Minnesota Custom Indoor Sauna Builder

Custom Indoor Saunas.

Let's Build Your Dream Indoor Sauna.

Transform any room in your home into a personal wellness retreat with a custom indoor sauna designed to fit your space and your vision. Whether you’re looking for a cozy two-person escape or a spacious luxury sauna, we craft each unit to your exact specifications, ensuring a perfect fit and seamless integration into your home.

Building a custom indoor sauna be a little confusing – you may be wondering things such as: What do I need to know about ventilation?  How big should the sauna be?  What is the right heater for my sauna?  And more…

We will answer any questions you have and guide you along the way. We have years of sauna building experience and will ensure that the process is enjoyable, just like taking a sauna should be.  

We take a tremendous amount of pride in providing excellent customer support, and put a high level of attention to detail in our sauna builds. 

We can build you the sauna that you have dreamed about.  Give us a call 612.505.9700 or reach us through our contact form to get started! 

sauna supply showroom cedar sauna benching
Our Custom Cedar Showroom Sauna

Custom Options For Your Sauna

Every sauna space is unique, and our custom indoor traditional saunas are designed to reflect your style and needs.  From the layout and materials to the finishing touches, we offer a wide range of customization options to create a sauna that is both functional and beautifully crafted.

Dimensions & Layout

The size and layout of your indoor sauna is important to consider before building the sauna.  

Factors to consider are : 

  • Where is the sauna going to go?
  • How many people do you want to fit in the sauna?
  • Do you want to lay down in the sauna?  
  • Electrical requirements.
  • Space requirements. 

We can help walk you through the process to ensure that the sauna is the right size and layout for you.   Call 612.505.9700 or reach us through our contact form for any questions you have!

Heater & Control

The sauna heater is the heartbeat of the sauna.  Each sauna heater has something to offer.  Warranty, steam quality, durability, Wifi (or not) to name a few. 

We will help you properly size your sauna heater and walk you through the different heater options available (and why you might choose one heater over another).  We offer both Wifi and knob-controlled electric sauna heaters. 

Featured Sauna Heater Brands

  • Finnleo 
  • Iki
  • FinSauna 
  • HomeCraft
  • Saunum

Wood Type

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!)

Wood Types Available : 

Backrest

Each custom indoor sauna comes with a standard 2-bar backrest.  There are upgraded backrest versions available.

Standard 2-Bar

3-Bar

3-Bar Wide

5-Bar Heat-Treated

3-Bar Wide Heat-Treated

2-Bar Wide

6-Bar Curved Heat-Treated

6-Bar Curved

Sauna Lighting

We offer 4 main types of lighting for your sauna : 

LED strip lighting comes pre-installed behind your backrest. Can also be placed under bench. 

  • Pairs with the SL2 control and app
  • Cycle through multiple colors, or white
  • Dimmable

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.

  • Pairs with the SL2 control and app
  • Cycle through multiple colors, or white
  • Dimmable

Globe Light mounts on the wall. 

  • Runs independently from control
  • Supply 120 V power to light
  • Available with switch on light, or supply your own.

Sauna Door

Each sauna door swings out.  The glass doors feature a single pane, tempered glass with a latch.  Wood doors feature a single clear, tempered pane down the center, with ball & catch latch or self-closing hinges. 

Door Types Available : 

  • Douglas Fir Frame Door w/ Clear Glass Insert 
  • Bronze Tint All Glass Door
  • Clear All Glass Door 
  • Satin (Frosted) All Glass Door 

Our sauna doors are available in sizes : 

  • 24″ x 72″ 
  • 24″ x 80″
  • 30″ x 80″
  • 36″ x 80″
  • *Custom door sizes are available – including all glass fronts

Sauna Windows

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: 

  • 12″ x 30″
  • 16″ x 30″ 
  • 12″ x 60″ 
  • 16″ x 60″
  • Custom windows sizes are available 
nordic spruce sauna with 16x30 bronze tint window

Duckboard Walkway

A duckboard walkway comes standard with each sauna kit.  Duckboards sit on the floor of the sauna and are walked on. 

Duckboards are nice to have, but they’re not a requirement.  Particularly if you put tile down in your sauna.  If your sauna floor is concrete, we recommend a duckboard.

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).  

custom thermo-aspen sauna with duckboard walkway
Custom Thermo-Aspen sauna with duckboard.

Upper Bench Skirts

Upper bench skirts are an upgrade in the sauna.  They sit in between the lower and upper bench (lower bench skirts are available, just far less popular for convenience reasons). 

Bench skirts are popular in saunas for aesthetics purposes.  They help tie the look of the sauna together.  

Delivery & Installation

A sauna is one of the more relaxing, rejuvenating experiences that exists. Installing it in your home should be no different.

Your entire experience in working with our team at Sauna Supply Company is customized. Whether you’d like us to install your sauna for you, or DIY the entire thing yourself, we’ll be there to help you along the journey.

Our team will ensure that from the second we start talking about your sauna project to long after we leave that you are taken care of every step of the way. 

Our Process

Our custom sauna process is simple.  Don’t hesitate to ask any questions throughout it – we’ve built and installed over 150 saunas so we know how to help!   

Submit a quote

It starts when you submit a quote, or give us a call (612.505.9700).  

After you submit a form, we’ll reach out to you about your sauna project!  

Discuss sauna details

We’ll walk you through the different sauna options available, preparation needed before installing a sauna, and answer any questions you have during the process.

Get a CAD

After you’ve decided on the custom options, we’ll get a CAD drawing for it.  You’ll still have time to change the sauna if you want. 

Start building process

After you’ve approved the CAD, the building process will start.  

Typically custom saunas have a lead time (duration changes throughout the year).  We do have saunas in stock at all times.

Install the sauna & take steam

After the sauna is ready, we’ll install it!  Otherwise if you’re building the sauna DIY it can be picked up at our shop or delivered to your door. 

Why Work With Us?

We know saunas, inside and out.

Our relationship with saunas is deeply personal. Long before we started building them, we were using saunas on a daily basis. 

We believe that to understand a sauna, you’ve got to use it. 

Our residential Finnleo sauna rooms come with a five year warranty.  We service what we sell and have North American customer support from 8AM-5PM CST weekdays and 9AM-12PM CST on Saturday.  Give us a call at any time (612)505-9700 or contact us online

Our commitment is not simply to put a sauna in your home. 

It is to deliver an experience unlike any other each and every time you step into your personal sauna escape.

custom thermo-aspen sauna with all glass front
custom thermo-aspen sauna with all glass front
Quote my indoor sauna.

The traditional Finnish Sauna is stress free. So is our process. We share our passion with folks who appreciate Minnesota nice and have a desire to share our passion for sauna.

A custom sauna offers nearly endless possibilities.  Briefly describe your sauna project and submit the form.  We’ll get in touch with you to discuss building your custom sauna.  

Quote My Custom Sauna

Submit a quote request for a team member to reach out to you about your sauna project. 

Standard 2 Bar
2 Bar Wide
3 Bar Wide (Heat Treated)
3 Bar Wide
3 Bar
5 Bar (Heat Treated)
6 Bar Curved (Heat Treated)
6 Bar Curved
nordic spruce sauna with 2-bar abachi backrest
cedar sauna with 2bar backrests
custom finnleo euro sauna with 2bar backrest
custom finnleo cedar sauna with 2 bar backrest and valence lighting
custom cedar sauna with 3 bar backrest
custom cedar sauna with 3 bar backrest
custom clear western red sauna interior
clear hemlock sauna with window and 3 bar wide backrest
cedar 3 bar wide backrest
custom cedar traditional sauna interior
clear canadian hemlock sauna with 3 bar wide backrest
finnleo 5-bar heat treated backrest
our showroom sauna left bench
3 bar wide heat treated backrest
custom finnleo cedar sauna w/ all glass front and 3 bar wide heat treated backrest
finnleo euro hemlock sauna interior
right wall on cedar sauna
clear canadian hemlock sauna interior with deco interior
finnleo black taika sauna
custom black taika sauna
custom finnleo euro sauna interior with cedar
finnleo 6 bar curved backrest in cedar sauna
custom cedar sauna with himalaya heater
finnleo euro cedar sauna with 6 bar curved backrest
finnleo 6 bar curved sauna backrest
curved sauna backrest with LED strip lighting
large custom hemlock sauna with two glass windows on front
hemlock sauna with bench skirts
nordic spruce sauna
custom finnleo black taika sauna with hemlock benching and bench skirts
custom cedar sauna remodel with bench skirts