Cedar vs ThermoWood® Saunas

Cedar vs ThermoWood® Saunas

Two premium woods. Two very different philosophies.

Both Cedar and ThermoWood® are excellent materials for sauna construction—but they shine in different environments and for different types of owners. Understanding the difference helps you choose a sauna that fits your climate, lifestyle, and long-term expectations.


🌲 Cedar Saunas

Classic, aromatic, and naturally beautiful


https://www.divinesaunas.com/cdn/shop/files/Dundalk-Outdoor-Knotty-Cedar-Cabin04_600x.webp?v=1693331449

Cedar has been used in sauna building for generations—and for good reason.

Why people love cedar:

  • Naturally resistant to moisture & decay
  • Warm, rich wood tone that ages gracefully
  • Signature cedar aroma (many people find it calming)
  • Comfortable to the touch — stays cooler than many woods

Best uses for cedar:

  • Indoor saunas
  • Covered outdoor installations
  • Moderate or mixed climates
  • Buyers who love the traditional sauna look & smell

Things to consider:

  • Aroma is strong at first (some love it, some don’t)
  • Can weather and gray outdoors if not protected
  • Requires more care in extreme cold or wet climates

Cedar is ideal if you want:
✔ A classic sauna experience
✔ Natural scent and warmth
✔ A timeless, North American aesthetic


🔥 ThermoWood Saunas

Engineered for durability, stability, and harsh climates

https://bzbcabinsandoutdoors.net/wp-content/uploads/2025/05/BZB_Pure5_1exterior_front-388x388.jpg


ThermoWood is real wood—usually spruce or pine—that’s been heat-treated (not chemically treated) to dramatically improve performance.

Why ThermoWood stands out:

  • Exceptional resistance to moisture, rot, and mold
  • Extremely dimensionally stable (less warping or cracking)
  • Performs exceptionally well in cold climates
  • Low maintenance and long lifespan
  • Rich, dark, modern appearance

Best uses for ThermoWood:

  • Outdoor saunas
  • Cold, snowy, or coastal climates
  • Exposed installations (no roof or enclosure)
  • Buyers focused on longevity & performance

Things to consider:

  • No natural aroma like cedar
  • Darker, more modern aesthetic
  • Often slightly higher upfront cost

ThermoWood is ideal if you want:
✔ Maximum durability
✔ Minimal maintenance
✔ A modern, Nordic-inspired look
✔ Reliable performance in winter conditions


🆚 Quick Comparison

Feature Cedar ThermoWood
Aroma Strong, natural Neutral
Climate Performance Moderate Excellent (cold & wet)
Maintenance Medium Low
Stability Good Excellent
Aesthetic Classic & warm Modern & dark
Outdoor Use Best covered Excellent exposed

✅ Which Should You Choose?

  • Choose Cedar if you value tradition, aroma, and a cozy indoor or covered sauna experience.
  • Choose ThermoWood if you want a worry-free outdoor sauna that laughs at winter, rain, and time.

👉 At Martin Sauna, we carry both—because the best sauna is the one that fits your life, not just your space.

Back to blog