Unfinished cedar wood

by Jevgenij Bochok on July 25, 2025

When it comes to sauna construction, the choice of wood plays a critical role in both aesthetics and functionality. Unfinished cedar wood stands out as one of the most popular materials due to its natural properties and ability to thrive in high-heat, high-humidity environments. With its appealing scent, resistance to decay, and thermal efficiency, unfinished cedar wood is a top choice for creating a comfortable and long-lasting sauna interior. This article explores the unique benefits and considerations of using unfinished cedar in sauna design.

What Is Unfinished Cedar Wood?

Unfinished cedar wood refers to cedar that has not been treated with stains, paints, or sealants. In saunas, this raw form of wood is favored because it remains breathable and maintains its natural ability to absorb and release moisture. Without chemical finishes, unfinished cedar allows heat and humidity to flow through the room without trapping toxins or odors, creating a cleaner and more organic sauna experience.

Benefits of Using Cedar in Saunas

Unfinished cedar is highly valued for a variety of reasons, especially in sauna construction:

  • Heat and Moisture Resistance: Cedar naturally withstands high temperatures and humidity without warping or cracking.
  • Antimicrobial Properties: Its natural oils inhibit mold and bacterial growth, making it a hygienic option.
  • Comfortable Surface: Cedar stays cool to the touch, reducing the risk of burns during sauna use.
  • Pleasant Aroma: The wood releases a gentle, aromatic scent that enhances relaxation and the sensory experience.
  • Longevity: Even in harsh sauna conditions, cedar is incredibly durable and resistant to decay.
These properties make cedar a functional and luxurious addition to any sauna space.

Why Unfinished Wood Is Preferred

Finishes like varnishes and stains can break down in high-heat environments, releasing harmful fumes and altering the sauna's atmosphere. Unfinished wood avoids these risks entirely. More importantly, it allows the wood to naturally absorb excess moisture from the air, helping to regulate humidity and improve air quality within the sauna. For users sensitive to chemicals or seeking a fully natural experience, unfinished cedar provides a clean, toxin-free solution.

Maintenance and Care Tips

Even though unfinished cedar is low maintenance, some care is required to keep it in top condition:

  • Wipe down surfaces regularly with a damp cloth to remove sweat and residue.
  • Use a soft-bristled brush to gently clean slats and crevices.
  • Allow the sauna to air out after each use to prevent mold or mildew.
  • Avoid harsh cleaning products that could penetrate the wood and leave behind chemical traces.
  • If discoloration occurs, lightly sanding the surface can restore its appearance.
Proper care ensures that the wood remains fresh and functional for many years of sauna enjoyment.

Conclusion

Unfinished cedar wood offers unmatched natural beauty and functionality in sauna construction. Its resistance to heat, moisture, and microbes—along with its warm aroma—makes it an ideal material for creating a soothing and healthy sauna environment. Whether you're building a traditional sauna or upgrading an existing one, choosing unfinished cedar is a decision that enhances both performance and comfort. With minimal maintenance and maximum benefits, it's easy to see why this wood remains a top favorite among sauna enthusiasts.

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