lunawood

Catawba Hardwoods is proud to carry Lunawood — premium, thermally modified Nordic wood for modern architecture.

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About lunawood

Lunawood ThermoWood® is sustainably crafted in Finland using a patented thermal modification process with just heat and steam — no chemicals. Made from Nordic pine and spruce, Lunawood offers durable, dimensionally stable wood ideal for both interior and exterior applications. Known for its natural beauty and structural integrity, the collection includes tongue and groove cladding, decorative battens, and hidden-fix decking options that bring timeless Nordic warmth to any space.

Lunawood
Inquire About lunawood
Inquire About lunawood

Durability That 
Lasts Decades

Lunawood ThermoWood® is a durable, chemical-free wood ideal for demanding applications where other materials fall short. Its thermal modification process enhances decay resistance, with an exterior service life of up to 30 years*. With low moisture content and no need for regular surface treatments, it’s a safe, non-toxic choice for both homes and public spaces. Its stability and adaptability make it perfect for creating cohesive designs inside and out.

See our branded guide on sizes from Lunawood we carry. 

More About lunawood
More About lunawood

Adaptable Design for Every Surface

Facades

Lunawood is ideal for facades due to its dimensional stability, weather resistance, and natural beauty — all achieved without chemicals through thermal modification. It requires no surface coatings, even in harsh climates, making it a truly sustainable choice that can naturally gray over time if desired.

Landscaping

Lunawood enhances outdoor spaces with its natural beauty, durability, and dimensional stability in all climates. It’s ideal for landscaping elements like pergolas, solar shades, fences, and partition walls, and its lightweight, toxin-free properties make it safe and easy to work with.

Interior

Lunawood Thermowood brings the warmth of Nordic nature indoors with its smooth surface, natural appearance, and subtle scent. Its resin-free and toxin-free properties make it ideal for interiors, including saunas, while also supporting well-being in both public spaces and homes.

Sustainable Cladding That Performs and Lasts

Lunawood ThermoWood® cladding is a smart, low-maintenance choice for exterior applications. Made in Finland using a chemical-free thermal modification process, it offers long-term durability and stability in even the harshest weather conditions. With a clean, modern look and a naturally warm tone, it’s a great fit for builders and architects who want a cladding option that balances performance, beauty, and environmental responsibility.

Durable, Natural Decking for Any Climate

Lunawood ThermoWood® decking is made from Nordic spruce and pine, thermally modified in Finland without the use of chemicals. The result is a clean, stable deck board that holds up in tough climates while offering a refined, natural look. It’s a smart option for builders and homeowners seeking a sustainable decking solution that’s easy to maintain and made to last.

Thermally Modified Siding from the North America Collection

Lunawood’s North America Collection brings together American hardwoods and proven Nordic thermal modification. Made from renewable Ash and Poplar and completely free of chemicals, this siding is built for long-term performance with minimal upkeep. Designed and manufactured in the U.S., it offers a clean, natural look with the durability to handle any climate—making it a reliable choice for modern builds that value both design and sustainability.

Thermally Modified Ash Decking from the North America Collection

Sourced from renewable forests in the U.S. and thermally modified with over two decades of expertise, Lunawood’s North America Collection blends American hardwoods with proven Nordic innovation. The Ash decking is completely chemical-free, offering long-term durability, dimensional stability, and a consistently natural look — even in tough climates. It’s a sustainable choice that delivers on both performance and appearance.

Sustainability That Runs Deep

Lunawood puts environmental responsibility at the core of everything — from sourcing Nordic timber to using a patented, chemical-free thermal modification process. ThermoWood® products are durable, stable, and store up to five times more carbon than is emitted during production. With ambitious goals to cut emissions by 42% by 2030 and reach carbon neutrality by 2035, Lunawood is committed to shaping a more sustainable future.

about lunawood’s sustainability
about lunawood’s sustainability

Species

applications