Finnish Sauna Builders Custom Indoor Sauna Room - 3' x 4' x 8'
Finnish Sauna Builders Custom Indoor Sauna Room - 3' x 4' x 8' - Western Red Cedar / No Accessories / No Heater is backordered and will ship as soon as it is back in stock.
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Finnish Sauna Builders Custom Indoor Sauna Room - 3' x 4' x...
- Description
- Specifications
- What's Included
- Heater Options
- Dimensions
- Warranty
- Shipping
- Manuals
Transform your home into a private wellness sanctuary with the Finnish Sauna Builders Custom Indoor Sauna Room Kit. Thoughtfully designed for both homeowners and contractors, this complete DIY sauna package includes premium interior materials, ergonomic seating, an elegant all-glass sauna door, ventilation components, lighting, and essential accessories needed to create an authentic Finnish sauna experience. Offered in a variety of beautiful wood options and customizable bench layouts, this 3’ x 4’ x 8’ indoor sauna seamlessly blends timeless craftsmanship, comfort, and modern luxury.
Features
◎ Complete custom indoor sauna room kit designed for DIY or professional installation
◎ Available in premium wood options including Western Red Cedar, Thermo Aspen/Alder, and Thermo Poplar
◎ Custom bench configurations to fit your space and seating preferences
◎ Includes ergonomic backrests and matching duckboard flooring
◎ All-glass sauna door with wood handles for a modern, open appearance
◎ Foil vapor barrier and vent grills for proper moisture and airflow management
◎ Marine-grade vapor-proof sauna light included
◎ Compatible with Harvia and HUUM sauna heaters
◎ Optional WiFi-enabled heater controls available on select heater models
◎ Product Type: Custom Indoor Sauna Room Kit
◎ Brand: Finnish Sauna Builders
◎ Sauna Size: 3' x 4' x 8'
◎ Installation Type: Indoor
◎ Capacity: Approx. 1–2 persons
◎ Recommended Ceiling Height: 8 ft
◎ Wall & Ceiling Material: 1x4 tongue-and-groove boards
◎ Bench Depth: 20"
◎ Door Type: Tempered all-glass sauna door
◎ Door Frame Size: 27.2" W x 78.7" H
◎ Glass Size: 24.4" W x 77.3" H
◎ Rough Opening Required: 28" W x 80" H
◎ Lighting: Marine-grade wall-mounted vapor-proof sauna light
◎ Ventilation: Upper and lower vent grills included
◎ Flooring: Matching duckboard flooring included
◎ Foil vapor barrier
◎ 1x4 tongue-and-groove wall and ceiling boards
◎ Matching bench boards and bench supports
◎ Ergonomic backrests
◎ Corner moldings and trim pieces
◎ All-glass sauna door with wood handles
◎ Duckboard flooring
◎ Upper and lower vent grills
◎ Sauna bucket with liner and ladle
◎ Sauna thermometer
◎ Headrest
◎ Marine-grade vapor-proof sauna light
◎ Installation instructions
◎ Heater stones (with heater purchase)
Important Notes
◎ Sauna shipment includes an all-glass door, although some product images may show a glass wall for reference
◎ Backrests are shipped flat; angled positioning can be achieved with on-site spacers if desired
◎ Wall boards are installed horizontally as standard; rooms wider than 8 ft may include an interior seam where boards meet
Compatible Heater Options
◎ Harvia KIP45B — 4.5kW heater with built-in controls
◎ Harvia KIP45W — 4.5kW WiFi-enabled heater
◎ HUUM Cliff Mini — 3.5kW WiFi-enabled heater with protective railing
| Feature | Harvia KIP45B 4.5KW | Harvia KIP45W 4.5KW | HUUM Cliff Mini 3.5KW |
|---|---|---|---|
| Product Image |  |
 |
 |
| Power Output | 4.5 KW | 4.5 KW | 3.5 KW |
| Cubic Feet Coverage | 176 - 353 cu ft | 176 - 353 cu ft | 106 - 247 cu ft |
| Control Type | Built-in Control | WiFi Control | WiFi Control |
| WiFi Connectivity | ❌ No | ✅ Yes | ✅ Yes |
| Heater Stones Included | ✅ Yes | ✅ Yes | ✅ Yes |
| Railing Included | ❌ No | ❌ No | ✅ Yes |
| Brand | Harvia | Harvia | HUUM |
| Model | KIP45B | KIP45W | Cliff Mini |
| Remote Control | Manual only | App-based via WiFi | App-based via WiFi |
Harvia KIP45B 4.5KW
Power Output
4.5 KW
Cubic Feet Coverage
176 - 353 cu ft
Control Type
Built-in Control
WiFi Connectivity
❌ No
Heater Stones Included
✅ Yes
Railing Included
❌ No
Brand
Harvia
Model
KIP45B
Remote Control
Manual only
Harvia KIP45W 4.5KW
Power Output
4.5 KW
Cubic Feet Coverage
176 - 353 cu ft
Control Type
WiFi Control
WiFi Connectivity
✅ Yes
Heater Stones Included
✅ Yes
Railing Included
❌ No
Brand
Harvia
Model
KIP45W
Remote Control
App-based via WiFi
HUUM Cliff Mini 3.5KW
Power Output
3.5 KW
Cubic Feet Coverage
106 - 247 cu ft
Control Type
WiFi Control
WiFi Connectivity
✅ Yes
Heater Stones Included
✅ Yes
Railing Included
✅ Yes
Brand
HUUM
Model
Cliff Mini
Remote Control
App-based via WiFi
Sauna Room Dimensions
◎ Width: 3 ft
◎ Depth: 4 ft
◎ Height: 8 ft
Door Dimensions
◎ Frame Size: 27.2" W x 78.7" H
◎ Glass Size: 24.4" W x 77.3" H
◎ Rough Opening Required: 28" W x 80" H
Bench Dimensions
◎ Bench Depth: 20"
Finnish Sauna Builders sauna room kits include a manufacturer warranty covering defects in materials and workmanship under normal residential use. Warranty coverage for sauna heaters and accessories may vary by manufacturer, including Harvia and HUUM components.
