Pieksäwood Thermo-treated Black Alder Sauna Bench Board 28 × 120 × 3000 mm

Thermo-treated Black Alder sauna bench board by Pieksäwood is a premium Finnish wood product designed specifically for sauna benches, seating platforms and other sauna interior applications. Its rich dark brown colour, smooth knot-free surface and low heat conductivity make it an excellent choice for comfortable and elegant sauna seating.

Key Benefits

• Thermo-treated Black Alder with a rich dark brown colour

• Knot-free and resin-free surface

• Specifically suitable for sauna benches and seating

• Comfortable to touch and does not become excessively hot

• Excellent thermal insulation properties

• Improved resistance to moisture and decay

• Stable material suitable for sauna conditions

• Smooth, pleasant surface for direct skin contact

• Elegant dark appearance suitable for modern sauna interiors

• Manufactured in Finland

Pieksäwood — Finnish Sauna Wood Expertise

Pieksäwood is a Finnish family-owned wood manufacturer with more than 70 years of experience in wood processing and manufacturing.

Based in Finland, Pieksäwood has extensive experience producing high-quality wood products for saunas and sauna interiors, including bench boards, wall panels and other sauna components.

The company combines traditional Finnish woodworking expertise with modern manufacturing technology. Pieksäwood also carries out its own heat treatment, allowing careful control over the quality and characteristics of its thermo-treated wood products.

For sauna projects, this means choosing wood from a manufacturer with a long history and specialised experience in Finnish sauna materials.

Thermo-Treated Black Alder

During heat treatment, the Black Alder is treated throughout the wood to develop its distinctive dark brown colour and enhance its natural properties.

The treatment improves the wood's resistance to moisture and decay while also improving its thermal insulation characteristics.

These properties make thermo-treated Black Alder particularly suitable for sauna benches, where the material needs to remain comfortable against the skin while withstanding regular changes in temperature and humidity.

The knot-free and resin-free surface provides a clean, elegant appearance and a pleasant feel.

Sauna Bench Dimensions

The board is supplied in a 28 × 120 × 3000 mm format, making it suitable for constructing sauna benches, backrest elements, seating platforms and other custom sauna components.

The 28 mm thickness provides a solid and durable construction for sauna seating while the 120 mm width allows flexible bench design and installation.

The 3000 mm length is suitable for both residential and larger custom sauna projects and can be cut to the required dimensions on site.

Suitable for Sauna Benches and Seating

Thermo-treated Black Alder is particularly well suited to surfaces that come into direct contact with the body.

It can be used for:

• Sauna benches

• Upper and lower seating levels

• Corner benches

• Custom sauna seating

• Backrest elements

• Footrests

• Sauna platforms

• Other sauna interior components

Its dark brown colour works especially well in contemporary sauna designs and can be combined with lighter woods, stone, glass and other natural materials.

Surface Treatment

For sauna benches, additional surface treatment is optional.

If treatment is desired, we recommend using a sauna-specific paraffin oil or sauna wax suitable for surfaces that come into contact with the skin.

A suitable treatment can help protect the wood surface and maintain or enhance the rich brown colour of thermo-treated Black Alder.

Always ensure that the selected treatment product is specifically suitable for sauna interiors and follow the manufacturer's instructions.

Product Specifications

Why Choose Pieksäwood Thermo Black Alder?

Pieksäwood combines Finnish wood craftsmanship, long-term experience and modern wood processing technology.

This thermo-treated Black Alder bench board offers a combination of:

• Finnish manufacturing

• More than 70 years of wood processing experience

• Specialist experience in sauna materials

• Knot-free and resin-free surface

• Comfortable temperature characteristics

• Improved moisture resistance

• Rich dark brown colour

• High-quality finish

• Suitable dimensions for custom sauna construction

The dark, natural appearance of thermo-treated Black Alder makes it an excellent choice for contemporary sauna interiors, from private home saunas to premium wellness and hospitality projects.

Looking for inspiration for your sauna project? Explore our sauna projects to see examples of sauna interiors and completed projects.

Natural Wood Variation

Wood is a natural material, so each board may vary slightly in colour, grain and pattern. These natural variations are part of the character of genuine wood.

The appearance of thermo-treated Black Alder may also vary depending on lighting conditions and the surrounding sauna materials.

Product images are shown for reference only.

If you need to confirm the exact colour and texture before ordering, sample pieces can be requested.

Certificates

CE · PEFC · The Association for Finnish Work

Package — 4 pcs