Custom outdoor and indoor saunas — Finnish in soul, with real löyly — plus ice baths, chillers and accessories. Designed, built and delivered across Thailand by the same Finnish-rooted team since 2020.
Take a 2-minute quiz — discover your sauna spirit, or get a real model recommendation and price.
Fah, Narak and Barrel — built to your dimensions, wood and heater.
Cedar, teak and stainless plunge tubs — Finland's winter ice-hole dip, rebuilt for Thailand.
½ HP to 2 HP — sized for Thai ambient. Hose, filter and starter kit included.
Electric and wood-fired sauna heaters, sized to your room — stones and controls included.
Buckets, ladles, stones, controls, lighting, signage and more.
Build your sauna in the browser — pick size, wood and heater, get a price instantly.
Use the 3D designer or send us a sketch. We work to your wall, your power, your space.
Hand-built in our workshop, the way saunas are made in Finland. We use teak, pine and red cedar — kiln-dried, food-safe finishes only.
Delivered and installed nationwide. Heater wired, first heat-up with you on-site.
Every Sisu wall is a factory-built sandwich panel. A welded 50 mm box-steel skeleton carries the structure, insulation fills every cavity, a foil vapour barrier seals the hot side, and both faces are boarded with plywood and clad in real wood. Rigid, straight and insulated — built for Thai heat and humidity.
Animated cross-section — the actual construction of every Sisu wall panel.
The same 3D model you configure in the designer is the sauna we hand-build. Drag the handle to compare — or just watch it change.
3D Design
Built by Sisu
Panoramic commercial sauna
Your sauna arrives as finished panels and goes together in the same order as our real installation guide — from your level concrete pad to the first heat-up.
Typical on-site assembly sequence of a standard sauna.
A chiller plumbs into any shower head. Switch it on, wait about 20 minutes for the water to run ice-cold, then step under a fresh, flowing stream — no ice, no tub, no waiting for a fill. Because the water is always fresh and never shared, it's far more hygienic than an ice bath.
How it works: chiller → any shower head → ice-cold water.
Teak · 2000x2000 mm · Jomtien, Chonburi
Pine · 1800x1700 mm · Chiang Mai
Pine · 1200x1700 mm · Koh Phangan
Pine · 2200x2200 mm · Bangkok
Teak · 2400 mm · Mae Sai
Teak · 5000x2000 mm · Bangkok
A thin 38 mm solid wall might look fine on day one — but it won't stay that way. Here's what proper insulated construction actually does for your sauna.
Thailand is already hot — so why a sauna? Because outdoor heat and sauna heat are nothing alike, and the benefits go far beyond temperature.
Thinking about a sauna but unsure whether to buy custom-built or an imported flat-pack? Here's an honest side-by-side to help you decide.
Teak handles steam-room humidity better than almost any other wood — but it's not maintenance-free. Here's an honest look at why it works, where it falls short, and how to care for it.
Electric heaters are the practical choice for most Thai sauna builds — but wood-fired is available, and a gas option is on the way.
Unlike a built-in kitchen or that sofa you'll never move again, a Sisu Sauna is built in sections — so when you move house, it comes with you.
The complete designer covers every Fah, Narak and Barrel build — glass, heater, benches and more, with live pricing and instant quotes.
Open the full 3D builder →