Feature Grade Thermally Modified Timber with Butterfly Knots

Rustic, feature-grade thermally modified timber. With beautiful knot detailing and natural characteristics,  JSC TMT Taiga is our feature-grade thermally modified timber offering. With a more unique ‘knotted’ appearance, TMT Taiga is suitable for use across a range of interior and exterior applications, including cladding, interior linings, battens, and more.

The chemical-free, thermal modification process finishes the timber in a rich brown tone, enhancing the knot detailing. It is sourced from Oy Lunawood Ltd in Europe and profiled locally by JSC into New Zealand-approved profiles.

Uses of the TMT Taiga Range

Supplied in random but typically longer length spread, giving greater flexibility and design potential, TMT Taiga can be used for a variety of applications such as cladding, interior timber panelling, screen and battens, and more. See the information sheet for more information.


JSC TMT Taiga is suitable for a wide range of oil and water-based coatings well and can accept darker coatings including black with a significant reduction in dimensional movement.

  • Category
    Timber Cladding, Wall & Ceiling Finishes
  • Range
    Thermally Modified Timber
  • Brand
  • Type of use
    Commercial and Residential
Scope of use

TMT Taiga can be used for a variety of applications such as cladding, interior timber panelling, screen and battens, and more. See the information sheet for more information.

According to the chosen weatherboard profile, installation of the TMT® Taiga weatherboard range is to be done as per our cladding system guidelines for:

For the fixing of TMT® Taiga weatherboards, only Stainless Steel fastenings must be used. For compliance documentation, please contact us.

Note: 200mm sizing not available, talk to us about alternative STK grade timbers.


Key properties of JSC TMT Taiga

  • This feature-rich timber has light brown tones and “butterfly knots” showing up at regular intervals that give cladding and interiors a completely unique personality
  • Enhanced durability and stability
  • Low susceptibility to fungal decay and moisture retention
  • Consistent, rich natural colour
  • Ability to accept darker coatings and stains (both oil and water-based)
  • Aesthetically pleasing knot detailing, without compromising on quality or stability, provide an architectural detail
  • Easily workable and easy to maintain
  • Non-toxic and chemical-free, with a low environmental impact (treatment process)
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JSC's Enduring Commitment to Quality Craftmanship and Innovation

JSC has a proud and long-standing story within the landscape of New Zealand business and manufacturing.

Established in Dunedin in 1900 by Jack Scott, and named J Scott and Company, our pioneering business grew and diversified in line with customer demand, tastes, and trends over the years.

This reputation for excellence that was established over one hundred years ago endures to this day, as does the ability to adapt and evolve, to better serve the needs of customers and to solve the challenges facing the building industry and the environment.

Innovation To Build Tomorrow

JSC is New Zealand’s premium architectural and building solutions partner, proudly producing exceptional and innovative timber products, materials, and finishings that will stand strong today and into the future. As leaders in timber cladding, hardwood decking, interior panelling, timber coatings, thermally modified timbers, and more, JSC is committed to delivering innovation to build tomorrow.

Our passionate and experienced team are dedicated to delivering quality and excellence at every step of the build journey. With a diverse range of technical expertise and capabilities, our collaborative national team is here to ensure the very best outcome for every project. Our commitment to you, is building a future together with innovation, reliability, and partnership.

  • Commitment to high-quality, clear information is our foundation. We prioritise responsiveness to ensure efficient communication and smooth projects.
  • We have the in-house expertise to innovate, educate, and lead the building industry to entirely new possibilities - in the consultation, building process, and the final outcome.
  • JSC is more than a supplier. We become an extension of your team, committed to the project, process, people, and delivery excellence.
  • We prioritise responsiveness as a key element of our partnership, whenever you have questions or require information through RFI's, you can rely on us for prompt and efficient responses.
  • With a rich history spanning over 120 years in New Zealand, JSC has cultivated a reputation as a reliable and trusted partner. Our commitment to quality has stood the test of time, shaping a legacy that speaks for itself
  • Positive sustainable practices and environmental responsibility are fundamental to both the values and the operations of JSC. We are committed to creating a positive and practical impact for future generations, through our work, our products, and our technical innovation.

Please contact us for further information. We look forward to doing business with you.