Top Applications for Fire Treated Wood in Commercial Construction
When it comes to building safe and code-compliant commercial spaces, fire treated wood is a top choice for architects, builders, and developers. Treated with fire-retardant chemicals, this lumber is designed to slow the spread of flames and reduce smoke production, offering critical protection in the event of a fire.
In this post, we explore the most common fire treated lumber uses in commercial construction and how it plays a role in meeting local and national fire safety codes.
What Is Fire Treated Wood?
Fire treated wood (FRTW) is dimensional lumber or plywood that has been pressure-infused with fire-retardant chemicals. This process makes the wood more resistant to ignition and helps limit flame spread and smoke generation. It’s an ideal material for commercial buildings where fire safety is a top priority.
Top Applications for Fire Treated Wood in Commercial Buildings
1. Interior Wall Framing
FRTW is commonly used for non-load-bearing interior partitions in multifamily units, hotels, offices, and mixed-use buildings. This helps compartmentalize fires and slow their spread from one area to another.
2. Exterior Walls Near Property Lines
When code requires fire-resistant materials for walls close to neighboring buildings, fire treated wood for commercial buildings becomes an ideal solution—especially in urban or tightly spaced areas.
3. Roof Sheathing and Trusses
FRTW is frequently used in the roof systems of commercial buildings, particularly in Type III and V construction, where fire-rated assemblies are required. It helps reduce the spread of fire through attics and upper floors.
4. Stairways, Corridors, and Exit Routes
Because exit routes must remain protected during a fire to allow safe evacuation, using fire treated lumber in stairwells and corridors ensures compliance with building codes and enhances overall safety.
5. Exterior Decks and Covered Walkways
For commercial properties like hotels, schools, or hospitals, FRTW is often used in exterior decks, walkways, and canopies where exposure to the elements is expected, but fire resistance is still needed.
Why Builders Choose Fire Treated Wood
Code Compliance: Meets IBC and NFPA standards for flame spread and smoke development.
Versatility: Can be used in a wide range of structural and architectural applications.
Lightweight & Easy to Work With: Compared to steel or concrete, FRTW is easier to cut, fasten, and install.
Cost-Effective: Provides fire resistance without the added expense of non-combustible materials.
Final Thoughts
Whether you’re building a multi-story apartment complex, a commercial retail space, or a healthcare facility, understanding fire treated lumber uses can help you create safer, smarter structures. When installed correctly and in the right places, fire treated wood for commercial buildings offers the perfect blend of performance, safety, and cost efficiency.