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The Leil Saunas Black Cube Outdoor Sauna is a striking 4-person wellness retreat that combines bold, modern design with authentic Nordic craftsmanship. Built from durable ThermoWood® and featuring thick Thermo-pine back walls, it delivers exceptional insulation, structural strength, and long-lasting performance. Its dual-level L-shaped alder benches, each approximately 23.6" wide, provide ergonomic seating and full reclining comfort, while the private black-tinted tempered glass front enhances seclusion and style. Thoughtful design elements, including optimized side-mounted heater placement, advanced under-bench and rear ventilation, and foot-level warmth circulation, create a consistently comfortable and oxygen-rich sauna environment. The shingled roof with preinstalled gutters, Nerostep anti-slip mat, and included interior/exterior protection kit ensure resilience in all weather. Optional enhancements such as half-panoramic windows, LED lighting, or electric and wood-fired heaters allow customization, making the Black Cube a versatile, premium outdoor sauna that elevates daily wellness, social enjoyment, and aesthetic appeal for any backyard or terrace.

  • Modern Cube Design with Shingled Roof – Striking cube-style architecture with durable shingles provides contemporary aesthetics while protecting the sauna from weather, ensuring long-lasting outdoor performance and visual appeal.
  • Dual-Level L-Shaped Bench Layout – Ergonomic upper and lower benches with ≈23.6" width allow full reclining and social interaction, maximizing comfort and seating flexibility for multiple users.
  • Private Black-Tinted Tempered Glass – Front wall privacy glass enhances seclusion, retains heat efficiently, and adds a bold, modern look that complements outdoor environments.
  • Optimized Ventilation & Foot-Level Warmth – Fresh air intake under the heater and exhaust behind benches maintain oxygen-rich airflow and consistent heat distribution, including at foot level, for a comfortable and safe sauna session.
  • Thicker Thermo-Pine Back Wall – Extra-thick back wall improves insulation, structural strength, and sound dampening, enhancing durability and comfort in all weather conditions.
  • Spacious Interior & Concealed Bench Skirt – Approximately 10% larger than typical cube saunas, the open layout and hidden bench skirt create a clean, breathable interior for enhanced relaxation and usability.
  • Included Safety & Protection Features – Nerostep anti-slip mat, preinstalled roof gutters, and interior/exterior paint and varnish kits provide safety, ease of maintenance, and long-term moisture protection for reliable performance.
  • Optional Enhancements – Add half-panoramic side windows, dimmable LED lighting, or electric/wood-fired heaters to personalize ambiance, functionality, and overall sauna experience.
  • MPN: Not specified
  • Compatibility: Residential outdoor sauna, 4-person use
  • Part Type: Outdoor Sauna
  • What’s Included: Sauna unit, dual-level L-shaped alder benches, tempered black glass front, shingled roof with preinstalled metal gutters, bench skirt, Nerostep anti-slip mat, interior/exterior protection kit
  • Capacity: 4 persons
  • Room Size: 201.7 cu ft
  • Dimensions (External): 85.8" W × 65.4" D × 87.4" H
  • Dimensions (Internal): 78.7" W × 54.3" D × 82.7" H
  • Wall Thickness: 1.57" ThermoWood®, ≈1.7" Thermo-pine back wall
  • Bench Material: Alder
  • Glass Type: 0.3" thick tempered black glass
  • Roof: Shingled roof with preinstalled metal gutters
  • Ventilation: 3–4 vent openings, under-bench intake and rear exhaust
  • Bench Width: ≈ 23.6"
  • Lighting: Dimmable LED system
  • Weight: 1,653 lbs
  • Optional Enhancements: Half-panoramic window, LED lighting kit, electric or wood-fired heater
  • Use Case: Homeowners seeking a private luxury outdoor retreat, wellness spaces, Airbnb properties, boutique spas
  • Country of Origin: Estonia
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Black Cube Outdoor Sauna 4-Person | Leil Saunas

SKU: LEI-BlackCube
Regular price $13,999.00 $7,990.00 43% off
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The Leil Saunas Black Cube Outdoor Sauna is a striking 4-person wellness retreat that combines bold, modern design with authentic Nordic craftsmanship. Built from durable ThermoWood® and featuring thick Thermo-pine back walls, it delivers exceptional insulation, structural strength, and long-lasting performance. Its dual-level L-shaped alder benches, each approximately 23.6" wide, provide ergonomic seating and full reclining comfort, while the private black-tinted tempered glass front enhances seclusion and style. Thoughtful design elements, including optimized side-mounted heater placement, advanced under-bench and rear ventilation, and foot-level warmth circulation, create a consistently comfortable and oxygen-rich sauna environment. The shingled roof with preinstalled gutters, Nerostep anti-slip mat, and included interior/exterior protection kit ensure resilience in all weather. Optional enhancements such as half-panoramic windows, LED lighting, or electric and wood-fired heaters allow customization, making the Black Cube a versatile, premium outdoor sauna that elevates daily wellness, social enjoyment, and aesthetic appeal for any backyard or terrace.

  • Modern Cube Design with Shingled Roof – Striking cube-style architecture with durable shingles provides contemporary aesthetics while protecting the sauna from weather, ensuring long-lasting outdoor performance and visual appeal.
  • Dual-Level L-Shaped Bench Layout – Ergonomic upper and lower benches with ≈23.6" width allow full reclining and social interaction, maximizing comfort and seating flexibility for multiple users.
  • Private Black-Tinted Tempered Glass – Front wall privacy glass enhances seclusion, retains heat efficiently, and adds a bold, modern look that complements outdoor environments.
  • Optimized Ventilation & Foot-Level Warmth – Fresh air intake under the heater and exhaust behind benches maintain oxygen-rich airflow and consistent heat distribution, including at foot level, for a comfortable and safe sauna session.
  • Thicker Thermo-Pine Back Wall – Extra-thick back wall improves insulation, structural strength, and sound dampening, enhancing durability and comfort in all weather conditions.
  • Spacious Interior & Concealed Bench Skirt – Approximately 10% larger than typical cube saunas, the open layout and hidden bench skirt create a clean, breathable interior for enhanced relaxation and usability.
  • Included Safety & Protection Features – Nerostep anti-slip mat, preinstalled roof gutters, and interior/exterior paint and varnish kits provide safety, ease of maintenance, and long-term moisture protection for reliable performance.
  • Optional Enhancements – Add half-panoramic side windows, dimmable LED lighting, or electric/wood-fired heaters to personalize ambiance, functionality, and overall sauna experience.
  • MPN: Not specified
  • Compatibility: Residential outdoor sauna, 4-person use
  • Part Type: Outdoor Sauna
  • What’s Included: Sauna unit, dual-level L-shaped alder benches, tempered black glass front, shingled roof with preinstalled metal gutters, bench skirt, Nerostep anti-slip mat, interior/exterior protection kit
  • Capacity: 4 persons
  • Room Size: 201.7 cu ft
  • Dimensions (External): 85.8" W × 65.4" D × 87.4" H
  • Dimensions (Internal): 78.7" W × 54.3" D × 82.7" H
  • Wall Thickness: 1.57" ThermoWood®, ≈1.7" Thermo-pine back wall
  • Bench Material: Alder
  • Glass Type: 0.3" thick tempered black glass
  • Roof: Shingled roof with preinstalled metal gutters
  • Ventilation: 3–4 vent openings, under-bench intake and rear exhaust
  • Bench Width: ≈ 23.6"
  • Lighting: Dimmable LED system
  • Weight: 1,653 lbs
  • Optional Enhancements: Half-panoramic window, LED lighting kit, electric or wood-fired heater
  • Use Case: Homeowners seeking a private luxury outdoor retreat, wellness spaces, Airbnb properties, boutique spas
  • Country of Origin: Estonia