Sauna Cost Calculator
Customize your sauna and see your price estimate
Home Sauna Cost: A General Guide
A sauna’s price comes down to a handful of factors: size and how many people it needs to seat, the stove (wood fired or electric, standard or upgraded), whether it’s mobile or permanent, and which add ons you choose, from a dressing room to windows to power. Every build here starts with the same base: a red cedar hot room, a steel roof, and painted siding, so the add ons above are what move the price from there.
Both mobile and backyard saunas start from the same base price, $12,400. Going mobile adds $2,500 for the trailer itself, which brings a mobile build to $14,900 before any other add ons. From there, the same options apply either way, a dressing room, windows, vents, power, and stove upgrades all cost the same whether the sauna sits on a trailer or a foundation, so the trailer premium is really the only price difference built into the choice itself.
Use our sauna builder to put together your ideal setup and get a price estimate in real time. Add the options you want, see what it costs, and send us your build when you’re ready. We’ll take it from there.
Mobile or Backyard: Which One Fits You
The customizer starts with this choice because it shapes size, delivery, and where the sauna can live.
Mobile sauna (with trailer)
Built directly onto a trailer, so it’s ready to tow behind a truck wherever you want to use it. There’s no foundation to prepare and no fixed spot to commit to. Park it in the driveway through winter, tow it to the lake for a weekend, or bring it to a rental job. If you move, or want to rent it out, the sauna goes with you. The $14,900 covers the frame, axles, and everything needed to make it road ready.
Backyard sauna (no trailer)
Built as a permanent structure and installed on a prepared foundation, gravel, pavers, or a poured slab, right where you want it in the yard. Since it stays put, it adds a permanent feature to the property, one that future buyers notice too. It also isn’t built to travel on the road, so the same footprint can support a bit more room inside.
ADD-ONS
More Than a Hot Box
The extras that turn a sauna from a heated room into a place you actually want to spend an evening in.
Dressing room
Adding a dressing room runs $3,500, and it changes what happens before and after your session more than any other single add on. It’s an enclosed space attached to the sauna where you change out of your clothes, hang towels, and warm back up before heading inside, or cool down and get dressed again afterward without doing it in the open air or the cold.
It also keeps the main sauna room itself drier, since wet swimsuits, boots, and towels stay in a separate space instead of piling up on the benches. For anyone using the sauna through a Minnesota winter, this is less a luxury and more the difference between a uncomfortable dash through the cold back to the house and an actual transition in and out of the heat.
Porch (instead of a dressing room)
A porch is the alternative to the dressing room: instead of an enclosed room, you get an open air space built right onto the sauna. It’s where the session continues after the heat does, a spot to step out to between rounds, cool off in the open, and watch whatever’s happening outside, the fire pit, the yard, the snow, before heading back in for another round.
Some people end up spending as much time out on the porch as they do inside the hot room. Let us know if you’d like the porch priced out for your build, since it isn’t broken out separately in the current builder pricing.
Picture window
A picture window, at $1,200, is placed in the main sauna room, and it’s a small change that shifts the whole feel of the space. Instead of four closed walls, you’re looking out at whatever’s beyond them: the lake through the trees, snow falling while you sweat, the woods going dark as the evening session runs long. It doesn’t change the heat or the löyly, but it changes what the twenty or thirty minutes inside actually feel like, less like sitting in a sealed box and more like being outside without the cold reaching you.
Dressing room window
For $1,200, a window in the dressing room does the same thing for that space that the picture window does for the hot room, just in a quieter way. Instead of a dark utility room you pass through, it gets daylight, so getting changed feels like part of the sauna experience rather than a step you rush through to get back outside or into the heat.
The Air Behind the Heat
Every sauna is vented through the floor as standard, and that part isn’t optional. It feeds the stove the fresh air it needs to burn cleanly, and it keeps a steady supply of breathable air moving through the room while you’re inside with the door shut and a fire going. Without it, a sealed hot room gets stuffy fast, moisture has nowhere to go, and the wood interior takes on dampness it doesn’t dry back out from between uses. The vents below build on that baseline, giving you more control over how the air moves once you’re actually using the sauna.
Exhaust vent
For $200, an exhaust vent gives the room a fast way to purge hot, humid air, working a bit like a chimney draw, pulling built up heat and moisture out quickly instead of letting it linger after you’ve thrown water on the rocks. That matters most between rounds, especially if you’re pairing the sauna with a cold plunge, since you can drop the temperature and clear the air fast before going back in. It’s also what makes the bake and breathe method work: run the sauna hot with the vent shut to bake moisture and buildup out of the wood, then open the vent and let that humid air breathe back out. It’s a simple habit that keeps the cedar smelling clean and cuts down on the mildew and mold that build up in a room that’s regularly hot and wet.
Circulation vent
A circulation vent, also $200, works together with the floor vent to pull cooler, fresh air in low and push stale air up and out, rather than letting it sit in pockets around the room. Every sauna runs hotter near the ceiling and cooler near the floor, that part is normal, but without circulation, the gap between the upper and lower bench can be bigger than it needs to be, so whoever’s up top is sweating hard while someone on the lower bench barely feels it. Circulation narrows that gap, so the heat feels more even no matter which bench you’re on, and it keeps the air itself from turning stale or heavy over a longer session.
Power Your Löyly, Your Way
Solar Power
Without any power option, there’s no lighting once it gets dark and no way to charge a phone or run anything electric out there. Solar, priced at $3,500, solves that without needing an electrician or a trench dug for a cable. The package includes a solar panel and a 12 volt battery with a voltage indicator, so you plug in the panel and you’ve got dimmable lighting for evening sessions and USB charging for small devices, all off grid. That matters most for a sauna parked somewhere without power nearby to begin with, a driveway, a lakeshore, a cabin lot, since solar means you’re not waiting on a utility hookup to actually use the thing after dark.
Shore Power
Shore power, at $1,200, is the option for a spot where running an extension cord is easy but you’d rather not deal with a battery and panel. It includes dimmable interior lighting, an exterior porch light so you can see your way to the door, and a 120 volt inlet, so it draws off your house or a generator the same way any other appliance would. It also handles a heavier load than the solar setup can, which matters if you’re planning to add anything else down the line that needs steady power rather than a battery.
Choosing Your Stove
The Wood Stove that ships standard does its job, but daily use and hardwood wear it down over a few years. The upgrades below are built for the opposite: stoves meant to outlast the sauna around them and get handed down rather than replaced.
The Kuuma Low Profile comes out of Tower, MN, and sauna purists rank it among the finest wood burning stoves made in North America. A secondary combustion system gives it a clean burn and a soft, enveloping löyly. Every unit is serialized, and its high rock capacity keeps the heat deep and consistent.
The Nippa WB-15 comes from Michigan’s Upper Peninsula, from the oldest wood stove maker in North America, and it’s built to outlast the sauna itself. It runs hot and hard, with heat that stays consistent long after the fire’s been stoked, plus a cast iron door and gold toned branding that give it a rugged, industrial look.
Make It Yours
The builder above covers the choices that change what the sauna does. Once those are set, there’s a second layer of choices that change how it looks, and that part is wide open.
Roof color. Roofing is Pro Rib steel panel, available across the standard color range. Pick a shade that matches the trailer, the house, or just stands out on its own.
Siding color. Siding can be painted any color you want. There’s no fixed swatch list to choose from. Tell us the color you’re picturing and we’ll match it.
None of this is locked in by the estimate the builder gives you. The layout, power, and stove decide what the sauna can do. The colors are where it becomes yours specifically, down to the shade on the roof and the paint on the walls.
Traditional Sauna vs Infrared Sauna
Traditional Sauna
A traditional sauna heats the room itself with a wood fired or electric stove and hot rocks, reaching higher temperatures with real steam (löyly) when water hits the rocks. It generally takes 30 to 45 minutes to heat up before a session.
Infrared Sauna
An infrared sauna works differently. It heats your body directly with infrared panels instead of heating the air, runs at a lower temperature, produces no steam, and heats up in about 10 to 15 minutes. It also plugs into a standard outlet, without the dedicated electrical or ventilation work a traditional sauna needs.
The two fit different needs. Infrared suits shorter, more frequent sessions in a smaller footprint, often indoors or somewhere installation options are limited. A traditional sauna is the choice for the full Finnish sauna experience: higher heat, real steam, and a build made to sit in a backyard or travel on a trailer.
Frequently Asked Question
How much does a sauna cost?
Every build starts from a base price of $12,400. Going mobile adds $2,500 for the trailer, bringing that to $14,900 before any other add ons. From there, options like a dressing room, windows, vents, power, and stove upgrades build on top, so the final number depends on what you choose. Use the builder above to see an estimate for your exact configuration.
Is the price from the builder a final quote?
It’s a planning estimate based on the options you select. Once you send us your build, we confirm the final number with you directly before anything moves forward.
Does delivery cost extra?
Delivery is free within 300 miles of the Twin Cities for a custom sauna. Beyond that range, we’ll quote delivery based on your location. Rentals get free delivery within 10 miles of Golden Valley, with a delivery fee applied beyond that.
Do you offer financing?
Yes. We offer flexible financing options so you do not have to wait to bring the heat home. You can prequalify directly on our website.
What foundation does an outdoor sauna need?
A compacted gravel pad, concrete pavers, or a poured slab all work, as long as the base is level and drains water away rather than letting it pool underneath. The pad should be slightly larger than the sauna’s footprint.
How much does it cost to run a sauna once it's built?
A wood fired sauna costs very little day to day, since it heats with wood rather than electricity. An electric stove draws more power, typically in the 4 to 12 kW range for a home sized unit, so a session including heat up time adds a few dollars in electricity depending on local utility rates. Solar power for lighting and charging doesn’t add to that at all.