6.5 x 12 Mobile Sauna | Custom Trailer Sauna
Superior Mobile
The warmth of a full-sized sauna, built to move with you. The Superior 12ft is a compact, high-performance mobile sauna designed for flexibility, comfort, and real-world adventure.
3–5
Comfortable capacity
6.5 x 12
Efficient mobile layout
Layout
Optional changing room
Clear View
Custom window sizing & placement
Specifications & Design
Mobile Space Configuration Options
The 6.5 x 12 layout is compact, efficient, and easy to tow, but still comfortable once you’re inside. Most people use this model as a full hot room for 3–5 people, with good heat circulation and fast warm-up times.
If you want a little extra organization, a changing area can be added to 12ft models. It’s a simple way to keep towels and personal items warm and out of the way.
Window Selection & Lighting
Windows are placed to bring in natural light without letting heat escape. You can adjust the size and placement depending on your view, privacy needs, or how open you want the space to feel.
All window options are built for sauna conditions and help minimize fogging. Interior LED lighting keeps the space evenly lit for both daytime and evening sessions.
Read More:
Windows designed to eliminate claustrophobia, moisture & fog problems
Exterior & Interior Finish Options
The interior is finished with thermally modified wood, which holds up well to heat and moisture and stays stable over time. There are several wood options available depending on the look you’re after.
On the outside, the sauna comes standard with black metal siding for durability and low maintenance. Wood and alternate metal siding upgrades are available if you want a different style.
Engineered Excellence
Mobile saunas go through a lot—heating up, cooling down, and living outdoors. That’s why every BW Sauna is built with proper insulation, ventilation, and materials that are meant for sauna use, not general construction. The result is consistent performance and fewer issues over the long term.
Read More: What 10,000 hr of sauna building taught us.
Customization Options
Wood-fired or electric heater
Exterior metal or wood siding
Custom window sizing and placement
Optional changing room (12ft models)
Specifications Details
Robust
Steel Frame
8 Layer
Heat Design
Thermory All-Weather
Exterior & Interior Options
Highest Quality
Heat Options
Details that Matter.
Custom Wood Selection Options
Sauna was made to be more. A place where we go to reclaim our center and thrive.
A Lasting
Relaxation
Handcrafted
for You
Anywhere
you go
To enhance
active health
Improving
wellbeing
"Mobile Sauna"
as a verb.
We like to think of mobile sauna as something you do. That spirit of adventure brings it to the most extreme of places bringing contrast elseware unfelt.
Questions you might be wondering?
YES! That’s the awesome part. Many other mobile saunas will have inferior insulation, and quality and generally feel like a compromised decision. Our’s simply don’t. They bring 100% the quality sauna experience you’ll find in any luxury getaway spa. Without all the people, scheduling and nonsense.
For more information on this issue, please see “The health benefits of owning your own backyard sauna.“
This is where BW shines. Businesses buy from us due to the low maintenance and ease of use for customers. All benches, can be removed easily, and the floor mat removed to allow for a good clean. We recommend washing down the interior cladding periodically and ventilating to keep everything dry after each use.
For more information on this issue, please see “How to take care of your outdoor custom sauna maintenance tips.”
Our saunas come recommended with a wood stove for the heat output. We do offer external battery units to be integrated into the lighting systems to ensure you’re always able to turn the lights on when you need.
Mobile saunas usually do not use a lot of electricity with heat source being wood or gas. Most models consume between 500 to 1500 watts, similar to many household appliances, and are designed to be energy-efficient.
For more information on this issue, please see “How much electricity do portable saunas really use.“
We don’t know your personal life. But, we can say this. A lot of our customers treat their mobile saunas as home backyard saunas they take when they go camping, to their cabin, relatives or even just to the fire side lake. When home, they keep it on a backyard slab and use it 2-3 times a week, or some bring it into their regular daily routine. Depends how much Fin you got in you I suppose.
For more information on this issue, please see “How often should you visit the home sauna?“.
Portable saunas or trailer saunas are as safe as any camper is to a home. We only ask you don’t go sauna down the freeway.
For more information on this issue, please see “How safe are portable saunas.“
A mobile sauna is a portable structure that meets all the characteristics and requirements for traditional stationary saunas but does not require significant foundation work for its installation.
But what does this actually mean for us? To us, mobile sauna means no compromise. It isn’t a tent, or a compromised trailer shack on wheels. It should give every bit the high quality premium feel, just with the added ability to take that where you go.
For more information on this issue, please see “Why Own a Mobile Sauna in Minnesota.”
Our Story
A legacy of craftsmanship & excellence.
In an industry where anyone and everyone seems to be building saunas to make a quick buck, we’ve stepped aside to invest solely in building the best-quality saunas money can buy.
Passion
We’re second-generation craftsmen with a genuine passion for sauna.
Creativity
We consider every detail, blending engineering with artistry.
Intentionality
Purposeful design means every choice has a purpose and function.
Grounded
It's not about looks and status. We build saunas meant to serve you.
Meticulous attention to detail. Our team is focused, humble and hardworking.
Founder lead. Jayson stands behind his work. Or in front it in this case.
Nationwide reach. We’ve delivered to all corners of the country.
Personal passion. Our builds come from our own personal experience with sauna.
6.5 x 8ft Mobile Sauna ($37k+)
The Huron
The nimble and agile Huron is here as the entry-level outdoor mobile sauna. At 8ft, it fits nicely inside your garage or can be tucked away in your backyard.
6.5 x 10FT MOBILE SAUNA ($39k+)
The Ontario
The robustness of a full sized sauna, with the agility for finding that special place. Our 10ft custom portable sauna is ready to be your oasis.
6.5 x 12ft Portable Sauna (43k+)
The Superior
A balanced portable sauna for those who want the full experience. Comes with a cool down changing room and the best in handcrafted custom quality.
6.5 x 14ft Portable Sauna (47k+)
Gooseberry
The robustness of a full sized sauna, with the agility for finding that special place. Our 14ft, is our flagship custom mobile sauna.
Download Your BW 2026 Catalog
When you start exploring what a custom sauna could look like, you might already have that exact idea in mind: that perfect finish with a wide panorama window. Or something more true to its history, humbly nestled in the lakeside corner. Either way, we hope this catalog offers inspiration for your journey
