Thermally Modified Wood

From Fibre
to Future.

Follow our journey as we develop new wood products with world-leading technology. Western’s thermally modified Hem-Fir program is an open product development initiative using innovation and industry collaboration to create the next generation of sustainable wood products.

  1. Ideate Turn forest insight into a product development vision.
  2. Validate
  3. Buildout
  4. Rampup
  5. Launch

Follow our journey as we develop new wood products with heat and steam. We’ll run pilot projects and product testing with industry partners, sharing the science, field learnings, and collaborations shaping a new market for coastal B.C. fibre.

Thermal modification supports our vision for a sustainable future built with renewable wood products. The process fits naturally within our broader stewardship approach, connecting smarter fibre use, forest science, responsible manufacturing, and long-term value creation.

We're partnering with best-in-class global technology providers to bring thermal modification science to Hem-Fir. Through in-house process development, structured testing, and pilot-scale validation, we are learning how to optimize the process to enhance durability, stability, and appearance. Follow along as we gather new insights.

We've already invested in global-leading technology, created a dedicated team, and launched the platform. Now, we’re inviting architects, designers, value-add manufacturers, and other interested partners to help shape what comes next. Watch the team, the product, and the opportunity grow.

This is an open product development program built with collaboration partners across the wood products and design community.

  • Synthesis Design – Partner Profile.

    Synthesis Design is a North Vancouver-based design firm known for thoughtful residential work. They are helping us bring thermally modified Hem-Fir into architectural design.

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  • The Interior Design Show Vancouver – Pilot

    ids vancouver 2026

    The Interior Design Show Vancouver gives Western Forest Products a focused platform to introduce thermally modified Hem-Fir to the people who influence how new materials are understood, specified, fabricated, and adopted.

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  • Testing Thermally Modified Wood.

    Testing Thermally Modified Wood

    Thermal modification changes wood in useful ways, but it also changes wood in several ways at once. That is why testing is a foundation for responsible commercialization.

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  • Jartek – Our Thermal Modification Technology Partner.

    Thermal Modification Technology Partner

    Learn why Western Forest Products selected Jartek as its thermal modification technology partner for Hem-Fir, combining Thermowood® expertise, kiln precision, testing, and scalable production.

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  • Thermal Modification Testing Methodology for Hem-Fir.

    science behind thermal modification

    Learn how we validate thermally modified Hem-Fir through fibre selection, process trials, laboratory testing, finishing trials, field monitoring, and pilot projects. See the five stages of our methodology.

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  • The Science Behind Thermal Modification.

    Thermal Modification Process

    The process also changes the structure of cellulose and lignin. Cellulose becomes more ordered and less responsive to moisture. Lignin softens and re-hardens in a more cross-linked form. Extractives, including some oils, resins, and sugars, are partially evaporated. These changes affect colour, smell, moisture behaviour, stability, and biological resistance.

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