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THERMORY®
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THERMORY®

Thermory: From Estonia to the World, a Story Rooted in the Forest

Founded in Estonia in the late 1990s, Thermory® was built around a deep conviction: wood, a natural and renewable material, deserves to be treated with care. Initially specializing in sauna materials and flooring, it expanded its offering to decking and cladding in the 2000s, before taking a decisive step in 2018 with the merger with Ha-Serv, followed by the acquisition of Finnish company Siparila Oy in 2020. Today, the world’s leading manufacturer of thermally modified wood, Thermory exports 90% of its production to over 50 countries, driven by more than twenty-five years of expertise and an unchanged philosophy: taking care of wood means taking care of forests.

Projects and presence in over 60 countries

Wood from PEFC® certified forests

+ 100,000 m³ treated per year

THERMORY® Products

Wood Species

Thermopine: The Rustic Charm of Nordic Pine Enhanced by Heat

Thermopine stands out with its warm golden-brown hue and characteristic darker knots, a visual signature of Nordic Scots pine after thermal modification. Sourced from Scots pine (Pinus sylvestris) from sustainably managed forests, this intense thermal treatment at 215 °C, using steam and no chemicals, profoundly transforms its molecular structure to give it Class 2 biological durability and exceptional dimensional stability, rivaling noble wood species while retaining the rustic and warm character inherent to pine.

Thermo-Spruce: The Lightness of Nordic Spruce Elevated to a Durable Material

Thermo-spruce stands out with its warm golden-brown hue and fine, regular knots, a visual signature of Scandinavian spruce after thermal modification. Sourced from spruce from sustainably managed forests, this intense thermal treatment at 215 °C, using steam and no chemicals, profoundly transforms its molecular structure to give it Class 1 biological durability and exceptional dimensional stability, making this lightweight and easy-to-work softwood a facade material with remarkable performance.

Thermo-Ash: The Noble Grain of Ash Enhanced by Heat

Thermo-ash stands out with its rich dark brown hue and its distinct and elegant grain, a visual signature of European ash after thermal modification. Sourced from ash from sustainably managed forests, this intense thermal treatment using steam and no chemicals profoundly transforms its molecular structure to give it durability comparable to exotic hardwoods and exceptional dimensional stability, making this dense and textured hardwood a premium ecological alternative to ipe or teak.

Thermory®: The Excellence of Thermally Modified Wood for High-End Decking and Cladding

By relying on a high-temperature treatment process, Thermory transforms carefully selected wood species to create materials that are both high-performing and aesthetic, suitable for the most demanding environments. Internationally recognized, the company supports architectural, residential, and hotel projects on all continents.

At Grad®, we distribute Thermory® ranges dedicated to high-end decking and cladding — appreciated for their natural elegance and long-lasting durability.

Thermory® X Grad®: The Perfect Alliance of Stability and Aesthetics

The dimensional stability of Thermory woods is an ideal condition for our invisible fastening systems: the installed boards maintain their precise alignment, season after season, regardless of climatic exposure. It is this technical reliability combined with the warm aesthetic of thermally treated wood species that has naturally led Thermory to become one of our key partners for premium outdoor projects.

Contact

Hendrik MOORA

Area Manager

hendrik.moora@thermory.com

+3725248823

THERMORY®