Zone 0
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In San Diego County, Zone Zero for fencing refers to the mandatory 0-to-5-foot ember-resistant zone immediately surrounding homes, structures, and attached decks, where wooden fences, gates, and trellises connected to a house must be replaced with non-combustible materials (metal, masonry). Effective February 2026 for new builds and February 2027 for existing homes in high-fire zones, this regulation aims to prevent the spread of fire.
Fire-Safe Fencing Options
California's Zone 0 regulations emphasize using non-combustible or fire-resistant materials to prevent wildfire spread. If your fence is attached to your home or within 5 feet of a structure, it must not be made of combustible materials like untreated wood.
Approved Fire-Resistant Fencing Materials for Zone 0
Must Meet ASTM E136, E84, & E2768 Class A Fire Standards
✔ Metal Fencing (Best for Fire Resistance)
Steel, Aluminum, or Wrought Iron – 100% non-combustible and highly durable.
Chain-link fencing (with metal or fire-resistant privacy screens) is acceptable.
Pros: Completely fireproof, long-lasting, requires minimal maintenance.
METAL WALL FENCE SOLUTIONS
ALUMISSION
🔥City of San Diego Fire Hazard Zone Map Update 2025
🔥City of San Diego FHSZ (Fire Hazard Severity Zone) Webpage
🔥Cal-Fire Defensible Space Webpage
🔥2025 LRA SDFD FHSZ PowerPoint
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