Experience the authentic Finnish sauna tradition without leaving home—custom-crafted to fit your space, lifestyle, and wellness goals.
A custom indoor sauna solves the three biggest challenges homeowners face: weird spaces, specific needs, and getting it right the first time.
Maybe you’ve got that unused corner in the basement with the awkward ceiling angle. Or you need a sauna that fits six people because Finnish relatives visit every Christmas. Could be you want cedar walls but hemlock benches because you love the smell of cedar but prefer sitting on hemlock.
Here’s what makes custom worth it: You get exactly what you want, built to last 20+ years, designed specifically for your space and how you’ll actually use it.
We’ve built saunas in converted closets, master bathrooms, and workout rooms. Each one designed around how that specific family uses their sauna.
We’ll build your sauna the same way — to fit your goals and space constraints.
Work directly with our highly-trained craftsmen to create a sauna that fits your exact space and vision.
Every detail is customizable, from the smallest 2-person retreat to a spacious family sauna room, ensuring your investment perfectly matches your home’s architecture and your wellness goals.
Choose from 8 hand-selected, sustainably sourced wood species that stay cool to the touch (knots get hot in the sauna so we only use knot-free benching/ backrests, but do offer knotty walls and ceiling boards).
Our clear western red cedar, Nordic spruce, thermo-aspen, and other premium woods are chosen specifically for their ability to withstand decades of sauna use while maintaining their beauty and structural integrity.
View wood types below.
The modern convenience of the traditional Finnish sauna is Wi-Fi and app capabilities so you can power your sauna from the living room, your office, or the grocery store so it will be ready when you are.
Non-Wi-Fi electric sauna heaters are available if you choose.
Built with time-tested Finnish construction methods that ensure decades of daily use.
Our attention to detail, from proper ventilation to moisture barriers, means your sauna will provide wellness benefits for years to come.
Choose from Wi-Fi enabled or traditional controls with properly sized electric heaters for optimal performance.
We calculate the exact requirements for your space, ensuring quick heat-up times and consistent temperatures while minimizing energy costs.
Professional installation by our master builders or detailed DIY support.
Whether you want turnkey installation or prefer to build it yourself, we provide the exact level of support you need for success.
Create a daily ritual that improves cardiovascular health, reduces stress, and enhances sleep quality.
Your custom sauna becomes the cornerstone of a healthier lifestyle, providing proven benefits that compound with regular use.
Not only that, but a sauna can increase your home’s appeal to potential buyers—but the real value starts immediately with daily health benefits, stress relief, and family wellnes that you’ll enjoy for years before any resale consideration.
When you buy a modular sauna from an online-only retailer, you’re on your own.
When you purchase from us, you get a partner. Have a question? Call us at 612.505.9700.
Need a hand with installation? We offer professional installation services.
Want to see the materials firsthand? Visit our Minnesota showroom. We’re here to ensure your success.
View our custom indoor sauna gallery and imagine what we could do for you. For additional sauna photos visit our sauna gallery page here.
Each of the following options allows you to tailor the look, feel, and performance of your sauna to your exact preferences. We’re here to guide you through every choice.
More than just dimensions, the size of your sauna defines its purpose. Are you seeking a private space for solo meditation, or a social hub for family and friends? We’ll help you match the footprint to your lifestyle. Here are some common sizes.
The heater is the engine of your sauna. Your choice determines the character of the heat and steam (löyly). We offer 5 brands of exceptional heaters to power your experience. Below are the three most popular heaters we offer.
The wood defines the sauna’s ambiance—its look, its feel, and its scent. We use only premium, furniture-grade woods that are beautiful, durable, and create the perfect environment for relaxation.
All our wood is mill-direct, using only the highest quality, hand-selected wood. All from verified sustainable forests. All wood choices are chosen for their ability to hold up for years (typically decades) in the harsh sauna environment.
All wood that touches skin (benches, backrests, duckboard flooring, heater guard, headrest) is chosen for staying cool to the touch of the skin (knots get hot in the sauna!)
Interior Wood Types Available :
Exterior Wood: The exterior panels can be finished with the same beautiful woods to create a seamless, standalone sauna. Wood types can be mixed and matched to fit your style and budget.
Don’t overlook the details that deliver true comfort. A well-designed backrest transforms a bench from a simple seat into a comfortable lounger, providing essential ergonomic support for your mid-back and shoulders, allowing for longer, more relaxing sessions.
Each custom sauna comes with a standard 2-bar backrest. There are upgraded backrest versions available.
The right lighting is crucial for creating a truly relaxing atmosphere. Move beyond a simple bulb and create a soft, tranquil glow. We offer a range of modern lighting solutions, including LED light strips installed behind the backrests or underneath the benches to wash the walls with warm, indirect light—perfect for enhancing a state of deep relaxation.
LED strip lighting comes pre-installed behind your backrest. Can also be placed under bench.
Cariitti glass fiber lighting can be installed in the ceiling or on the backrest to create a halo effect.
Puck Lights go into the ceiling.
Globe Light mounts on the wall.
Your sauna door sets the tone for the entire room. We offer high-quality options to match your desired aesthetic and level of privacy.
Our standard sauna window comes in a single pane, tempered glass. We do offer double pane windows. They’re available in both clear and bronze tint. All windows pre-hung in the panels.
Below are our standard sauna window sizes in the custom sauna. We can do entirely custom window sizing if the below options are not what you’re looking for.
Window Sizes:
Comfort and cleanliness start from the ground up. A duckboard walkway (in Finnish, ritilä) provides a beautiful, slip-resistant surface that feels warm and comfortable underfoot. It keeps your feet off the main floor of your home and is easily removable for cleaning.
A duckboard walkway comes standard with each sauna kit. Duckboards sit on the floor of the sauna and are walked on.
Duckboards usually are built in the primary wood species of the sauna.
An additional duckboard can be purchased for outside of the sauna (entryway, etc).
For a truly seamless and professional look, consider adding a skirt to the upper bench.
This panel cleanly closes the gap between the upper and lower benches, hiding the bench supports and creating the elegant, finished appearance of a high-end custom-built sauna.
This customer wanted a complete basement rebuild—and that’s exactly what we delivered.
We stripped the space down, reframed and insulated everything, and rebuilt it using Clear Canadian Hemlock for a clean, modern finish.
Swipe to see the transformation: before-and-after photos that show how this room went from bare walls to a warm, inviting sauna and spa area.
Bathtub out, sauna in. Nordic spruce inside and out, hemlock where you sit, bronze glass where you enter. That Finnleo Designer SL2 brings the heat exactly when you need it.
A complete re-do of this customer’s bathroom.
We handle custom sauna installations ourselves—no subcontractors, no surprises. Our crew has built over 150 custom saunas across Minnesota, and we know every trick for dealing with basement corners, bathroom conversions, and those “interesting” spaces unique to Minnesota homes.
What We Handle:
Timeline: Most custom installations take 2-3 days. We’ll give you specific dates when we finalize your design.
What You’ll Need to Arrange:
Why This Matters: The difference between a decent sauna and a great one is in details you might not notice until it’s too late. Benches at the wrong height. Improperly installed vapor barrier. No venting. We’ve fixed enough DIY attempts to know what goes wrong—that’s why we handle your installation personally.
After Installation: You get our direct number for questions. Real support from the people who built your sauna.
Schedule a Site Visit → We’ll look at your space, discuss installation logistics, and give you a clear picture of the process. No obligation, just good information to help you decide.
While we handle the complex details, a little preparation ensures your sauna installation goes smoothly. Most of our customers are surprised by how simple the process is—here’s what you need to know to get your space ready for transformation.
Electrical Requirements
Your sauna will need 220V/240V electrical service, similar to an electric dryer or stove. We’ll provide the heater manual beforehand for your electrician to ensure the wiring is sufficient. Most homes already have adequate electrical capacity, but we’ll confirm this during consultation.
Framing & Insulating
If you are converting a pre-framed and insulated space into a sauna, ensure that there is no drywall on the walls and ceiling. We do offer framing & insulating for custom saunas—ask if this is something you will need.
Ventilation Planning
Proper ventilation is crucial for comfort and performance of the heater. Ideally each custom indoor sauna vents into an open area with good air circulation.
Moisture Protection
Although our saunas are designed with excellent moisture control, consider the surrounding area. If installing on a concrete basement floor, no additional prep is needed. For installations over finished flooring, we recommend moisture-resistant materials near the sauna entrance where you’ll step out after sessions.
Day of Installation
Our professional installation typically takes 2-3 days. We’ll need access to the space and electrical power for tools. If you’re choosing DIY installation, set aside a couple of days and recruit a helper—while one person can manage it, having an extra set of hands makes the process more enjoyable.
We build saunas the way they should be built—with Finnish expertise and Minnesota craftsmanship. Our team doesn’t just sell saunas; we use them daily, understand their construction inside and out, and have helped over 250 families create their perfect sauna experience—whether through a fully custom done-for-you sauna, DIY sauna kit or a modular system.
Every sauna we build reflects decades of combined experience in woodworking, construction, and traditional sauna design. Our builders handle projects from compact home saunas to luxury custom installations, ensuring precise construction and authentic performance every time.
Before you invest, visit our showroom to experience authentic sauna heat. Feel the difference quality materials and proper construction make. Talk with specialists who understand löyly, ventilation, and the details that separate a great sauna from an expensive disappointment.
Our 50+ five-star reviews on Google come from customers who’ve experienced the difference professional guidance makes—from initial design through your first sauna session.
From first-time buyers navigating their options to Finnish families honoring tradition, our customers tell it best. Read what verified reviewers say about working with us—and imagine your own wellness journey beginning. Read 50+ 5 star customer reviews on Google here.
Your perfect home sauna is just a conversation away. Whether you have detailed plans or just a dream of better wellness, our team will guide you through every decision, ensuring your custom indoor sauna exceeds expectations while fitting seamlessly into your life.
Use the contact form to get started.
Prefer to talk? Call us at 612-505-9700 to discuss your sauna dreams with one of our sauna specialists.
Each custom sauna requires a dedicated 240V circuit. The specific amperage depends on the heater size (e.g., a 4.5 kW heater typically needs a 30-amp circuit). All electrical work must be performed by a licensed electrician to ensure safety and code compliance. We can provide the specific electrical requirements for the model you choose.
Most residential saunas cost $1-3 per session in electricity—less than a trip to a commercial spa. With proper insulation and an appropriately sized heater, your sauna heats up in 30-45 minutes and maintains temperature efficiently.
This is where our expertise shines. We’ll evaluate your space, discuss how you plan to use your sauna, and recommend the optimal size. Generally, allow 2 feet of bench space per person, but we also consider ceiling height, heater placement, and traffic flow. We will guide you through the process.
Quality shows in every detail—from woods that stay beautiful for years to high-quality heaters. Our saunas are built by craftsmen who use saunas daily and understand what makes the difference between adequate and exceptional. Add our local support, proven track record, and the ability to see examples in our showroom, and the value becomes clear.
Typically 6-10 weeks from approved design to installation, though timing varies by season. Once we start building the sauna we typically complete the job in 2-3 days. We keep you informed throughout the process.
Almost anywhere! We’ve built saunas in basements, spare bedrooms, master suites, attics, garages, and even large closets. The key requirements are adequate space (minimum 4’x4′), access to 220V electrical service, and proper ventilation. Our team excels at creative solutions for challenging spaces.
If you have other questions or need specific information, don’t hesitate to ask. We have years of sauna experience and will help you with what you need.
Experience the difference quality makes at our Cokato, MN sauna showroom, where you can see, touch, and even try our saunas before deciding. Explore custom indoor, custom outdoor, and modular models to compare construction, feel the authentic heat, and experience different wood types—whether it’s the aromatic Western Red Cedar, clean Canadian Hemlock, traditional Nordic Spruce, or more.
Our sauna specialists are here to answer questions, explain the differences between modular and custom builds, and help you visualize how a sauna fits into your space and lifestyle. Many customers tell us their showroom visit completely changed their understanding of what they wanted—there’s no substitute for seeing and sitting in a sauna before you buy.
Visit us at 500 Cokato St W, Cokato, Minnesota. Our standard business hours are 8AM-5PM CST. View our Google Business Profile for updated and holiday hours, or call 612.505.9700 to schedule an appointment.
Our sauna specialists offer personalized guidance and expert recommendations tailored to your space, budget, and wellness goals.
Submit the form, and we’ll be in touch to discuss your project.
The Sisu Sauna is a great choice for straightforward installation and flexible customization. Submit the form, and a sauna specialist will reach out shortly to discuss your project.
Submit the form to get a quote, ask questions, or receive expert guidance from one of our sauna specialists.
Our sauna specialists offer personalized guidance. Get expert recommendations tailored to your space, budget, and wellness goals. We’ll reach out to you about your project after you submit a form.
