Jefferson County, CO Fence Regulations: Material Restrictions (2026)
Key Facts
- General material rule
- No county type restriction
- Regulated instead by
- Height and placement
- WUI near-structure rule
- Noncombustible required
- Accepted WUI materials
- Metal, masonry, composites
- Reference
- Wildfire Resiliency Code Ch. 5
Summary
Outside the wildfire interface, Jefferson County does not restrict fence material types in the Zoning Resolution. Inside the WUI, fencing within 8 feet of a structure must be noncombustible or ignition-resistant, with metal, masonry, and tested composites among the accepted materials.
Acceptable materials include, but are not limited to, metal, masonry, and plastics/composites that meet testing requirements. See the Jefferson County Wildfire Resiliency Code Chapter 5 for specific details.
Full Breakdown
For standard fences the Zoning Resolution regulates height and placement rather than material, so wood, vinyl, metal, masonry and composite fences are generally allowed if they meet the height, setback and vision-triangle rules. The material limitation is wildfire-driven: in the WUI, fencing within 8 feet of a structure must be built of noncombustible or ignition-resistant materials, with metal, masonry, and plastics/composites that meet testing requirements listed as acceptable. See the Wildfire Resiliency Code, Chapter 5, for the full material specifications.
Violations & Fines
Standard material choices are not enforced, but noncompliant combustible fencing near structures in the WUI can be cited under the Wildfire Resiliency Code.
Frequently Asked Questions
Can I build a vinyl or composite fence?
Are there any material limits at all?
Sources & Official References
Other rules in Jefferson County
Compare Jefferson County to another location·View the Colorado fence regulations overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.