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2025 California WUI Code NFPA 252 20-minute exterior-door path

The 2025 California Wildland-Urban Interface Code includes an exterior-door path with a fire-protection rating of at least 20 minutes when tested to NFPA 252.

This record covers the NFPA 252 alternative and documented door-leaf attributes only. Frame, glazing, hardware, perimeter gaps, installation, local amendments, and approval remain checks.

code · California mapped fire hazard areas · Last verified 2026-08-27 · JSON (CC BY 4.0)

Published requirement text

“Have a fire protection rating of not less than 20 minutes when tested according to NFPA 252”

2025 California Wildland-Urban Interface Code construction notes, Section 504.9 — Town of Truckee public record

Where this instrument is documented

Instrument cwuic-2025.

Set a location to read how this instrument lands where you are.

Place	Force	Reach	Dated	Checks open	Source
California	active application documented	mapped area	effective 2026-01-01	3	Building in the Wildland

Each place page carries that place's boundary, project scope and open official checks in full; this page's JSON twin carries them per application.

Machine-readable constraints

Attribute	Operator	Value
assemblyRole	eq	exterior-door
fireResistanceMinutes	gte	20
testStandard	eq	nfpa-252

Products with documented matching attributes

Open the Build rules that quote this requirement

Product	Category	Status	Documented match evidence
Steelcraft GRAINTECH 20-minute exterior door configuration	doors	Attribute match	3 cited fields Assembly role: exterior door Fire resistance: 20 min Test standard: nfpa 252

Sources

2025 California Wildland-Urban Interface Code construction notes, Section 504.9 — Town of Truckee public record (official). Accessed 2026-08-27.

2025 California WUI Code NFPA 252 20-minute exterior-door path. FireApproved. https://fireapproved.com/requirements/cwuic-2025-nfpa-252-exterior-door/. Last verified 2026-08-27.