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Wall Construction 

It's funny, you never really think about the walls in a sauna but you should! 

Not only is this a way to spot a cheap sauna but having a well-built sauna will save you in your pocketbook. 

And in this chapter, I’m going to show you what you need to look out for and what the difference is between good and bad construction.


Wall Construction is a major component in determining quality and value in a far infrared sauna. This is where many manufacturers cut corners again.


Thin walls, (both the inside and outside walls) of the infrared sauna cabin are one of the most common shortcomings of inexpensive saunas. They just won’t hold up to the hot and cold temperature swings (70 – 140 degrees F) over time.

The majority of sauna manufacturers have inner and outer walls that are only 3-5mm thick. 
Thin walls are more likely to warp, bow, and split with sauna use over time.


Infrared Saunas with thin walls don’t hold the heat in the sauna cabin well. They are more expensive to operate and more prone to damage.


Thick Walls: Rocky Mountain Saunas offers residential infrared saunas with wall panels that are 7-9 mm thick. These walls are the thickest in the far infrared sauna industry, meaning your sauna will hold up beautifully for many years of use.

All lumber used in their hand-fabricated tongue and groove walls is Bay Clear, Center Cut, Grade 1, Vertical Grain. Vertical grain tongue and groove wood is more expensive and literally 4X stronger than Horizontal Grain or Reforested Wood used in price-driven saunas.

All the wood used to manufacture Rocky Mountain Saunas is guaranteed against defects in workmanship and materials for as long as you own your sauna!

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