# Defensible Yard

> Plain answers on California Zone 0 fences and gates, with the rules, dates and sources behind them.

Each article states whether a California Zone 0 rule is proposed or in force and as of what date, and cites primary sources. Full text of every article: https://www.defensibleyard.com/llms-full.txt

Statewide Zone 0 rule status (checked 2026-11-10): Adopted, not in force.
- 2026-08-19: Board of Forestry adopts the Zone 0 regulations (8 to 0 vote)
- 2026-08-28: Filed with the Office of Administrative Law as an emergency package, file 2026-0828-03E
- 2026-09-08: Withdrawn from the Office of Administrative Law before a decision
- Next: Refiling expected. We update the day it moves.
Details: https://www.defensibleyard.com/law-and-deadlines/is-zone-zero-law-in-effect/

## Law and deadlines

What California’s Zone 0 rules require, what is proposed versus in force, and the dates that matter.

- [Law and deadlines overview](https://www.defensibleyard.com/law-and-deadlines/): all articles in this topic
- [Zone Zero in California: the law, who it covers, deadlines](https://www.defensibleyard.com/law-and-deadlines/zone-zero-california-law/): Zone Zero in California: three state laws and a Board rule adopted Aug 2026 but not yet in effect. Who it covers, what it requires and the deadlines. (updated 2026-11-10)
- [Is Zone Zero a law in California? Status on Nov 10, 2026](https://www.defensibleyard.com/law-and-deadlines/is-zone-zero-law-in-effect/): Is Zone Zero a law in California? Not in force as of Nov 10, 2026: the Board adopted the rule Aug 19, 2026, then withdrew it from OAL Sep 8. What happens next. (updated 2026-11-10)

## Noncombustible materials

Which fence and gate materials count as noncombustible, and how that is tested and documented.

- [Noncombustible materials overview](https://www.defensibleyard.com/noncombustible-materials/): all articles in this topic
- [What is noncombustible material? The Zone 0 definition](https://www.defensibleyard.com/noncombustible-materials/what-counts-as-noncombustible-zone-0/): Noncombustible material means it passes the ASTM E136 furnace test, per WUI Code 501.4.1. What passes for Zone 0, what fails, and how to prove it (Nov 2026). (updated 2026-11-10)
- [Does aluminum melt in a fire? Wildfire and house fire heat](https://www.defensibleyard.com/noncombustible-materials/does-aluminum-melt-in-a-wildfire/): Aluminum melts at about 660 C (1220 F). Wildfires can reach 2,200 F and a room in flashover about 1,000 C, so it can melt, but melting adds no fuel. Nov 2026. (updated 2026-11-10)
- [Is aluminum noncombustible? What the E136 tests show](https://www.defensibleyard.com/noncombustible-materials/is-aluminum-noncombustible/): Is aluminum noncombustible? Yes in solid form: alloys tested to ASTM E136 passed. It melts at 660 C, which is not burning. What a Zone 0 buyer should ask for. (updated 2026-11-10)
- [Is powder coated aluminum noncombustible? The 501.4.1 test](https://www.defensibleyard.com/noncombustible-materials/is-powder-coated-aluminum-noncombustible/): Powder coated aluminum can count as noncombustible under WUI Code 501.4.1 if the coat is 0.125 in or thinner with an E84 flame spread of 50 or less. Nov 2026. (updated 2026-11-10)
- [Is vinyl fence fire resistant? What Zone 0 means for PVC](https://www.defensibleyard.com/noncombustible-materials/is-vinyl-fence-fire-resistant/): Vinyl fence is harder to ignite than wood but still combustible, so it fails the Zone 0 noncombustible test. What NIST, IBHS and San Diego say (Nov 2026). (updated 2026-11-10)

## Fences and gates

How Zone 0 applies to fences, gates and their attachments in the first 5 feet around a home.

- [Fences and gates overview](https://www.defensibleyard.com/fences-and-gates/): all articles in this topic
- [Zone 0 fence requirements in California](https://www.defensibleyard.com/fences-and-gates/zone-0-fence-requirements/): Zone 0 fence requirements: California's rule, adopted Aug 2026 but not in effect as of Nov 2026, would require 5 ft of noncombustible fence at the house. (updated 2026-11-10)
- [Do I have to replace my wood fence for Zone 0?](https://www.defensibleyard.com/fences-and-gates/existing-wood-fence-zone-0/): Not the whole fence. California's adopted Zone 0 rule (not in effect Nov 2026) would let wood fences stay and be repaired; only the attached 5 ft changes. (updated 2026-11-10)
- [Metal gate on a wood fence: does it meet Zone 0?](https://www.defensibleyard.com/fences-and-gates/metal-gate-on-wood-fence/): A metal gate on a wood fence would meet California's adopted Zone 0 rule (not in effect Nov 2026) only if the first 5 ft from the house is all noncombustible. (updated 2026-11-10)
- [Wood fence attached to house: what Zone 0 would require](https://www.defensibleyard.com/fences-and-gates/wood-fence-attached-to-house-zone-0/): Under California's Zone 0 rule, adopted Aug 2026 but not in effect as of Nov 2026, a wood fence attached to a house would need a 5 ft noncombustible span. (updated 2026-11-10)
- [Zone zero gates: what California's rule would require](https://www.defensibleyard.com/fences-and-gates/zone-0-gate-requirements/): California's Zone 0 rule, adopted Aug 2026 but not in effect as of Nov 2026, would require a gate attached to a house to sit in a 5 ft noncombustible span. (updated 2026-11-10)

## Cost

What replacing or retrofitting a fence for Zone 0 costs, with ranges and the basis for each.

- [Cost overview](https://www.defensibleyard.com/cost/): all articles in this topic
- [Zone Zero compliance cost: what homeowners may pay](https://www.defensibleyard.com/cost/zone-zero-compliance-cost/): Zone 0 compliance cost: a reported state estimate of $960.54 a home, San Diego fence quotes from $2,000 to $3,000+, who pays, grants and insurance offsets. (updated 2026-11-10)
- [Aluminum fence cost per foot installed (2026 prices)](https://www.defensibleyard.com/cost/aluminum-fence-cost-per-foot/): Aluminum fence costs about $22 to $72 per foot installed for standard styles and $65 to $180+ for LA privacy styles; a 5 ft Zone 0 section runs $2,000 or more. (updated 2026-11-10)
- [Aluminum gate cost: kit, installed and Zone 0 prices](https://www.defensibleyard.com/cost/metal-gate-cost/): Aluminum gate cost from published prices: a 4x6 ft kit at $808.75 before posts, installed walk gates $100 to $2,500, a San Diego Zone 0 gate job from $3,000. (updated 2026-11-10)
- [How much to replace a side gate: wood vs metal prices](https://www.defensibleyard.com/cost/side-gate-replacement-cost/): Side gate replacement cost from published prices: wood about $245 to $568 installed, steel from $600, aluminum from $2,000, a San Diego Zone 0 gate from $3,000. (updated 2026-11-10)

## Insurance

How insurers look at fences and Zone 0 work when writing and renewing California policies.

- [Insurance overview](https://www.defensibleyard.com/insurance/): all articles in this topic
- [Zone Zero insurance discount: what California insurers give](https://www.defensibleyard.com/insurance/zone-zero-insurance-discount/): Zone 0 work can lower California home insurance today, though no Zone 0 rule is in force (Nov 2026). What Safer from Wildfires, FAIR Plan and Mercury give. (updated 2026-11-10)

## Local rules

City and county ember-resistant zone rules across California and how they differ from the state rule.

- [Local rules overview](https://www.defensibleyard.com/local-rules/): all articles in this topic
- [Zone 0 ordinances by city: what's in force in California](https://www.defensibleyard.com/local-rules/zone-zero-rules-by-city/): Zone 0 ordinances by city as of Nov 2026: San Diego and Berkeley rules apply now, Oakland waits on the state, LA's status is unclear. Sources and dates. (updated 2026-11-10)
- [Zone Zero fencing in San Diego: the city's fence rules](https://www.defensibleyard.com/local-rules/san-diego-zone-zero-fence-rules/): San Diego Zone Zero fence rules: a 5 ft noncombustible span at the house, limits on parallel fences, narrow vinyl and FRT wood exceptions and a Feb 2029 target. (updated 2026-11-10)

## How-to

Step-by-step guides for planning, measuring and replacing fence sections near a house.

- [How-to overview](https://www.defensibleyard.com/how-to/): all articles in this topic
- [How to comply with Zone Zero in California](https://www.defensibleyard.com/how-to/how-to-comply-with-zone-zero/): How to comply with Zone 0 in California: measure 5 ft, clear mulch and debris, replace attached wood gates. Rule adopted Aug 2026, not in effect as of Nov 2026. (updated 2026-11-10)
- [How to attach a gate to a stucco wall](https://www.defensibleyard.com/how-to/attach-metal-gate-to-house-wall/): Fasten a metal gate post through stucco into the studs or masonry behind it and seal every hole. Wall options and Zone 0 rule status as of November 2026. (updated 2026-11-10)
- [How to replace a wood gate with a metal gate](https://www.defensibleyard.com/how-to/replace-wood-gate-with-metal/): Swap a wood side gate for metal: measure, check the 5 ft span, set a metal post or wall mount, hang and latch. The Zone 0 rule is not in effect as of Nov 2026. (updated 2026-11-10)
- [Zone 0 checklist: every item in California's 5-foot rule](https://www.defensibleyard.com/how-to/zone-zero-checklist/): Printable Zone 0 checklist from the rule text (14 CCR 1298.04, 1299.03) with each item's deadline for existing homes. Adopted Aug 2026, not in effect. (updated 2026-11-10)

## Product comparisons

Side-by-side comparisons of fence and gate materials and products for Zone 0.

- [Product comparisons overview](https://www.defensibleyard.com/product-comparisons/): all articles in this topic
- [Best fire resistant fence for Zone 0: materials compared](https://www.defensibleyard.com/product-comparisons/best-fire-resistant-fence/): The best fire resistant fence for Zone 0 is steel, aluminum or masonry. How ten fence materials compare on fire, cost, privacy and upkeep, as of Nov 2026. (updated 2026-11-10)
- [Steel vs aluminum fence: which is better near a wildfire?](https://www.defensibleyard.com/product-comparisons/aluminum-vs-steel-fence-wildfire/): Steel vs aluminum fence for Zone 0: both are noncombustible. How they compare on melting point, heat, rust, salt air, weight, cost and upkeep (Nov 2026). (updated 2026-11-10)

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