Custom Indoor Sauna Room - 5' x 5' x 8' - Pre-Cut Sauna Kit

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 KIP60W 6KW	Harvia KIP60B 6KW	Harvia Cilindro PC60 6KW	Harvia Cilindro PC60E 6KW	Harvia Spirit 6KW	Harvia Virta 6KW
Product Image
Power Output	6 KW	6 KW	6 KW	6 KW	6 KW	6 KW
Control Type	WiFi Control	Built-in Control	Built-in Control	WiFi Control	WiFi Control	WiFi Control
WiFi Connectivity	✅ Yes	❌ No	❌ No	✅ 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	KIP Series	Cilindro Series	Cilindro Series	Spirit Series	Virta Series
Model	KIP60W	KIP60B	PC60	PC60E	Spirit	Virta
Remote Control	App-based via WiFi	Manual only	Manual only	App-based via WiFi	App-based via WiFi	App-based via WiFi

Harvia KIP60W 6KW WiFi

Power Output

6 KW

Control Type

WiFi Control

WiFi Connectivity

✅ Yes

Heater Stones Included

✅ Yes

Railing Included

❌ No

Brand

Harvia

Model Series

KIP Series

Model

KIP60W

Remote Control

App-based via WiFi

Harvia KIP60B 6KW Built-in Control

Power Output

6 KW

Control Type

Built-in Control

WiFi Connectivity

❌ No

Heater Stones Included

✅ Yes

Railing Included

❌ No

Brand

Harvia

Model Series

KIP Series

Model

KIP60B

Remote Control

Manual only

Harvia Cilindro PC60 6KW Built-in Control

Power Output

6 KW

Control Type

Built-in Control

WiFi Connectivity

❌ No

Heater Stones Included

✅ Yes

Railing Included

❌ No

Brand

Harvia

Model Series

Cilindro Series

Model

PC60

Remote Control

Manual only

Harvia Cilindro PC60E 6KW WiFi

Power Output

6 KW

Control Type

WiFi Control

WiFi Connectivity

✅ Yes

Heater Stones Included

✅ Yes

Railing Included

❌ No

Brand

Harvia

Model Series

Cilindro Series

Model

PC60E

Remote Control

App-based via WiFi

Harvia Spirit 6KW WiFi

Power Output

6 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 6KW WiFi with Railing

Power Output

6 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: 6 KW power output for consistent heating performance

Control & Connectivity:

KIP60B & Cilindro PC60: Basic built-in control panel (no remote features)
KIP60W, Cilindro PC60E, Spirit & Virta: WiFi-enabled for smartphone control and scheduling

Design & Model Series:

KIP Series: Compact wall-mounted design, available in WiFi (KIP60W) and built-in control (KIP60B) versions
Cilindro Series: Cylindrical design with stone capacity, available in standard (PC60) and WiFi-enabled (PC60E) versions
Spirit Series: Modern aesthetic with WiFi connectivity
Virta Series: Premium model with WiFi control and included protective railing

Included Accessories:

All models come with heater stones included
Harvia Virta is the only model that includes a protective railing

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Custom Indoor Sauna Room - 5' x 5' x 8' - Pre-Cut Sauna Kit

Finnish Sauna Builders

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