NorthUp Core
Our easy-to-assemble sauna kit. From $5997 (Includes stove)
A Better Way to Sauna.
Fast HeatLow thermal mass material heats to 200°F in only 30 minutes.
Natural Light360° views of sky,woods, water, and stars
Perfect SteamSealed shell holds heat and steam better than a traditional build.
True PortabilityBuckles apart in minutes. Stores. Moves with you.
Every Detail Has a Reason.
View the full design details and specifics here.
Ventilation
Circular 4-vent patented ventilation system distributes air evenly. Adjustable to find your perfect steam, air it out after your session, or keep in the heat while you fire it up.
Quick-Lock Buckle Assembly
Five panels buckle together in minutes. No screws, no contractor. Customers report full assembly in under 30 minutes.
Clear Polycarbonate Shell
Durable, shatterproof architectural-grade material. Less thermal mass than wood, so it heats faster. Direct sun can warm the interior up to 75°F above ambient before the stove is even lit.
Oh, and it allows for natural light everywhere you look.
Dual 6-foot benches
Sit up with friends or stretch out solo. Western red cedar, comfortable at full temperature.
Top bench located at the hottest point in the sauna. Sit where the heat lives.
Door on the short end
Smaller and deliberately placed so rising heat stays in when you step out for a cold plunge.
Seamless vapor barrier
One continuous shell holds heat and steam. Wood saunas have hundreds of joints that expand, contract, and leak over time.
NorthUp Core
Assembles in Minutes.
Delivered as only 5 panels, the Core buckles together in minutes with a quick-lock system. No screws, no full-weekend build, no contractor required.
Set it up for the season, take it down when you need to, or bring it with you to the cabin, a new home, or your next event.
As Seen In
Specifications
Seating
4-6 adults
Footprint
6' W x 6' 4" L
Height
7' 1" (~9' with chimney)
Weight
~500 lbs
Shell
Architectural-grade polycarbonate
Flooring
Non-slip flooring (optional add-on)
Structure & benches
Western red cedar
Stove options
Harvia Cilindro 8kW electric or M3 wood-fired
Warranty
1-year structure, 2-year heater
Assembly Required
Assembles in minutes with quick-lock buckle system.
Frequently Asked Questions
Questions not answered below? Review our full FAQ here.
We believe this is the easiest sauna kit to assemble on the market.
The buckle system makes assembly take minutes instead of hours without the need for any tools.
We do recommend finding a friend as the panels are easier to handle with two people.
Pickup free of charge at our shop in St Louis Park. Requires either a drop-down trailer or rental of a forklift at our site for a fee.
We ship anywhere in the USA. Contact us for a shipping estimate to your zip code.
Short answer - yes it is safe.
While certain plastics like PVC and acrylic are not rated for sauna temperatures, polycarbonate is meant to be used in high-heat environments and trusted in commercial architecture, healthcare facilities, and medical device manufacturing.
We didn't just take our manufacturer's specs at face value, we hired an independent Certified Industrial Hygienist tested our sauna at 246°F, measuring 74 VOCs against the strictest safety standards in the industry. Every VOC was negligible or non-detectable. Read the full report here.
Additional bonus - the material is shatterproof and virtually unbreakable. We once had a tree fall on a client's sauna and it didn't break!
Electric stoves requires a licensed electrician to install a 220V/40A breaker.
Wood-fired stoves require nothing but seasoned wood.
Chat with us about the tradeoffs.
All NorthUp models are lightweight and do not require a permanent foundation. Note that the Core base model comes without a floor. Many build their own or place on an existing deck/platform. Option to add non-slip flooring.
We recommend choosing a spot that is level.
Options for foundation include:
- Patio pavers, blocks, or gravel to prevent settling
- Decking
- Concrete foundation
- Directly on the grass/dirt (not recommended long term)
Sauna should be 10’ from all combustibles at or above chimney level if purchasing a wood-fired sauna. No requirements for electric sauna.
Certain municipalities require setbacks from property lines, water, or other structures. Our structures can usually either be considered temporary or are below square footage cutoffs to avoid permitting. Check your local building codes.