8 inch per foot) but no more than 2 percent ( [1] /

4 [ inch per foot) away from the pool to a deck drainage system and shall be constructed and finished to prevent standing water.]

Deck coverings or other materials that are not equivalent to concrete in strength, durability and slip resistance and are not able to withstand repeated brushing, scrubbing or cleaning procedures shall not be installed or used within 4 feet (1219 mm) of the pool.

Landscape plants, flower beds or similar unpaved areas shall not be located within 4 feet (1219 mm) of a spa pool.