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The Luik Benchmark Ash Outdoor Sauna is a refined outdoor retreat designed for 4 to 5 people, combining Scandinavian-inspired architecture, premium thermally modified wood, and durable outdoor performance. Named after the Estonian word for swan, Luik reflects quiet grace, effortless calm, and a restorative sauna ritual.

Finished in pre-oiled Benchmark Ash with a clean vertical exterior profile, the Luik Ash creates a bold, sophisticated focal point in any backyard wellness space. Inside, smooth thermally modified aspen surrounds the sauna, including the walls and benches, for a sleek, cohesive interior with a warm natural feel.

Built with cross-laminated timber (CLT) subpanels and extra-thick 5.59-inch walls, the Luik is designed for strength, heat retention, and lasting stability in changing outdoor conditions. Its tinted tempered-glass front brings natural light into the sauna while maintaining privacy, and integrated dimmable LED lighting creates a calm, spa-like atmosphere from day into evening.

Delivered as a modular flat-pack sauna, the Luik Ash is designed for DIY-friendly weekend assembly with a few helpers and no hoisting equipment required.

  • Sophisticated Benchmark Ash Exterior: Finished in pre-oiled Benchmark Ash with a clean vertical profile, the Luik Ash adds a bold, modern architectural presence to outdoor wellness spaces.
  • Comfortable 4–5 Person Capacity: The spacious interior comfortably accommodates up to five people, making it ideal for solo rituals, couples, families, and small-group sauna sessions.
  • Thermo-Aspen Interior: Smooth thermally modified aspen surrounds the interior, including the walls and benches, for a warm, refined, and cohesive sauna environment.
  • Tinted Tempered Glass Front: The tinted tempered-glass front welcomes natural light while maintaining a private, modern atmosphere. The door includes a magnet and lock for secure closure.
  • Extra-Thick CLT Construction: Cross-laminated timber subpanels and 5.59-inch-thick walls provide added strength, heat retention, and sound reduction for dependable outdoor performance.
  • Integrated Dimmable LED Lighting: Built-in dimmable LED lighting creates a soft, calming glow that enhances relaxation and adds a premium spa-like atmosphere.
  • Thermally Modified Wood Performance: Thermory’s chemical-free heat-and-steam modification process creates stable, weather-resistant wood with 25+ years of proven rot resistance.
  • DIY-Friendly Modular Assembly: Delivered as a flat-pack modular sauna, the Luik is designed for weekend installation with a few helpers and no hoisting equipment required.
  • Pre-Oiled Finish That Ages Beautifully: The Benchmark Ash exterior arrives pre-oiled and can naturally develop a distinguished silver patina over time or be maintained with UV-protective oil.
  • Model: Luik – Benchmark Ash
  • Capacity: 4–5 Persons
  • Overall Dimensions: 7.34′ L × 7.20′ W × 7.96′ H (with roof)
  • Interior Height: 6.46′
  • Sauna Volume: 260 cu. ft.
  • Exterior Cladding: Pre-Oiled Benchmark Ash with Custom Vertical Profile
  • Wood Treatment: Thermally Modified Using a Chemical-Free Heat and Steam Process
  • Interior: Thermally Modified Aspen Walls and Benches with Smooth, Splinter-Free Milling
  • Construction: Cross-Laminated Timber (CLT) Subpanels
  • Wall Thickness: 5.59″
  • Front Glass: Tinted Tempered Glass
  • Door: Magnetic Closure with Lock
  • Lighting: Integrated Dimmable LED Lighting
  • Heater Compatibility: Designed for Electric Sauna Heaters; Homecraft and HUUM Recommended
  • Assembly: Modular Flat-Pack Design for DIY Weekend Installation with a Few Helpers
  • Weather Performance: Weather-Resistant and Dimensionally Stable Through Changing Conditions
  • Rot Resistance: 25+ Years of Proven Rot Resistance
  • Finish: Pre-Oiled; Ages Naturally to Silver or Can Be Maintained with UV-Protective Oil
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Luik Ash Outdoor Sauna | Thermory

SKU: THR-Luik-Ash
Regular price $36,975.00
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The Luik Benchmark Ash Outdoor Sauna is a refined outdoor retreat designed for 4 to 5 people, combining Scandinavian-inspired architecture, premium thermally modified wood, and durable outdoor performance. Named after the Estonian word for swan, Luik reflects quiet grace, effortless calm, and a restorative sauna ritual.

Finished in pre-oiled Benchmark Ash with a clean vertical exterior profile, the Luik Ash creates a bold, sophisticated focal point in any backyard wellness space. Inside, smooth thermally modified aspen surrounds the sauna, including the walls and benches, for a sleek, cohesive interior with a warm natural feel.

Built with cross-laminated timber (CLT) subpanels and extra-thick 5.59-inch walls, the Luik is designed for strength, heat retention, and lasting stability in changing outdoor conditions. Its tinted tempered-glass front brings natural light into the sauna while maintaining privacy, and integrated dimmable LED lighting creates a calm, spa-like atmosphere from day into evening.

Delivered as a modular flat-pack sauna, the Luik Ash is designed for DIY-friendly weekend assembly with a few helpers and no hoisting equipment required.

  • Sophisticated Benchmark Ash Exterior: Finished in pre-oiled Benchmark Ash with a clean vertical profile, the Luik Ash adds a bold, modern architectural presence to outdoor wellness spaces.
  • Comfortable 4–5 Person Capacity: The spacious interior comfortably accommodates up to five people, making it ideal for solo rituals, couples, families, and small-group sauna sessions.
  • Thermo-Aspen Interior: Smooth thermally modified aspen surrounds the interior, including the walls and benches, for a warm, refined, and cohesive sauna environment.
  • Tinted Tempered Glass Front: The tinted tempered-glass front welcomes natural light while maintaining a private, modern atmosphere. The door includes a magnet and lock for secure closure.
  • Extra-Thick CLT Construction: Cross-laminated timber subpanels and 5.59-inch-thick walls provide added strength, heat retention, and sound reduction for dependable outdoor performance.
  • Integrated Dimmable LED Lighting: Built-in dimmable LED lighting creates a soft, calming glow that enhances relaxation and adds a premium spa-like atmosphere.
  • Thermally Modified Wood Performance: Thermory’s chemical-free heat-and-steam modification process creates stable, weather-resistant wood with 25+ years of proven rot resistance.
  • DIY-Friendly Modular Assembly: Delivered as a flat-pack modular sauna, the Luik is designed for weekend installation with a few helpers and no hoisting equipment required.
  • Pre-Oiled Finish That Ages Beautifully: The Benchmark Ash exterior arrives pre-oiled and can naturally develop a distinguished silver patina over time or be maintained with UV-protective oil.
  • Model: Luik – Benchmark Ash
  • Capacity: 4–5 Persons
  • Overall Dimensions: 7.34′ L × 7.20′ W × 7.96′ H (with roof)
  • Interior Height: 6.46′
  • Sauna Volume: 260 cu. ft.
  • Exterior Cladding: Pre-Oiled Benchmark Ash with Custom Vertical Profile
  • Wood Treatment: Thermally Modified Using a Chemical-Free Heat and Steam Process
  • Interior: Thermally Modified Aspen Walls and Benches with Smooth, Splinter-Free Milling
  • Construction: Cross-Laminated Timber (CLT) Subpanels
  • Wall Thickness: 5.59″
  • Front Glass: Tinted Tempered Glass
  • Door: Magnetic Closure with Lock
  • Lighting: Integrated Dimmable LED Lighting
  • Heater Compatibility: Designed for Electric Sauna Heaters; Homecraft and HUUM Recommended
  • Assembly: Modular Flat-Pack Design for DIY Weekend Installation with a Few Helpers
  • Weather Performance: Weather-Resistant and Dimensionally Stable Through Changing Conditions
  • Rot Resistance: 25+ Years of Proven Rot Resistance
  • Finish: Pre-Oiled; Ages Naturally to Silver or Can Be Maintained with UV-Protective Oil