A sauna is the most unforgiving small building there is: 190 degrees inside, Tennessee weather outside, and steam trying to find every gap between them. Built right, it's a daily ritual that outlasts the house's roof. Built wrong, it's rot with a heater in it.
Why a purpose-built sauna
Sauna kits and barrel imports exist, and some are decent. What a custom build gets you is a sauna designed for your yard, your users, and your heat preference, with the envelope details handled by people who fight moisture for a living. A sauna is 10% bench carpentry and 90% vapor management; we're very good at the boring 90%.
What our saunas include
- A real foundation: level, drained, and sized so the structure never moves
- Heat-rated insulation and a sealed foil vapor barrier, the sauna's actual defense system
- Cedar interior: benches, walls, and backrests in clear cedar that takes heat and moisture beautifully
- Correct venting: low intake, high exhaust, so the room breathes and the heat stays even
- Your heater, wired right: electric units on a properly sized circuit, or wood-fired with code clearances and a real flue
- A changing vestibule on larger builds: towels, hooks, and a buffer that keeps the hot room hot
- Exterior finished like everything we build: siding and trim matched to your house or intentionally cabin-dark
Typical uses
Post-workout recovery, cold-plunge pairing (we can plumb and platform for a plunge tub beside it), chronic-pain and sleep routines, and the honest answer: fifteen quiet minutes a day that belong to you. Saunas also pair naturally with pool houses; one building serving swim, sweat, and shower is a popular combined build.
What drives the price
Size and heater type first: a two-person electric sauna is the entry point, and wood-fired or four-plus-person builds step up from there. The electrical run for an electric heater is the hidden variable (they pull real amperage, and distance from your panel matters). Vestibules, plunge platforms, and premium cedar grades are visible line items in the itemized quote.
Build process
Site check and heater decision first, since it shapes everything. Then permits where required (electrical almost always, for electric heat), foundation, shell, wiring, the vapor-sealed insulation stage we're pickiest about, cedar interior, venting, heater commissioning, and a first burn-in before handoff.
A note on permits: requirements for finished buildings vary with your city and county, zoning, setbacks, utility connections, and the scope of the project. We confirm what applies to your exact address as part of every quote, and coordinate the permit when one is required. The finished backyard buildings overview covers this in more detail.