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Handcrafted in Estonia, the Norkke S4 Outdoor Sauna brings elegant design and functional wellness into perfect balance. With sweeping floor-to-ceiling corner windows in gray-toned glass, the S4 connects you directly to your natural surroundings while creating an incredibly open and airy feeling inside. Featuring a thermo-aspen interior and a painted CLT exterior, it’s the ideal choice for modern homes or rustic retreats that crave a minimalist architectural statement.

Whether you're upgrading a modern home or adding a spa sanctuary to your cottage, the Norkke S4 is a refined investment in wellness, architecture, and relaxation.

  • Corner Glass Walls – Surrounded by Nature: S4 features two full-height, gray-toned 0.31 in tempered glass panels that meet at the corner, flooding the interior with light and panoramic views. This unique design makes even a compact sauna feel expansive and bright.
  • Compact 6.5×6.5 ft Footprint – Easy Placement Anywhere: With its square 6.5 ft × 6.5 ft footprint, the S4 fits neatly into backyards, decks, or beside pools. You only need six leveled support points to install it—perfect for tight spaces or creative outdoor setups.
  • Efficient CLT Construction – Quick to Heat, Built to Last: The S4 is built with 3 in thick Cross-Laminated Timber walls and ceiling and a 2.4 in black-stained CLT floor. This structure delivers excellent thermal retention, reducing heat-up time and saving energy.
  • Flexible Heating – Choose Your Ritual: Whether you prefer the convenience of electric or the authenticity of wood-fired, S4 is ready for both. Integrated cable channels make installing an electric heater a breeze, or you can opt for a traditional wood-burning stove.
  • Thermo-Aspen Interior – Warm and Refined: Cladding, benches, and backrest are crafted from thermo-aspen, offering a smooth grain, rich tone, and exceptional durability for a premium sauna experience.
  • Painted CLT Exterior – Durable and Modern: The painted CLT exterior finish gives the S4 a crisp, architectural look while protecting it from the elements.
  • Exterior Dimensions: 6.56 ft (L) × 6.56 ft (W) × 8.20 ft (H)
  • Interior Dimensions: 6.04 ft (L) × 6.17 ft (W) × 7.61 ft (H)
  • Seating Capacity: Comfortably seats 3–4 people (ideal for couples or a small family)
  • Wall & Ceiling Panels: 3 in CLT with thermo-aspen cladding
  • Flooring: 2.4 in CLT, black-stained for visual contrast
  • Glass Windows: 0.31 in tempered corner glass walls, gray-toned
  • Lighting: Warm white LED strip behind the backrest for ambient glow
  • Roof Covering: Rubbergard™ EPDM (long-lasting and weatherproof)
  • Frame: Sturdy subframe built from impregnated studs in two sizes: 1.77 × 3.74 in and 3.74 × 5.71 in
  • Exterior Finish: Painted CLT
  • Heating Compatibility: Electric heaters or wood-burning stoves (sold separately)
  • Installation Requirements: 6 leveled support points (4 corners of the sauna + 2 terrace edge supports)

Norkke S4 Sauna

Regular price $19,990.00
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✓ FREE Shipping: This product is offered with our free curbside delivery to the lower 48 states, however certain locations may incur a shipping surcharge. Feel free to contact us for the specifics of your area.

✓ Shipping Time: Currently estimated to ship in 12 weeks. Contact us for a more precise lead time.

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Handcrafted in Estonia, the Norkke S4 Outdoor Sauna brings elegant design and functional wellness into perfect balance. With sweeping floor-to-ceiling corner windows in gray-toned glass, the S4 connects you directly to your natural surroundings while creating an incredibly open and airy feeling inside. Featuring a thermo-aspen interior and a painted CLT exterior, it’s the ideal choice for modern homes or rustic retreats that crave a minimalist architectural statement.

Whether you're upgrading a modern home or adding a spa sanctuary to your cottage, the Norkke S4 is a refined investment in wellness, architecture, and relaxation.

  • Corner Glass Walls – Surrounded by Nature: S4 features two full-height, gray-toned 0.31 in tempered glass panels that meet at the corner, flooding the interior with light and panoramic views. This unique design makes even a compact sauna feel expansive and bright.
  • Compact 6.5×6.5 ft Footprint – Easy Placement Anywhere: With its square 6.5 ft × 6.5 ft footprint, the S4 fits neatly into backyards, decks, or beside pools. You only need six leveled support points to install it—perfect for tight spaces or creative outdoor setups.
  • Efficient CLT Construction – Quick to Heat, Built to Last: The S4 is built with 3 in thick Cross-Laminated Timber walls and ceiling and a 2.4 in black-stained CLT floor. This structure delivers excellent thermal retention, reducing heat-up time and saving energy.
  • Flexible Heating – Choose Your Ritual: Whether you prefer the convenience of electric or the authenticity of wood-fired, S4 is ready for both. Integrated cable channels make installing an electric heater a breeze, or you can opt for a traditional wood-burning stove.
  • Thermo-Aspen Interior – Warm and Refined: Cladding, benches, and backrest are crafted from thermo-aspen, offering a smooth grain, rich tone, and exceptional durability for a premium sauna experience.
  • Painted CLT Exterior – Durable and Modern: The painted CLT exterior finish gives the S4 a crisp, architectural look while protecting it from the elements.
  • Exterior Dimensions: 6.56 ft (L) × 6.56 ft (W) × 8.20 ft (H)
  • Interior Dimensions: 6.04 ft (L) × 6.17 ft (W) × 7.61 ft (H)
  • Seating Capacity: Comfortably seats 3–4 people (ideal for couples or a small family)
  • Wall & Ceiling Panels: 3 in CLT with thermo-aspen cladding
  • Flooring: 2.4 in CLT, black-stained for visual contrast
  • Glass Windows: 0.31 in tempered corner glass walls, gray-toned
  • Lighting: Warm white LED strip behind the backrest for ambient glow
  • Roof Covering: Rubbergard™ EPDM (long-lasting and weatherproof)
  • Frame: Sturdy subframe built from impregnated studs in two sizes: 1.77 × 3.74 in and 3.74 × 5.71 in
  • Exterior Finish: Painted CLT
  • Heating Compatibility: Electric heaters or wood-burning stoves (sold separately)
  • Installation Requirements: 6 leveled support points (4 corners of the sauna + 2 terrace edge supports)