
THERMAL MODIFICATION
At our state-of-the-art facility in Port Angeles, Washington, we utilize the innovative Maspell kiln from Italy to conduct the thermal modification process on lumber. This advanced technique involves subjecting the lumber to heat and vacuum within a vacuum-sealed environment, eliminating any risk of fire.
During this precise procedure, temperatures gradually increase until reaching a peak of 400°F before entering a gradual cooling phase, spanning three days. The color of the wood deepens to a rich chocolate brown hue, serving as a visual testament to its enhanced durability.
Within the core of the lumber, a profound metamorphosis occurs, transcending mere surface alterations. Sugars and starches meld into a protective caramelized shield, fortifying the wood against termites and other invasive pests. Simultaneously, the cellular structure undergoes a strengthening process, enhancing its water resistance.
What is thermal Modification?

BENEFITS
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An important advantage of thermal modification is the decrease in sugars within the wood, which are usually targeted by decaying organisms and termites. This alteration renders the wood less appealing to these pests, consequently enhancing its resistance to decay.
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Through the extraction of moisture from wood cells, thermal modification enables the wood to maintain its shape, even under exposure to moisture. This leads to enhanced dimensional stability, minimizing the likelihood of warping or distortion.
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While the exact lifespan may vary depending on the wood species and application, thermal modification typically prolongs the life of wood products. A common estimate is approximately 25 years, highlighting the durability and longevity of modified wood.
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Thermal modification also helps reduce wood's susceptibility to warping and cracking when exposed to changes in humidity. The stabilized cellular structure resulting from this process contributes to the wood's resilience against such issues.
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Another advantage of utilizing thermally modified wood is its improved heat and sound insulation properties. This can be especially advantageous in applications such as paneling for spaces like music studios, where both aesthetics and functionality are paramount.
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Thermal modification is an environmentally friendly process that eliminates the need for chemicals. By utilizing only heat and vacuum, this method ensures the wood remains chemical-free. Moreover, sourcing wood from ethical suppliers like the Makah Tribe further enhances the sustainability aspect of our product.
We can provide lumber ethically sourced from the Makah SawmillI
Or...
We can modify lumber you provide.
We will work with you to ensure you understand the mass loss involved in modification based on species, so you can produce an end product suitable for your desired application. Need a Sawyer who is willing to make unique cuts for you? We can connect you.
Inquire here.
WHY CHOOSE US?
Quality: Our state-of-the-art facility and advanced techniques ensure the highest quality thermally modified wood products.
Sustainability: We prioritize ethical sourcing and environmentally friendly practices, making us a sustainable choice for your lumber needs.
Customization: We offer personalized service, working closely with you to deliver the perfect solution for your project.
Network: Benefit from our extensive network of professionals, including sawyers who can provide unique cuts to meet your requirements.
Commitment: We are dedicated to your satisfaction, from initial consultation to final delivery. Choose us for reliability and excellence in every aspect of your project ability for verifying quality and gathering data on species that haven’t been tested.