Dark Thermo Alder Sauna Wood

Dark Thermo Alder is a premium sauna wood with a deep chocolate-brown tone, perfect for modern, meditative sauna aesthetics. Intensely thermally modified for exceptional durability, water resistance, and stability, it remains cool to the touch, making it an excellent choice for sauna benches and cladding. Sustainably sourced from Nordic and Baltic forests, this knot- and resin-free timber adds a touch of luxury to any sauna.

Dark Thermo Alder - A Rich, Elegant Sauna Timber

Dark Thermo Alder is a top-tier choice for those seeking a dark, sophisticated sauna interior. Created through an intensive thermal modification process at 215°C, this sauna wood develops a rich, deep brown colour and a distinctive toasted aroma. The process
enhances its structural integrity, making it rot-resistant, dimensionally stable, and incredibly long-lasting—perfect for frequent-use saunas.

This low-density wood stays comfortable to sit on,
as it does not overheat. Its smooth, straight grain offers an elegant and contemporary look, while its high durability ensures it withstands moisture and heat fluctuations over time.

Why Choose Dark Thermo Alder for Your Sauna?

  • Rich, Dark Colour - A luxurious chocolate-brown hue enhances modern sauna aesthetics.
  • Comfortable & Safe - Stays cool to the touch, making it perfect for sauna benches.
  • Highly Durable - Thermo-treatment ensure rot resistance & longevity.
  • No Knots or Resin - Provides a clean, uniform look with no risk of resin weeping.
  • Distinctive Aroma - A strong, toasted scent adds to the authentic sauna experience.

Dark Thermo Alder Sauna Wood Products

  • Sauna Cladding & Panelling (Tongue & Groove)
  • Sauna Bench Boards
  • Sauna Mouldings

Recommended Wastage Allowance

We recommend a 20-25% wastage allowance when ordering to account for potential cutting and installation losses.

Everything You Need