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When it comes to building your ultimate sauna experience, wood selection is one of the most important decisions. We pride ourselves in providing only premium quality lumber in curated wood types that are most suitable for the sauna environment, ensuring superior looks and lasting durability. Most of our Design Lines can be made with any wood of your choice.

Clear Cedar

The timeless classic of luxury sauna woods in America.

  • Warm, reddish-brown tones deepen beautifully with age, creating a rich, inviting atmosphere.
  • Naturally aromatic, releasing a soothing, earthy scent when heated - enhancing the sauna experience.
  • High resistance to decay, mold, and moisture, making it exceptionally durable in humid conditions.
  • Lightweight yet strong, with excellent dimensional stability for long-term structural integrity.
  • Soft, fine grain provides a smooth, comfortable feel on skin.

Aspen

The emperor of sauna woods, especially revered in Europe.

  • Insulates well and stays cooler to the touch at high sauna temperatures.
  • Pale, uniform color that resists discoloration and graying in humid conditions.
  • Naturally resin-free, contains almost no allergens or aromatic oils, so ideal for people with respiratory sensitivities.
  • Excellent dimensional stability, doesn’t warp or crack easily under sauna conditions.
  • Very smooth luxurious texture.

Thermo Spruce

The modern powerhouse of sauna woods, loved for its performance and sustainability.

  • Striking caramel-brown tones with a rich, natural grain pattern that adds depth and warmth to any sauna interior.
  • Thermal modification enhances moisture resistance and stability, dramatically reducing warping, shrinking, or cracking.
  • Low resin content and neutral scent make it comfortable for sensitive users, even in high-heat environments.
  • Lightweight yet durable, offering long-term reliability without sacrificing visual appeal.
  • Silky-smooth surface with a naturally matte finish—both elegant and skin-friendly.

Select Tight Knot Cedar

The rustic soul of sauna woods, celebrated for its character and warmth, a budget friendly alternative to clear cedar.

  • Distinctive knot patterns and rich reddish hues bring natural charm and visual texture to the sauna interior.
  • Naturally aromatic with a bold, invigorating scent that deepens when heated.
  • Inherently resistant to rot, moisture, and insects.
  • Good dimensional stability and light weight.
  • Smooth to the touch with a more organic, rugged feel—perfect for those who favor a traditional, cabin-style aesthetic.

Hemlock

The more budget friendly option to achieve a similar look to aspen, valued for its clean look and reliable performance.

  • Light, creamy-tan tones with a uniform grain offer a bright, minimalist aesthetic that complements modern sauna designs.
  • Low resin content and a subtle, non-intrusive scent make it a comfortable choice for scent-sensitive users.
  • Stable and consistent in high-heat, humid environments when properly dried and maintained.
  • Harder and denser than many softwoods, providing solid durability for walls, ceilings, and trim.
  • Fine, straight grain allows for a smooth finish and clean lines—ideal for crisp architectural detailing.

Thermo Aspen

The contemporary aesthetic favorite, combining modern elegance with peak thermal performance.

  • Soft caramel and honeyed tones with a clean, uniform grain offer a warm yet contemporary aesthetic.
  • Naturally resin-free and low in scent, making it perfect for users with sensitivities or essential oil use.
  • Thermal modification drastically improves resistance to moisture, decay, and heat deformation—ideal for extreme sauna conditions.
  • Excellent dimensional stability and a smooth, satiny finish provide both visual refinement and tactile comfort.
  • This is one of the most expensive woods we carry, and for a reason.

Fluted Natural Aspen

A bright, knot-free hardwood with a sculpted fluted profile and clean Scandinavian appeal.

  • Deep vertical fluting creates striking shadow lines and a refined architectural appearance for sauna walls and/or ceilings.
  • Naturally creamy white to pale blonde tones with a smooth, knot-free surface brighten the space while maintaining a clean, minimalist aesthetic.
  • Resin-free, odor-neutral, and exceptionally comfortable to the touch, making it ideal for high-heat sauna environments.
  • Aspen naturally stays cooler than many other wood species, providing lasting comfort and a smooth, splinter-resistant finish.
  • Sustainably sourced and crafted without chemicals, delivering beauty, comfort, and reliable performance.

Fluted Thermo Aspen

A premium thermo-treated hardwood with rich caramel tones and a refined fluted profile.

  • Precision-milled vertical fluting adds depth, texture, and dramatic light play to sauna walls and/or ceilings.
  • Thermal modification transforms the wood into warm golden-brown and caramel hues while enhancing its natural elegance.
  • Resin-free, odor-neutral, and exceptionally smooth, offering outstanding comfort even during prolonged sauna sessions.
  • The thermal treatment significantly improves dimensional stability, moisture resistance, and long-term durability in demanding sauna environments.
  • Sustainably sourced and modified using only heat and steam, creating a luxurious, low-maintenance finish with exceptional performance.

Thermo Pine

A thermo-treated softwood with warm amber tones and distinctive natural grain.

  • Thermal modification deepens the wood into warm golden-brown and caramel hues while highlighting its natural grain and character.
  • Enhanced dimensional stability helps minimize expansion, contraction, and warping in high-heat sauna environments.
  • Naturally resistant to moisture and decay through a chemical-free heat and steam treatment process.
  • Comfortable to the touch with a smooth, refined surface that performs beautifully through repeated heating and cooling cycles.
  • Sustainably sourced and thermally modified using only heat and steam, creating an attractive, durable, and low-maintenance sauna finish.

Radiata Pine

A versatile softwood with warm golden tones and bold, natural grain patterns.

  • Distinctive cathedral grain and naturally varied patterns create a timeless, authentic wood appearance.
  • Warm golden hues brighten the sauna while complementing both traditional and contemporary designs.
  • Smoothly finished for comfort, providing a pleasant surface for sauna walls and ceilings.
  • Lightweight yet durable, making it an excellent choice for beautifully crafted interior sauna applications.
  • Sustainably sourced to provide a naturally elegant, renewable wood option that celebrates the unique beauty of real timber.

Trio Thermo Pine

A modern thermo-treated Nordic pine with bold texture and lasting performance.

  • Sculpted 3D profile adds depth and clean lines to sauna walls and/or ceilings.
  • Rich caramel tone from thermal modification.
  • Resin-free, non-toxic, and dimensionally stable—perfect for high-heat, humid spaces.
  • Smooth, planed finish with visible knots for natural character and comfort.
  • Sustainably sourced and chemical-free (as are all of our woods), designed for both indoor and outdoor use.

Thermo Magnolia

The refined newcomer in sauna design, prized for its elegance and high-performance thermal treatment.

  • No other wood has such a subtle brown tone with exquisite striping that delivers a sleek, classic aesthetic.
  • Comes in wider boards than any of the other sauna woods, offering a timeless look.
  • Thermal modification enhances durability, dramatically improving resistance to moisture and warping.
  • Exceptional dimensional stability with a smooth, velvety texture—ideal for both wall cladding and bench surfaces.

Black Thermo Spruce

A bold, modern take on thermo spruce.

  • Finished with black wax for a sleek matte appearance that highlights the natural grain. Ideal for contrast or full dark interiors.
  • Low resin content and neutral scent make it comfortable for sensitive users, even in high-heat environments.
  • Thermal treatment boosts durability, moisture resistance, and dimensional stability in sauna conditions.
  • Low-resin, non-toxic, and comfortable to the touch—even in high-heat environments.