Sauna planning guides
Practical guides for planning an outdoor sauna before you commit to a footprint, heater, or materials order. These pages focus on international planning questions, not Sweden-specific building law.
Build a sauna: the practical DIY planning guide
Plan an outdoor sauna from footprint to first heat-up: foundation, framing, insulation, ventilation, heater sizing, and the checks to make before ordering materials.
Sauna permits: a quick international checklist
Understand when an outdoor sauna may need zoning approval, building permits, electrical sign-off, fire clearances, or shoreline/environmental review.
Sauna wood types: cedar, hemlock, aspen, and spruce
Compare common sauna wood types for benches, walls, ceilings, and exterior cladding before choosing materials for an outdoor sauna.
Sauna ventilation: fresh air, exhaust, and heater placement
Plan a practical sauna ventilation path with intake air, exhaust placement, heater convection, and drying airflow for electric or wood-fired saunas.
Sauna heater sizing: choose the right kW
Estimate sauna heater power from room volume, glass, insulation, climate, and warm-up expectations before choosing an electric or wood-fired model.