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Jacob K.

Everything I've bought from this brand just works. The grips save my hands, the vest feels solid, the socks and gear hold up no matter how hard I train. Durable, comfortable, and built for real workouts.

loved by 10,000+ customers

Custom Indoor Sauna Room - 7' x 7' x 8' - Finnish Sauna Builders

$ 10,060.30
$ 10,060.30
Trusted by Top Fitness Athletes
Engineered for performance, Built to last
Designed for funtional fitness
Wood type
Accessory Packages
Heater

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Description

Transform your home into a wellness retreat with the Finnish Sauna Builders Custom Indoor Sauna Room Kit. This complete sauna package includes everything you need to build an authentic Finnish sauna experience, whether you're a DIY enthusiast or a professional contractor.

Complete Sauna Kit - Ready for Your Space

Our custom indoor sauna kit arrives with all interior components precisely cut and tailored to your room dimensions. Simply provide the framing, insulation, electrical wiring, and exterior wall covering—we supply the rest. Building your dream sauna has never been easier or more affordable.

Premium Wood Options - Choose Your Perfect Finish

Select from three exceptional wood types, each offering distinctive benefits for your sauna interior:

Grade A Knot-Free Western Red Cedar

The classic choice for sauna enthusiasts. This premium softwood remains comfortably cool to the touch during sauna sessions and naturally resists moisture and decay. Enjoy its refined, knot-free appearance with beautiful color variations ranging from reddish to pinkish-brown tones, accented with darker bands and pale sapwood streaks.

Thermo Aspen/Alder

Experience the luxury of intense thermally modified wood, heat-treated at 419°F or higher. This advanced process creates a stunning deep, rich color while dramatically enhancing durability and dimensional stability. Perfect for those seeking a modern, sophisticated aesthetic with superior performance. Suitable for both indoor and outdoor applications.

Thermo Poplar

A thermally modified wood treated at approximately 374°F for optimal indoor sauna use. This medium modification delivers enhanced dimensional stability, improved resistance to humidity and temperature fluctuations, and a warm, rich tone—all achieved through a chemical-free process. Ideal for creating a naturally beautiful, long-lasting sauna environment.

Customizable Bench Configurations

Choose the bench layout that best fits your space and needs from our selection of configurations shown in the product images. Each configuration is designed to maximize comfort and optimize your sauna experience.

What's Included in Your Custom Sauna Kit:

  • Foil vapor barrier for proper moisture protection
  • Ergonomic backrests for comfortable relaxation
  • 1×4 tongue & groove boards (walls & ceiling) in your selected wood
  • Clear 1×4 bench boards with supports (20″ deep) in matching wood—custom-built to your chosen configuration
  • Corner moldings for walls, ceiling, and baseboards (matching wood)
  • All-glass sauna door with wood handles and trim
    • Frame: 27.2″ × 78.7″ (690 × 2000 mm)
    • Glass: 24.4″ × 77.3″ (620 × 1963 mm)
    • Frame thickness: 1.65″ × 3.6″ (42 × 92 mm)
    • Rough opening required: 28″ × 80″
  • Duckboard flooring for walk area (matching wood)
  • Upper and lower vent grills for proper air circulation
  • Traditional sauna bucket with liner and ladle
  • Sauna thermometer for temperature monitoring
  • Comfortable headrest
  • Marine-grade, wall-mount, vapor-proof sauna light
  • Detailed installation instructions for easy assembly

Important Installation Notes:

  • Recommended ceiling height is 8 feet per manufacturer safety and clearance guidelines. For custom ceiling heights, please contact our support team.

Perfect for Home or Commercial Use

Whether you're building a personal wellness sanctuary or outfitting a spa or gym, our DIY sauna kits deliver professional-quality materials at competitive prices.

Expert Support Available

Contact your Finnish Sauna Builders Specialist today for personalized guidance in creating the perfect sauna room for you and your family.

Note: Your sauna shipment will include an all-glass door, though some photos may display a glass wall for reference. Backrests are shipped flat; if you'd like an angled backrest, additional spacers can be easily created on-site to achieve your desired pitch.

Note: Wall boards run in the standard horizontal direction unless room width exceeds 8 ft; in such cases, an interior seam will be added where two boards meet to span the width.

Sauna Heater Comparison Chart

Feature Harvia KIP80B 8KW Harvia Cilindro PC80 8KW Harvia KIP80W 8KW Harvia Cilindro PC80E 8KW Harvia Spirit 8KW Harvia Virta 8KW
Product Image Harvia KIP80B Sauna Heater Harvia Cilindro PC80 Sauna Heater Harvia KIP80W Sauna Heater Harvia Cilindro PC80E Sauna Heater Harvia Spirit 8KW Sauna Heater Harvia Virta 8KW Sauna Heater
Power Output 8 KW 8 KW 8 KW 8 KW 8 KW 8 KW
Control Type Built-in Control Built-in Control WiFi Control WiFi Control WiFi Control WiFi Control
WiFi Connectivity ❌ No ❌ No ✅ Yes ✅ Yes ✅ Yes ✅ Yes
Heater Stones Included ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes
Railing Included ❌ No ❌ No ❌ No ❌ No ❌ No ✅ Yes
Brand Harvia Harvia Harvia Harvia Harvia Harvia
Model Series KIP Series Cilindro Series KIP Series Cilindro Series Spirit Series Virta Series
Model KIP80B PC80 KIP80W PC80E Spirit Virta
Remote Control Manual only Manual only App-based via WiFi App-based via WiFi App-based via WiFi App-based via WiFi

Harvia KIP80B 8KW Built-in Control

Harvia KIP80B Sauna Heater
Power Output
8 KW
Control Type
Built-in Control
WiFi Connectivity
❌ No
Heater Stones Included
✅ Yes
Railing Included
❌ No
Brand
Harvia
Model Series
KIP Series
Model
KIP80B
Remote Control
Manual only

Harvia Cilindro PC80 8KW Built-in Control

Harvia Cilindro PC80 Sauna Heater
Power Output
8 KW
Control Type
Built-in Control
WiFi Connectivity
❌ No
Heater Stones Included
✅ Yes
Railing Included
❌ No
Brand
Harvia
Model Series
Cilindro Series
Model
PC80
Remote Control
Manual only

Harvia KIP80W 8KW WiFi

Harvia KIP80W Sauna Heater
Power Output
8 KW
Control Type
WiFi Control
WiFi Connectivity
✅ Yes
Heater Stones Included
✅ Yes
Railing Included
❌ No
Brand
Harvia
Model Series
KIP Series
Model
KIP80W
Remote Control
App-based via WiFi

Harvia Cilindro PC80E 8KW WiFi

Harvia Cilindro PC80E Sauna Heater
Power Output
8 KW
Control Type
WiFi Control
WiFi Connectivity
✅ Yes
Heater Stones Included
✅ Yes
Railing Included
❌ No
Brand
Harvia
Model Series
Cilindro Series
Model
PC80E
Remote Control
App-based via WiFi

Harvia Spirit 8KW WiFi

Harvia Spirit 8KW Sauna Heater
Power Output
8 KW
Control Type
WiFi Control
WiFi Connectivity
✅ Yes
Heater Stones Included
✅ Yes
Railing Included
❌ No
Brand
Harvia
Model Series
Spirit Series
Model
Spirit
Remote Control
App-based via WiFi

Harvia Virta 8KW WiFi with Railing

Harvia Virta 8KW Sauna Heater
Power Output
8 KW
Control Type
WiFi Control
WiFi Connectivity
✅ Yes
Heater Stones Included
✅ Yes
Railing Included
✅ Yes
Brand
Harvia
Model Series
Virta Series
Model
Virta
Remote Control
App-based via WiFi

Key Differences

Power & Heating Capacity:

  • All models: 8 KW power output for powerful heating performance in larger sauna rooms

Control & Connectivity:

  • KIP80B & Cilindro PC80: Basic built-in control panel (no remote features)
  • KIP80W, Cilindro PC80E, Spirit & Virta: WiFi-enabled for smartphone control and scheduling

Design & Model Series:

  • KIP Series: Compact wall-mounted design, available in built-in control (KIP80B) and WiFi (KIP80W) versions
  • Cilindro Series: Cylindrical design with large stone capacity, available in standard (PC80) and WiFi-enabled (PC80E) versions
  • Spirit Series: Modern aesthetic with WiFi connectivity and app control
  • Virta Series: Premium model with WiFi control and included protective safety railing

Included Accessories:

  • All models come with heater stones included
  • Harvia Virta is the only model that includes a protective safety railing
Jacoob K.

Everything I've bought from this brand just works. The grips save my hands, the vest feels solid, the socks and gear hold up no matter how hard I train. Durable, comfortable, and built for real workouts.

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