Noncombustible Fence Within 5 Feet of a House: What Homeowners Need to Know
If your fence is within 5 feet of your house, deck, or another regulated structure, you may be wondering whether that section of fencing needs to be noncombustible.
The answer depends on the wildfire, building, and defensible-space requirements that apply to your property and local jurisdiction. But the reason this distance matters is straightforward: a combustible fence located close to a structure can create a pathway for flames or embers to reach the building.
Wildfire codes and home-hardening guidance in some jurisdictions specifically address fencing near structures. For homeowners and contractors, the practical question is often not whether an entire fence needs to be replaced, but whether the portion closest to the home or deck should be replaced or transitioned to a noncombustible material.
This guide explains why the 5-foot area around a structure matters, how different jurisdictions approach fencing near homes, and why noncombustible steel fencing can be a practical solution for high-risk sections of a property.
Does a Fence Within 5 Feet of a House Need to Be Noncombustible?
There is not one nationwide rule requiring every fence within 5 feet of a house to be noncombustible.
Fence requirements can vary by state, county, city, wildfire hazard area, building code, and the specific relationship between the fence and the structure.
However, several wildfire-prone jurisdictions have adopted requirements or guidance addressing combustible fencing near structures.
For example:
- Boulder County, Colorado: Wildfire code provisions effective July 1, 2026 address fencing within 5 feet of a regulated structure and require noncombustible fencing in applicable circumstances.
- Garfield County, Colorado: Wildfire resiliency guidance addresses fencing within 8 feet of a regulated structure in applicable hazard areas, with requirements for noncombustible or ignition-resistant materials.
- Ashland, Oregon: The city’s Wildfire Lands Overlay addresses fencing attached to a building or deck and requires noncombustible fencing within 5 feet of the connection in applicable circumstances. The provision also addresses retrofitting an existing wood fence so that it terminates in noncombustible material such as metal.
- California: The 0–5 foot area immediately surrounding structures, commonly referred to as Zone 0, is a major focus of wildfire mitigation and home-hardening efforts.
The important takeaway is that 5 feet is not a universal national fence requirement. It is a distance that increasingly appears in local wildfire and home-hardening requirements and should prompt property owners to check the rules that apply to their specific location.
Always verify the requirements for your property with the applicable local jurisdiction or qualified professional before replacing or modifying a fence for code compliance.
Why Does the 5-Foot Area Around a House Matter?
The area immediately surrounding a structure is especially important during a wildfire because embers can travel ahead of the main fire front and ignite combustible materials around a home.
California wildfire guidance, for example, identifies the 0–5 foot area around structures as a critical area for reducing potential ignition sources.
Common concerns include:
- Combustible fencing attached directly to a home
- Wood fence sections immediately adjacent to structures
- Gates or fence segments that connect combustible materials to a building
- Vegetation growing against or through a fence
- Leaves, needles and other debris accumulating at the base of a fence
- Fence configurations that can carry fire toward siding, decks, eaves or other vulnerable portions of a home
A fence does not have to be directly touching a house to deserve attention. The closer a combustible fence is to a structure, the more important its material, connection points and surrounding conditions become.
How a Fence Can Become a Fire Pathway
Fencing is often overlooked when homeowners think about wildfire protection.
A roof, vents, siding and landscaping may receive most of the attention, while the fence connecting a property boundary to the house can remain combustible.
A wood fence can contribute fuel to a fire. If flames or embers ignite that fence, the resulting heat and flames can expose nearby portions of a structure.
This is particularly important where a fence:
- Terminates against a house
- Connects to a deck
- Runs immediately beside a structure
- Connects two combustible elements
- Has accumulated vegetation or debris around its base
The objective of a noncombustible transition is to break the potential fuel pathway between the property boundary and the structure.
Fence-to-Structure Requirements Vary by Location
One of the most important things for homeowners to understand is that wildfire fencing requirements are jurisdiction-specific.
Boulder County, Colorado – 5 Feet
Boulder County’s wildfire code, effective July 1, 2026, specifically addresses fencing within 5 feet of a regulated structure and requires noncombustible fencing in applicable circumstances.
For properties subject to these provisions, the fence section closest to the structure may therefore require a different material than the remainder of the fence. [Boulder County’s wildfire code]
Garfield County, Colorado – 8 Feet
Garfield County’s Colorado Wildfire Resiliency Code guidance addresses fencing within 8 feet of a regulated structure in applicable hazard areas.
The applicable requirements may call for noncombustible or ignition-resistant fencing.
This illustrates why homeowners should not assume that the same clearance applies everywhere. One jurisdiction may use 5 feet while another uses 8 feet. [Garfield County’s Colorado Wildfire Resiliency Code]
Ashland, Oregon – 5 Feet
Ashland provides another particularly useful example.
Its Wildfire Lands Overlay addresses fencing attached to a building or deck and includes a 5-foot area from the connection where noncombustible fencing is required in applicable circumstances.
The provision also discusses retrofitting an existing wood fence so that it terminates in noncombustible material such as metal.
This is important for homeowners who may not need-or want-to replace an entire fence. [Ashland’s Wildfire Lands Overlay]
California – Zone 0 and the 0–5 Foot Area
California’s wildfire mitigation framework places significant emphasis on the area immediately surrounding structures.
Zone 0 refers to the 0–5 foot area around a structure and is a key focus of defensible-space and home-hardening guidance.
For homeowners in California’s wildfire-prone areas, combustible fencing near a structure should therefore be evaluated as part of the property’s overall wildfire mitigation strategy.
Can You Replace Only the Section of Fence Near Your House?
In some situations, the answer may be yes.
A homeowner with an existing wood fence does not necessarily need to replace an entire property-line fence simply because a portion is close to the house.
Depending on the local requirements and the configuration of the property, the highest-priority section may be the portion that:
- Connects to the house
- Connects to a deck
- Runs immediately beside the structure
- Creates a direct combustible pathway toward the home
One approach is to replace or transition the high-risk portion with a noncombustible material while retaining other sections of the existing fence where permitted.
This can be particularly useful when upgrading an existing property rather than building a completely new fence.
Always confirm the required configuration with the applicable local authority or qualified contractor before modifying an existing fence for compliance.
What Materials Can Be Used for a Noncombustible Fence?
Several fencing materials can provide noncombustible construction, depending on the specific product and applicable code requirements.
Steel
Steel is a noncombustible fencing material and can eliminate the fence itself as a combustible fuel source.
COLORBOND® steel fencing systems provide a durable metal privacy fence option and a noncombustible alternative to traditional wood fencing.
Masonry and Concrete
Masonry and concrete are also noncombustible materials and can provide excellent fire performance.
However, they may be more expensive or less flexible for residential privacy fencing applications.
Aluminum
Aluminum fencing can also be noncombustible, although the suitability of a particular system depends on its construction, application and the requirements of the applicable code.
Wood
Traditional wood fencing is combustible, including treated wood.
In wildfire-prone areas, replacing or separating combustible fence sections near structures can therefore be an important part of a broader home-hardening strategy.
Why Noncombustible Steel Fencing Is a Practical Option
For homeowners and contractors who need to address fencing near a structure, steel can provide several advantages.
A noncombustible steel fence can:
- Eliminate combustible fence material from the section being upgraded
- Provide privacy similar to a traditional solid wood fence
- Create a durable transition between a property boundary and a structure
- Reduce the fence’s contribution to wildfire fuel
- Provide a long-term alternative to repeatedly replacing combustible wood fencing
DuraBond Inc. supplies authentic COLORBOND® steel fencing systems for contractors, builders, developers, landscape professionals and distributors throughout the United States.
COLORBOND® steel fencing is available in modern privacy configurations and is particularly well suited to projects where durability, privacy, design and noncombustible construction are important considerations.
What to Do If Your Fence Is Within 5 Feet of Your House
If your fence is close to your house or another structure, start with these steps:
1. Measure the distance
Determine how close the fence comes to the house, deck or other regulated structure.
2. Identify the connection point
Determine whether the fence is physically attached to the structure or simply located nearby.
3. Check your local requirements
Do not assume that a 5-foot rule applies everywhere. Check the wildfire, building and defensible-space requirements for your specific jurisdiction.
4. Evaluate the fence material
Determine whether the section near the structure is combustible wood or another material that may contribute fuel to a wildfire.
5. Look for a transition opportunity
If only a portion of the fence is creating a potential pathway to the structure, investigate whether that section can be replaced or transitioned to a noncombustible material.
6. Clear vegetation and debris
Keep the area immediately around the structure and fence free of accumulated vegetation and debris as required by local guidance.
7. Work with a qualified contractor
If the project is intended to satisfy a specific wildfire or building-code requirement, have the fence configuration reviewed by a qualified local professional.
Contractors evaluating a larger replacement or retrofit can also review DuraBond contractor pricing and project resources.
Frequently Asked Questions
Does a fence within 5 feet of a house have to be noncombustible?
Not everywhere. Requirements vary by jurisdiction and property. Some wildfire-prone jurisdictions specifically require noncombustible fencing within a certain distance of regulated structures.
How close can a wood fence be to a house?
There is no single nationwide distance that applies to every property. Local wildfire and building requirements may establish specific distances, particularly in wildfire hazard areas.
Is a metal fence considered noncombustible?
Steel is a noncombustible material. However, the specific fence system, installation and applicable code requirements should always be evaluated for the project.
Can I replace only the part of my wood fence near the house?
In some situations, a partial replacement or noncombustible transition may be appropriate. Certain local provisions specifically contemplate retrofitting portions of existing fencing.
Does Zone 0 apply to fences?
Zone 0 refers to the 0–5 foot area immediately surrounding a structure in California’s defensible-space framework. Fencing within or adjacent to this area should be evaluated as part of the property’s overall wildfire mitigation strategy.
What if my fence is attached to my house or deck?
A fence attached to a structure can create a direct connection between combustible fencing and the building. Some local wildfire provisions specifically address this configuration, so check the requirements that apply to your property.
Do fence requirements vary by county?
Yes. Wildfire fencing requirements can vary by state, county, city and hazard area. A requirement in Boulder County, Colorado, for example, should not automatically be applied to a property in Oregon or California.
A Noncombustible Fence Can Help Break the Fire Pathway
The closer a fence is to a home, the more important its material and connection to the structure can become in wildfire-prone areas.
For some properties, the solution may be as simple as replacing the fence section immediately adjacent to the home or deck with a noncombustible material.
For others, local code may require a specific clearance, material or configuration.
The key is to understand the requirements that apply to your property and identify the portions of the fence that present the greatest potential fire pathway.
DuraBond Inc. supplies COLORBOND® steel privacy fencing for contractors and builders looking for a durable, noncombustible alternative to traditional wood fencing.
Need help sourcing noncombustible steel fencing for a project?
[Find a DuraBond Pro] | [Explore COLORBOND® Steel Fencing] | [Request Contractor Pricing]
Durabond operates in alignment with California wildfire resilience frameworks that prioritize ember resistance, defensible space integration, and non-combustible building materials in high-risk zones.
We are proud to be associated with leading wildfire mitigation initiatives and vetted industry programs that support safer construction practices across California.
Durabond is a reviewed participant of the Fire Safe Business Directory, a program of the California Fire Safe Council. This recognition highlights our commitment to fire-safe, high-performance fencing solutions, especially in wildfire-prone areas.
Learn more about our partnership here: California Fire Safe Council Corporate Partner Program.
