HelsinkiWood Pine Thermo Groove5 26×117

Spruce lumber is used in various products due to its strength, durability, and versatility.  It's known for its straight grain, light color, relatively uniform texture and ease of workability, making it a popular choice for structural applications. Furthermore, due to its good resistance to decay, it is a common material also in exterior applications, such as siding and cladding.

Thermo-treatment is a natural way of enhancing wood that does not use chemicals or other additives, only heat and water vapor. Therefore, the wood is well suited to living spaces and the production process itself is environmentally friendly, without harmful waste.

Helsinki Wood thermowood is thermo-treated using the high-tech WDE Maspell patented solution, where the wood is treated under vacuum at 190-230 °C without the addition of chemicals. The closed environment ensures a well-controlled, stable and high-quality processing process that is more water and energy efficient and safer than conventional equipment.

During thermo-treatment, wood acquires many valuable properties:

• Wood becomes more stable, durable and wear-resistant and deforms minimally.

• The wood becomes lighter and easier to handle.

• The moisture content of the wood decreases, as does the thermal conductivity, thanks to which it is especially suitable for hot and humid rooms.

• Thermo-treatment furnishes wood with a beautiful brown colour and emphasises its texture. Depending on the degree of treatment and the type of wood, the shade may be darker or lighter. 

Did you know: Spruce wood is highly prized for its use in making the soundboards of musical instruments, particularly acoustic guitars, violins, and pianos. The lightweight and resonant properties of spruce make it ideal for producing clear and vibrant tones.