Skip to content
  1. FREE SHIPPING ON SELECTED SAUNAS
  2. 0% Financing for 12 months - Use your HSA/FSA funds with TrueMed
TRADE PROGRAM TRADE
  1. Want a sauna fast?
  2. Heater Sizing Tool
  3. Sauna Quiz
  4. Downloads & Manuals
  1. Call or Chat for a Free Consultation 888-655-3625

Custom Indoor Sauna Room - Pre-cut Kits

Premium Precut Sauna Kits – Build Your Dream Sauna at Home

Transform your home into a personal wellness retreat with our high-quality precut sauna kits. Designed for easy assembly, our DIY sauna kits come with everything you need to create an authentic Finnish sauna experience — at factory direct prices.

Complete Home Sauna Kits, Ready for Your Space

Our home sauna kits arrive with all interior components precisely pre-cut and tailored to your room dimensions. Choose from three premium wood options — Grade A Western Red Cedar, Thermo Aspen/Alder, or Thermo Poplar — and select the bench configuration that best fits your space.

Everything You Need, Included

Every sauna kit comes fully equipped with tongue & groove wall and ceiling boards, bench boards, an all-glass sauna door, vapor barrier, duckboard flooring, vent grills, a traditional sauna bucket, thermometer, vapor-proof light, and detailed installation instructions.

Built for Home or Commercial Use

Whether outfitting a personal spa or a commercial gym, our DIY sauna kits deliver professional quality at unbeatable prices. Need help? Our Finnish Sauna Builders Specialists are ready to guide you every step of the way.

👉 Browse our sauna kits collection and start building today!
Clear all
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W
Finnish Sauna Builders

Custom Indoor Sauna Room - 3' x 4' x 8' - Pre-Cut Sauna Kit

from $5,190.50
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under
Cambium

Carbon Smart Saunas - 3' x 4' x 8' - by Cambium

from $5,190.50
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W
Finnish Sauna Builders

Custom Indoor Sauna Room - 4' x 4' x 8' - Pre-Cut Sauna Kit

from $5,747.40
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under
Cambium

Carbon Smart Saunas - 4' x 4' x 8' - by Cambium

from $5,747.40
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W
Finnish Sauna Builders

Custom Indoor Sauna Room - 4' x 5' x 8' - Pre-Cut Sauna Kit

from $6,323.90
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under
Cambium

Carbon Smart Saunas - 4' x 5' x 8' - by Cambium

from $6,323.90
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W
Finnish Sauna Builders

Custom Indoor Sauna Room - 4' x 6' x 8' - Pre-Cut Sauna Kit

from $6,900.50
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under
Cambium

Carbon Smart Saunas - 4' x 6' x 8' - by Cambium

from $6,900.50
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W
Finnish Sauna Builders

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

from $6,935.20
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under
Cambium

Carbon Smart Saunas - 5' x 5' x 8' - by Cambium

from $6,935.20
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W
Finnish Sauna Builders

Custom Indoor Sauna Room - 4' x 7' x 8' - Pre-Cut Sauna Kit

from $7,477.10
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under
Cambium

Carbon Smart Saunas - 4' x 7' x 8' - by Cambium

from $7,477.10
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W
Finnish Sauna Builders

Custom Indoor Sauna Room - 5' x 6' x 8' - Pre-Cut Sauna Kit

from $7,566.20
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under
Cambium

Carbon Smart Saunas - 5' x 6' x 8' - by Cambium

from $7,566.20
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W
Finnish Sauna Builders

Custom Indoor Sauna Room - 4' x 8' x 8' - Pre-Cut Sauna Kit

from $8,053.70
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under
Cambium

Carbon Smart Saunas - 4' x 8' x 8' - by Cambium

from $8,053.70
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W
Finnish Sauna Builders

Custom Indoor Sauna Room - 5' x 7' x 8' - Pre-Cut Sauna Kit

from $8,197.20
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under
Cambium

Carbon Smart Saunas - 5' x 7' x 8' - by Cambium

from $8,197.20
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W
Finnish Sauna Builders

Custom Indoor Sauna Room - 6' x 6' x 8' - Pre-Cut Sauna Kit

from $8,312.00
Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Western Red Cedar / No Accessories / No Heater,Western Red Cedar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Western Red Cedar / Bench Skirting / No Heater,Western Red Cedar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Western Red Cedar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,W Custom Indoor Sauna Room - 3' x 4' x 8' - Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater,Thermo Poplar / No Accessories / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / No Accessories / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / Bench Skirting / No Heater,Thermo Poplar / Bench Skirting / Harvia KIP45W 4.5KW WiFi with Heater Stones,Thermo Poplar / Bench Skirting / HUUM Cliff Mini 3.5KW WiFi with Heater Stones and Railing,Thermo Poplar / LED Under
Cambium

Carbon Smart Saunas - 6' x 6' x 8' - by Cambium

from $8,312.00
Showing 20 of 46

Custom Indoor Sauna Kits FAQ

What is a custom indoor sauna room kit?

It is a pre-cut sauna kit made to your room dimensions. The boards arrive cut to fit, so you assemble the sauna inside your space. See all pre-cut room packages.
What sizes are available?

We offer sizes such as 3 x 4 x 8 ft, 4 x 4 x 8 ft, 4 x 5 x 8 ft, 4 x 6 x 8 ft, 5 x 5 x 8 ft, 6 x 6 x 8 ft and 7 x 10 x 8 ft. Pick the size on the product page, or contact us for your exact room.
How much does a custom sauna room kit cost?

Our custom indoor sauna room kits start around $5,000, depending on the size and wood. Factor in the heater, electrical work and installation.
What is included in the kit?

Every kit includes tongue and groove wall and ceiling boards, bench boards, an all-glass sauna door, vapor barrier, duckboard flooring, vent grills, a traditional sauna bucket, a thermometer, a vapor-proof light and detailed installation instructions.
What wood options do you offer?

You can choose Grade A Western Red Cedar, thermally modified aspen or alder, or thermally modified poplar, and select the bench configuration that fits your space.
How hard is the assembly?

The kits are designed for easy DIY assembly, and all interior components are cut to size. Read our vapour barrier installation guide before you start.
Which heater should I use with the kit?

Choose a heater sized for your room volume. Electric heaters are the usual choice indoors, and they need a dedicated circuit installed by an electrician. Electric heaters | Wood-burning heaters.
Can I use the kit for a commercial space?

Yes. Our kits suit home saunas and commercial spaces such as gyms. Our Finnish Sauna Builders specialists can guide you every step of the way.

FINANCING AVAILABLE

Clear, transparent terms. Fair rates. No prepayment penalties.

Get Your Rate

PAY OVER TIME

We provide easy and affordable financing through our partner Bread® so you can pay for your purchase over time.

Affordable Monthly Plans

Affordable Monthly Plans

Buy now and pay for your purchase over time at competitive rates.

No prepayment penalties

No prepayment penalties

Pay for your purchase with monthly payments and prepay at any time without penalty.

Easy Application

Easy Application

Get a decision in seconds with no obligation to buy. Checking your rate won't affect your credit score. Your data is safe and encrypted.

It’s Easy

Step 1

Add to Cart

Connector 1
Step 2

Checkout with Bread®

Connector 2
Step 3

Receive Your Sauna

Connector 3
Step 4

Pay Over Time