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Earlier editions: 20222019

Chapter 9 — FIRE PROTECTION AND LIFE SAFETY SYSTEMS

902 Fire Pump and Riser Room Size — 2025 California Building Code

California Building Code (Title 24, Part 2) · 2025 edition · updated 2026-09-25 · California

CBSC: official editions, supplements and errata

Italicized text is a California amendment to the model code, as printed in the official publication.

What does a fire pump or sprinkler riser room need?

At least 40°F with permanent heat; access doors labeled with 2-inch contrasting letters, 3/8-inch stroke. Provide ready access (locks allowed if a key is always available), permanent lighting, and enough space and clearance to service equipment and remove the largest piece without removing construction.

Cite as: 2025 California Building Code (Title 24, Part 2) § 902 · Effective January 1, 2026 · Official source: Building Standards Commission

[F] 902.1 Pump and riser room size. Where provided, fire pump rooms and automatic sprinkler system riser rooms shall be designed with adequate space for all equipment necessary for the installation, as defined by the manufacturer, with sufficient working room around the stationary equipment. Clearances around equipment to elements of permanent construction, including other installed equipment and appliances, shall be sufficient to allow inspection, service, repair or replacement without removing such elements of permanent construction or disabling the function of a required fire-resistance-rated assembly. Fire pump and automatic sprinkler system riser rooms shall be provided with doors and unobstructed passageways large enough to allow removal of the largest piece of equipment.

FIRE PROTECTION AND LIFE SAFETY SYSTEMS

[F] 902.1.1 Access. Automatic sprinkler system risers, fire pumps and controllers shall be provided with ready access. Where located in a fire pump room or automatic sprinkler system riser room, the door shall be permitted to be locked provided that the key is available at all times.

[F] 902.1.2 Marking on access doors. Access doors for automatic sprinkler system riser rooms and fire pump rooms shall be labeled with an approved sign. The lettering shall be in contrasting color to the background. Letters shall have a minimum height of 2 inches (51 mm) with a minimum stroke of 3/8 inch (10 mm).

[F] 902.1.3 Environment. Automatic sprinkler system riser rooms and fire pump rooms shall be maintained at a temperature of not less than 40°F (4°C). Heating units shall be permanently installed.

[F] 902.1.4 Lighting. Permanently installed artificial illumination shall be provided in the automatic sprinkler system riser rooms and fire pump rooms.

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▸Contents — California Building Code (Title 24, Part 2)
California Building Code (Title 24, Part 2)

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