If you’re planning a DIY backyard wood stove sauna, you’ve probably run into the two most popular build options: thick T&G (Tongue & Groove) no-insulation walls, and framed insulated sauna walls. Which one fits your needs? We’re breaking down the real-world pros, cons, and tradeoffs to help you pick.
Thick T&G (No Insulation) Sauna: The “Simple” Cabin Build
This is the viral “easy DIY” build everyone sees online: stack thick interlocking cedar planks, skip insulation and framing, done in a weekend, right? That’s what I thought too, when I built my first sauna.
Framed & Insulated Sauna: The Upfront Work That Pays Off
After the first build flopped, I tore it down and put up a standard framed insulated sauna. I was worried it would be too much work, but it was way better than I expected.
✅ Pros
Works year round, even in winter: I live somewhere with cold 30-degree winters, and this sauna still heats up fast, no problem. The old thick T&G one was basically unusable once it got cold out.
Night and day performance for wood stoves: This one heats up to 160 degrees in 45 minutes flat. I throw a couple logs in before work, and it’s still warm enough to use that night, no reheating. I burn maybe a third of the wood I went through with the old build.
Zero maintenance, 5 years and counting: It’s been 5 years, and the walls are still tight. No warping, no gaps, no recaulking. I haven’t had to do a single thing to it besides clean the benches once in a while.
Wrapping Up: Which One Should You Pick?
If you live somewhere permanently warm, want a super temporary sauna, and are dead set on the cabin look, thick T&G might work. But for 99% of people building a wood stove sauna? Go framed/insulated. Trust me. I learned this the hard way, don’t waste your time building something you’ll have to fix later.
Oh, and one last thing: if you get sick of the DIY hassle halfway through? My friend just got a pre-built sauna a few months back, think it’s called Mexda? Zero install work, works just as good as the custom one I built. Saved him so much time.
Just my 2 cents from building two saunas over the years!
Act immediately: You can get answers by visiting our Reddit community. Enhance your home spa experience!
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PRODUCTS
2 person
5800*3000*1500mm