Thermory Square Sauna No. 40 (With Wide Back Window)

Thermory Square Sauna No. 40 (With Wide Back Window)


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SKU Square40 Categories ,

Embrace the epitome of relaxation with Thermory’s Natural Square Saunas. Engineered from thermally modified Nordic spruce, this contemporary square design with its elegant, curved contours offers more than just a sauna—it provides a panoramic retreat right in your backyard. The full-front tempered glass not only enchants with breathtaking views but also invites natural light to blend seamlessly with the warmth within, creating an unparalleled serene ambiance. Ideal for extending your entertainment space, the Natural Square Saunas are meticulously designed to deliver both supreme comfort and long-lasting durability.



  • Spacious Interior: Enjoy ample room with seven feet of headroom and deep benches designed for either sitting or fully reclining.
  • Durability and Stability: Crafted from thermally modified Nordic spruce, known for its resistance to shrinkage, rot, and decay, ensuring a lasting investment.
  • Comfort in Design: Unlike traditional cedar that can roughen over time, the smooth, milled surface of Nordic softwood remains pleasantly cool and gentle to the touch.
  • Panoramic Views: The full-front tempered glass window enriches your sauna experience with expansive views and natural lighting.
  • Weather-Resistant: Comes equipped with a rain jacket, making it ready for all-weather conditions.



  • Model: Square40
  • Dimensions: Length 8.24 ft, Width 6.90 ft, Height 7.21 ft
  • Volume: 241 cubic feet
  • Window Size: 6.3′ x 3.2′
  • Heater: 11KW
  • Back Bench: Length 6.5 ft, Width 1.61 ft
  • Side Bench: Length 4.30 ft, Width 1.61 ft
  • Board Thickness: 1.57 inches


Resources:  Thermory Square Sauna No. 40 Installation Guide


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