Sauna building Class

Learn how to build saunas and gain expert knowledge from master builder Rob Licht in an intensive 4-day class experience

Dates: Thursday, October 3, 2024 — Sunday, October 6, 2024

This is a comprehensive class with demonstrations, lectures and some hands-on experience. We will cover many aspects of building saunas including:

  • Design and layout of your sauna: Freestanding & Electric Saunas
  • Selection of the proper wood and other materials
  • Insulation principles
  • Interior wood paneling
  • The kiuas or sauna stove (emphasis on wood burning)
  • Safe clearances and chimney installation
  • Floor and stove wall masonry construction.
  • Mobile saunas
  • Benches, doors, windows and other sauna details
  • Using the sauna: usage, custom and etiquette
  • sauna culture, business, construction challenges and more… !

Class Fee:
$800 individual
$1500 couple/family rate

Location: 
At the Shop of Rob Licht Custom Saunas
8 Verizon Lane, Unit 1, Lansing, NY 14882

Class Schedule:
Thursday: 12PM to 5PM
Friday: 9AM to 5PM, lunch provided
Saturday: 9AM to 5PM, lunch provided
Sunday: 9AM to 1PM
Throughout the intensive days we will have break-out work sessions, time to answer questions, and coffee breaks. There will be opportunities for socializing after class and the option to take sauna at the shop and by the lake.
One evening, we will sauna and picnic at a local park on Cayuga Lake. Significant others are welcome to join us for this event.

Recommended prerequisite: We’re not covering basic carpentry (exterior framing), and basic metal working. If you lack these skills it is advised that you take a hands-on carpentry class. 

About the Teacher: Rob Licht has been taking sauna for 45 years and has designed well over one hundred custom saunas. Rob readily dispenses his knowledge to students and hopes to share his enthusiasm and expert knowledge of sauna with you. 

Rob Licht grew up near Ithaca, N.Y., inspired by the bucolic landscape of the Finger Lakes region. He fell in love with sauna and Finnish culture as a teenager at a local cross-country ski center run by a Finnish family. He has a Master of Fine Arts Degree from Cornell University and has been a practicing artist and teacher for over 30 years. He taught art at Ithaca College for 12 years and has also taught adult education classes in welding, art, and design. He began combining his love of sauna, his practice as an artist, and his skills acquired from working in the building trades into a sauna building business in 1995. Today sauna building is his primary focus and he is one of the leading east coast sauna builders and sauna building educator offering a plethora of information to his clients, and now students, from around the world.

Terms & Info: A $100 non refundable deposit is due at registration and payable via paypal or venmo. Your balance is due (via check in mail) a month ahead of time in order to attend the class. You will receive an email to pay the balance. In the event the class is under enrolled (6 or less), you will be informed and your deposit of $100 will be refunded. In the case the class is over enrolled we will put you on a waitlist and we will let you know a month in advance or sooner if you can attend. Class attendees will have the opportunity to buy our sauna building plans at 50% off. Class size will be limited to 12.

About the Shop: 3000 sq ft with 16 ft ceilings and two large overhead doors and outdoor spaces to ensure good air quality.

Lunch is included: Friday and Saturday. Coffee and snacks will also be available throughout the days of the class. We will accommodate basic dietary restrictions.

Sauna etiquette: About 4 people at a time. Bathing suits required and please bring 2 towels: one to sit on, one for drying off after cool-dip. Everyone will get a chance to sauna.

WHAT PEOPLE ARE SAYING…

“This was the best weekend. I learned so much and left feeling full of inspiration and conviction. We can do this y’all- the revolution is happening! I am so grateful to you, Rob and Scarlet, for working so hard to put together such a clear and digestible roadmap for all of us. And I am so grateful for having four days with the loveliest people to talk sauna. What a dream.”  —Erin, NC

“What an amazing weekend of sauna immersion. It was something special to be in an intimate group of like-minded folk focused on something that brings us such joy. Rob and Scarlet so well prepared and so packed with knowledge and hands-on experience! I was so impressed with the smooth and thoughtful delivery of information. Possibly the biggest take away I got was that there are many right and not so right ways to do things, in the end sauna building is an art as much as it is a science, which is why my sauna is so authentic in the experience.”  —Mark, MA

Rolling out the mobiles

Mobile Sauna traveling to the lake for a cold plunge
Traveling with one of our mobile saunas to the lake and delivering to new owners.

We have been building mobile saunas for the past 10 years! and because of their growing popularity and versatility, they now make up most of our business. Each unit is still handcrafted with many layers of details. The owners each get a unique product tailored to their specifications. It’s also an easy way to avoid zoning and permitting restrictions while avoiding the hassles of a site-built project. Investing in your dream sauna makes more sense if you know you can take it with you!

We hear from our customers all the time that their friends, family, and neighbors
are as excited as they are to have a sauna! 

Inside the hot room our mobile saunas looking out through the dressing room to the lake.
mobile sauna, wood-fired sauna on a trailer

For many people, owning a sauna feels like a bare necessity during the winter months!

Backyard mobile sauna steps away from home surrounded by dramatic rocks and fire pit patio perfect for entertaining.
This recent sauna build is just steps from the owner’s historic New England homestead. Our saunas are designed to blend in with the home and environment. The classic details of this historic house are elegant rustic with dramatic rock outcroppings and a fire pit, making for a perfect gathering spot.
Mobile sauna parked at an overlook
Our wood-fired mobile saunas travel well and can be parked in beautiful places
Ready for a cold plunge
Scarlet by the lake ready for a cold plunge

Having a sauna at home is a life upgrade that is low-maintenance.

Finnish Blue Sauna 5'x8' size
Our 5×8 ft Mobile Sauna parked in town with 100 gallon cold plunge tank.
interior mobile sauna by Rob Licht Custom Saunas with custom sauna stove
Interior of our larger mobile sauna. Our saunas can get as hot as you like with a large pile of rocks. We aim for 100°C / 212°F
We build handcrafted wood-fired and electric mobile saunas in Ithaca, NY and can be delivered in the US.
We build many mobile saunas in our shop in Ithaca, NY. Working in our 3000 square foot shop is more efficient than building on-site.
We build mobile saunas. Here we have 2 models of wood-fired mobile saunas built with locally sourced and non-toxic materials. These mobile saunas are built with the same attention as any freestanding sauna.
Two sizes of mobile Saunas on display at our shop in Ithaca, NY

We offer building plans for DIY sauna builders or your local builder for one-time usage only. Thanks to our valued sauna plan customers, and the growing popularity of DIY sauna building, we have taken the opportunity to launch our new & improved mobile sauna building plans! Our sauna plans are 50+ pages and include detailed notes, drawings, photos, and material lists for a wood-fired 5’x8’/6.5’x10′. If you are thinking about purchasing our plans or building a sauna, we offer you an opportunity to build your own sauna using construction plans. Rob Licht has developed the best practices of sauna building with 30+ years of experience.

sauna building plans >


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Cedar Woes

Large Commercial Sauna by Silver Lake with STK Western Red Cedar for interior walls and Clear for benches

When we think of Sauna, we generally think of a wood-lined room heated by an electric or wood-fired kiuas (even though my last post was on the discovery of an old smooth plastered sauna.) The wood is integral to the experience—for the aesthetics of its look, its pleasant smell, and ability to take the humidity and temperature extremes. But all wood is not alike, and the question of what kind of wood to use always arises. The answer to that question, like everything else these days, is changing.

Typically in the US, especially in the generic gym and hotel saunas, and home kit saunas, Western Red Cedar is used. As its name implies, it is from the western US and Canada. All lumber is graded and each board is stamped as it runs through the mill. The grade indicates species, appearance, mill, and strength of the wood. The letters A-D are modified by Select, Clear and STK (select tight knots). For cedar saunas, it will be either a clear select grade or STK, the latter being almost half the price of the former. Cedar is also produced mainly for exterior siding applications and comes with a textured surface on one side that, unlike the sawing pattern of rough sawn lumber, is applied in the mill after sawing. This rough surface is considered the “good” side to which the grade applies. A big frustration with cedar is that I want the smooth side facing out and, since the board is graded to the other side, there is no guarantee that the smooth side has the appearance that the grade indicates.

Western Red Cedar (clear select) with many variations of color and stripes
Western Red Cedar, graded clear select with many variations of color

Color in cedar varies a lot: one side can be red and the other have annoying stripes of white wood. Clear select grade A boards will be better, but they come at a premium price, currently about $12-15 a board foot (12’x1 ft x1” thick, nominal dimensions). For years I have typically used Western Red STK for the walls and maybe Clear Select grade on the benches. This wood comes from either Idaho or British Columbia (BC). STK is likely from managed (regenerated) forest plantations and Clear Select is from larger old growth trees in BC. There is a guilt factor here I consider, so I veer towards STK whenever possible. (I also use Northern White Cedar frequently in freestanding saunas and our mobile saunas but that is the topic of another post.)


Cedar has been touted for its stability in the heat—which is true, and because of its low density, it doesn’t get hot to the touch—an important feature in a hot room with bare flesh touching the walls and benches.


Wood is a global commodity affected by the stock markets, inflation, building trends, shipping woes, fire seasons and the whims of political leaders who set tariffs as a way to taunt each other. You can make a career (and people do) out of studying the ebb and flow of lumber supply and prices. Add to this mix the pandemic and you have a roller coaster of unpredictability. The information I gleaned from building ten or twenty years ago I can no longer rely on. Suppliers have come and gone, quality has gone down and prices go mostly up.

The Pandemic created a real change in the labor force as well. There was never a shortage of raw lumber-logs but as workers and truck drivers got sick or just quit, mills shut down and logs piled up. The calculus used to predict building trends was skewed by everyone staying home and building decks with their pandemic relief money and we all saw prices soar while availability of lumber, especially cedar, shrank. In the meantime, the cedar I could get has been showing up with major defects, some from the mill, some from very poor handing: fork lift stabs are so common I have to over-order for very job. I assume this is the result of experienced older workers leaving the work force and being replaced by a cohort too inexperience to understand that the 6-board bundle they just mangled cost me more than what they make in two days. Some days I feel like all I make is very expensive kindling.

Cedar graded side up (rough) with damage
Cedar, graded side up (rough) with shipping damage

The truth is, in Finland, the source of my sauna inspiration, they don’t even have Western Red Cedar. They have soft wood species similar to what we have—spruce, pine, fir (SPF) but, in general, the quality and nature of wood varies by region. Wood from northern climates grows slower and has a denser grain.


As in Scandinavia, trees in uniformly dense forests have straighter grain as the trees race to reach up for the sun. Compare a “lone wolf” white oak, with its sprawling branches, to a deep forest oak.


Norway Spruce is the wood choice for many Finns, as are Alder and Aspen, which are soft hardwoods. The latter grow bigger there than our typical Aspen and Alder which rarely found at local mills. Cedar has been touted for its stability in the heat—because of its low density, it doesn’t get hot to the touch. But now Scandinavians have started using a thermal process of using heat and steam to modify wood and make it more stable and rot resistant (or so the web pages claim). I suspect there is also a Scandinavian work ethic at play: working in the trades there does not carry the same stigma as being a high school dropout, as it does here, and attention to detail and quality are paramount. Call it the IKEA effect.

Soft hardwoods: Spruce, Aspen and Alder used for sauna interiors in Europe

Thermory and Lunawood are two brands available now in the US. The shipping crisis (highlighted by a boat getting stuck sidewise in the Suez Canal) has calmed down so now the economy of having quality wood freighted in containers from the Baltic’s to you (via a US distributor) probably makes more sense than wasting your time perusing the aisles of a big box store (or several) to glean out a few good cedar boards from a pile of fork lift-stabbed firewood. I also measure the time I spend trying to hide defects as I install the wood. While I still want to get all of my materials as locally sourced as possible, we are now in a global economy and looking abroad is certainly starting to make more sense to me. —Rob


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The Mystery Banya of Van Buskirk Gulf

The town of Newfield, just south of where I live, is known for its rolling hills, deep gullies and rugged forest. When I used to live there I’d ramble about the woods and back roads that thread their way through sparsely populated forest. Just south of there is Spencer, known for its many Finns who settled there in the early 1900’s. Mostly these Finns came east from Michigan in search of better farmland and a life that did not include mining. You can still make out saunas behind the old farms: small wooden outbuildings with a tell-tale-chimney. Some are still in use; others are slowly falling apart, as rural structures tend to do.

At the bottom of Van Buskirk Gulf, on a stretch of seasonal road, next to the creek, is a curious arrangement of structures. One is a beautiful old stone bridge dating to 1818— the oldest in the county— that was restored several years ago. Overlooking this is an abandoned stone house; the windows shuttered with plywood and the insides littered with graffiti. Although it echoes the stonework of the bridge, county records show it was built in 1865.

Across from the house and alongside the creek sits the main object of my curiosity—
an old steam sauna or banya.

Rob Licht in bathing room of an old Banya found in Newfield, NY

Unlike the old wooden saunas, this building is built from tile block and concrete with a beautifully plastered interior. The plaster, which is over metal lathe, has a smooth eggshell finish that is only typically found in high end homes that predate the use of drywall or plaster board. The metal lathe came after the use of wood lathe. My Guess is the 1930’s-40’s. The layout has an entryway where one would undress and relax. A room to the side has a small door in its far end leading to a fire chamber below the sauna room. This is where the firewood must have been stored and the fire tended to.  Beyond the dressing room, up three steps, was the bathing room. It is all plastered, including the bench, with an arched ceiling and soft curves. In the center along the interior wall, above the fire chamber, is the heater that features a large rock chamber.

The fire would pass over these rocks until they were ready to use, then, once the fire died down, the iron lid was lifted and water would be thrown on the rocks to produce steam.

This is the same as modern heat storage heaters. A side door from the dressing leads directly to the creek. Remnants of a heat exchanger tell me that hot water was also available to bathe with.

Up the creek is the remains of a large dam structure.  Was this a work camp of some sort? Were Finns (or Russians) employed nearby? Was it a mill site? Perhaps it was built during the CCC (Civilian Conservation Corps) era of the 1930’s when many trails were built in nearby parks. I can imagine a group of workers enjoying the steam bath after a hard day’s work and plunging into the creek.  I can also imagine fixing it up and returning it to use. If anyone has any answers, please share them!

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Reference: Melissa Ladenheim, The Sauna in Central New York, Dewitt Historical Society of Tompkins County. Ithaca, NY 1986.

Sauna Builder’s Year in Review

Ice Lantern and Saunas at Rob Licht Custom Saunas
It’s been a busy year at Rob Licht Custom Saunas and as the holidays approach it is a good time to look back everything that’s been accomplished, the hurdles we’ve gotten over, and to be thankful for the blessings we’ve received.

We started the year in the midst of the pandemic which made for some challenges but mostly the pandemic has meant a huge uptick in the sauna business as we all became more centered on home life and more reluctant to go out into public for things like gyms and saunas. Besides the several projects I have completed locally and around central New York I have fielded calls and emails from folks desperate to have their own saunas from as far away as Europe and Australia. I never set out to become a sauna expert, but here I am, 25 years into making them, and people are seeking out my knowledge from all over. In the process I feel like I have made many new friends. The global sauna community is alive and well. At the same time, due to the pandemic, I have mostly refrained from seeing all but my closest friends and family. It’s a strange new world but I am thankful to be connecting to so many people, if only on Zoom.

For my new friends I have designed and consulted on saunas from Maine to California— that has kept me busy when I was not getting my hands dirty. But whenever I can, I am working with my hands, either in my 3000 square foot shop, which I am ever grateful for, or I am on jobsites. It used to be that builders would simply stop in the winter and spend the dark months sitting around the woodstove reading back issues of Fine Homebuilding, but now we all seem to be out there in any weather. My cut off is 10° F; any colder and I want to be by a fire, in the sauna, preferably. Good gear helps; I’m especially grateful for my boot warmer and insulated pants.

Mobile Saunas on display at Rob Licht's Shop in Lansing, NY
Mobile Saunas showcased in the shop. Lansing, NY

Nothing I do is cookie cutter—I would die of boredom is life was too easy— thus the custom in my business moniker. This year I seemed to run the gamut of sauna permutations: First, a garage retrofit to a Yoga and sauna retreat, then a quiet walkout basement electric affair, then a classic one room wood burning sauna on a idyllic creek, then a more urban collaboration in Syracuse, followed by a tiny personal electric sauna in a bathroom, a rustic elegant wood burning retreat in the trees, and a distance job downstate. Currently I’m finishing up an electric sauna in a historic boathouse on Cayuga lake. I’m hoping to take it for a test drive, with a jump in the frigid water, by Christmas.

Yoga and Sauna Retreat
Garage Retrofit for Hot Yoga and Sauna
Idyllic Creekside Sauna
Classic Creekside Sauna set 50 ft from swimming hole. Idyllic.
Basement Electric Sauna with multi-tiered bench design and view of the gardens.
Walkout Basement Electric Sauna Bliss
Urban Backyard Sauna with electric heater imitating the architectural detailing of the house.
Backyard Sauna Design, Urban Collaboration in Syracuse, NY
Rustic Elegant woodburning sauna surrounded by trees
Rustic elegant wood burning sauna
Cozy interior of a backyard sauna

In between all of these I have sold a few of my Lämpimämpi sauna stoves and many sauna plans. DIY interests, especially in the mobile saunas which are really big now. I get a kick out seeing my designs being brought to life by many different hands. It is also fun to see all of the other builders following in my steps. The more builders, the better. There is plenty of work to go around and I encourage anyone who wants to take the work seriously to pursue it with a passion. I did offer a sauna building class this year but had to cancel; Covid has thrown a wrench into a lot of plans. But stay tuned: perhaps 2022 will be the year.

Covid also threw into a wrench into the supply chain. We’ve all heard the phrase “supply chain disruption” by now. I bid jobs in the beginning of the year only see to prices on materials I quoted go up by 250%. Some materials simply vanished from the shelves. But now things have settled down and I also started ordering and stock piling materials well in advance. I can keep several saunas worth lumber and supplies in my big shop and insulate myself from some of the inflation—another reason to be grateful for the big work space.

Rob at the shop!

I’ve been working alone for most of the year, which actually suits me fine, especially with Covid lurking. Workers are hard to come by: not only are the skilled trades losing new blood, but, I think, the pandemic relief made a lot people lazy and unwilling to get off the couch. Scarlet, now my partner in everything, has been my greatest blessing. When she can escape childcare duties she has proven to be the hardest worker I could wish for. I could use a few more workers like her: eager to learn, unafraid of dust and dirt and willing to sweat. She also manages all of the marketing, so give her the kudos for the web media you see. The business feels like it wants to grow so if anyone is seriously interested in building saunas and wants to relocate to Ithaca, drop me a line.

For those of you lucky enough to have a sauna, I hope you get to celebrate the New Year in it for there is no better way to bring in the new and shake out the old. It’s been my tradition for four decades now and I hope to continue for four more.

Scarlet by the Lake, ready for a cold plunge
Taking Sauna with Scarlet by the Lake, December 2021.

Follow the saunas on instagram @saunasbyrob