Authentic Finnish Design Saunas. Built for Seattle Homes.
At Salt & Cedar, we design and build custom traditional Finnish saunas for homeowners throughout Seattle and the Eastside. Every sauna is handcrafted using premium Pacific Northwest cedar and designed according to authentic Finnish sauna principles with natural cedar wood and no VOCs - not generic mass-produced or prefabricated kits made with toxic glues and VOCs.
Why Seattle Homeowners Choose Salt & Cedar
Whether you're converting a bathroom, home gym, basement, or creating a backyard wellness retreat, we design every sauna specifically for your home, your lifestyle, and the way a Finnish sauna is meant to perform.
Unlike mass-produced sauna kits, every Salt & Cedar sauna is built around your space.
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Custom Built
Every sauna is designed and custom built in our workshop to your unique specifications and your home's dimensions - not limited by kit sizes and not mass-produced elsewhere.
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Authentic Finnish Design
Bench heights, ventilation, insulation, ceiling proportions and heater placement - we take care of everything no matter how small the space for excellent löyly.
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Professional Design & Installation
From concept through installation, we manage the entire process. We'll work with you to design each corner of your sauna with meticulous detail.
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Indoor & Outdoor
We build custom saunas for bathrooms, home gyms, basements, ADUs, backyards, lake houses, Airbnbs/vacation homes, and more.
Designed and Built for PNW's Climate
Seattle's weather demands thoughtful construction. Our outdoor saunas are designed to withstand: continuous rainfall, seasonal temperature changes, and Pacific Northwest humidity.
Whether installed in Seattle, Bellevue, Mercer Island, or Medina, every sauna is built for long-term durability.
We Build Custom Saunas Throughout Greater Seattle
Custom sauna installations in various neighborhoods
Frequently Asked Questions
Why invest in a custom sauna?
A custom sauna becomes part of your home - not simply another appliance.
Instead of compromising on dimensions, seating or aesthetics, a custom build allows you to create a wellness space designed around how you actually live.
We are one of the only few brands that follow the design principles and best practices of authentic Finnish sauna standards for the most incredible Loyly experience (e.g., Lassi’s Guide or Trumpkin’s notes) which you will not find in the designs provided by most US sauna manufacturers.
How much does a custom Finnish sauna cost in Seattle?
Our price range for authentic Finnish sauna builds starts at $5K for 1-person model. Pricing depends on size, location, materials, heater selection and customizations. We provide a personalized quote after learning about your project.
Can you build a sauna inside my existing home?
Yes. We regularly build indoor saunas in bathrooms, basements, garages, home gyms, spare rooms, and even closet spaces.
Can you build outdoor Finnish saunas?
Absolutely. We design outdoor saunas specifically for the Pacific Northwest climate while adhering to Finnish sauna design principles.
What wood and materials do you use?
We build primarily with premium Pacific Northwest cedar because of its durability, stability and natural beauty. We handcraft each sauna only using pure natural cedar wood without any chemicals, glues, or VOCs.
Do you provide installation for the sauna?
Yes. We offer complete delivery and professional installation services.
Have more questions?
Please feel free to reach out to us with your sauna request details and questions and we'll get back to you with all the information.