Introducing Mataverde Thermawood Hem Fir Fire Resistant Decking

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Looking for beautiful real wood decking that performs well and meets the new fire codes in many areas? Meet Mataverde ThermaWood FR Hem Fir Decking. This fire retardant treated decking option offers the beauty of thermally modified Hem Fir decking with enhanced fire resistance.


When you look at thermally modified Western Hem Fir decking, the beauty is undeniable. Hem Fir decking closely matches the natural look you would find in the upper grades of Western Red Cedar decking. The thermal modification process used to produce Mataverde ThermaWood Hem Fir decking creates a finished decking product that is more durable, more stable and has more consistent color and graining.

Mataverde Therma Wood HemlockThermally modified Hem Fir Decking is naturally beautiful and performs great.

And it just got better. Mataverde Thermally Modified Western Hem Fir decking is now available as a fire retardant treated decking material. Introducing Mataverde ThermaWood FR Hem Fir decking. This fire retardant treated decking material meets many of the new building codes for fire resistant exterior woods.

Want to see a piece of Thermawood FR decking for yourself?

Order a sample today.


New building code requirements are driving the need for more fire-resistant wood decking options

Many of the international building code requirements for flame resistance are stricter than ever. These agencies include the International Residential Code (IRC), International Building Code (IBC) and the International Code Council (ICC) and others. The main difference with the new codes, is that an additional 20 minutes of flame resistance and smoke density is required.

 Mataverde Therma Wood Hemlock decking works great in all climates

Mataverde Thermawood Hem Fir decking is now available with fire retardant treatment

Many local jurisdictions are now adopting these latest measures, especially in Wildland Urban Interface (WUI) zones and other areas that have a high likelihood of fire hazards. Local code officials are enforcing these new safety measures. Mataverde Thermawood FR Hem Fir Decking meets these new code requirements.

These new flame and smoke code requirements are being now adopted in more areas constantly. To make sure your design or project meets the new codes, always check the local requirements in your area with the jurisdiction(s) having authority. State, county, and local building codes and building inspectors are a great resource and a very good place to start.  Mataverde Thermawood FR Hem Fir meets the most stringent fire resistance codes, meeting the IWUI International Wildland Urban Interface requirements.

DOWNLOAD ICC-ES ESR-1159 IWUI Evaluation Document for Mataverde Fire Retardant Treated wood

What are my fire retardant treated wood decking options?

Mataverde Thermawood FR (Flame Retardant Treated) decking is now available in C+ Better Grade Hem Fir wood.  Thermally modified Hem Fir decking is beautiful, and it performs great. The unique vacuum kiln thermal modification process makes the wood harder, stronger, more durable, more flexible and more stable. That’s because the pressure in the vacuum kiln allows the wood to be thermally modified at lower temperatures. This high pressure / low temperature combination is more beneficial to the wood.


Mataverde fire retardant treated Hem Fir decking is installed the same way as standard thermawood modified Western Hem Fir decking. Maintenance and finishing are the same, too. If you are finishing your Mataverde Thermawood FR Hem Fir Decking, oil paints or stains are recommended for best results. Oil finishes may be maintained if you wish. Or the Hem Fir decking may be allowed to weather to a silvery gray patina for a low maintenance option.


Thermally Modified Hem Fir Siding and decking

Mataverde ThermaWood FR Hem Fir is now available in fire resistant decking and siding

Looking for more information about Mataverde ThermaWood Hem Fir Decking? 

Thermawood FR Fire Retardant Treated Lumber Info

Thermally Modified Hem Fir Decking info

Thermally Modified Wood Decking Photo Gallery

Compare Thermally Modified Hem Fir to Western Red Cedar article

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