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Assembling the prefab outdoor sauna kit instructions

We've made our outdoor sauna kits assembly as easy as it gets

See our 10 Steps to Building the DIY Prefab Sauna Kit videos and article.

IMPORTANT: First note that the exterior size of our prefab modular saunas is 8" wider and longer than the size in the title of the prefab sauna kit product. In other words, a 5'x7' prefab sauna is 5'x7' on the INSIDE, the OUTSIDE or exterior measurement is 5'8' x 7'8" — 8" more. In a 5'x7' sauna, this means 8 more square feet to relax and stretch your legs out!

The 10 Steps to Building the DIY Prefab Sauna Kit videos and article does a very good job of explaining the progression.

You may notice that we built a wood base for this sauna demo, but you can use bricks, pavers, cement, tile, and pack gravel with pressure-treated wood. In fact, wood is great because you could relocate your sauna.