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.
Two easy ways to start. Open the 3D builder right in your browser — no sign-up, no software — and shape your sauna as you watch: size, benches, glass, wood and heater, with the price updating live. Prefer a hand? Send us a photo, a sketch or just your room dimensions and our team will design it for you, free. Either way we build to your wall, your power supply and your space, and send a clear quote the same day.
Approve the quote and a 50% deposit gets your build underway. Each sauna is hand-built to order in our own workshop, the way saunas are made in Finland — teak, pine and red cedar, kiln-dried, with food-safe finishes only. We keep you posted along the way, and the balance is only due once your sauna is ready to leave us.
Delivered and installed nationwide. Our team levels and assembles it on site, wires the heater, and runs the first heat-up with you — so you know exactly how to use it before we leave. Prefer to handle setup yourself? Delivery-only is available too.
Ready to start? Design it yourself in minutes, or let us do it for you.
We are a small Thai–Finnish crew building out of our own workshop in Surin, with a showroom in Bang Saen. We cut, frame, clad and finish every cabin ourselves, then deliver and install it with you on-site. No middlemen, no drop-shipping — just people who love saunas building yours.
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 needed. It's far faster than an ice bath: no filling a tub, and no waiting 4–5 hours for the water to get cold.
How it works: mains water → chiller → any shower head → ice-cold.
Teak · 2000x2000 mm · Jomtien, Chonburi
Teak · 1850x2350 mm · Hua Hin
Pine · 1200x1700 mm · Koh Phangan
Mixed wood · Varies mm · All over
Pine · 2200x2200 mm · Bangkok
Teak · 5000x2000 mm · Bangkok
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.
Electric heaters are the practical choice for most Thai sauna builds — but wood-fired is available, and a gas option is on the way.
Every Sisu Sauna ships with an interactive assembly manual built for your exact build — not a generic guide. Here's how it works.
Real electricity cost examples for 3–15 kW sauna heaters at Thai power rates — so you know exactly what to budget before you buy.
Design your custom sauna in minutes with our 3D builder — pick size, wood and heater, save your design, and we'll take it from there.
Good sauna ventilation doesn't need wall vents or roof holes. Learn how floor gaps and a door gap move fresh air in — and CO₂ out — naturally.
The complete designer covers every Fah, Narak and Barrel build — glass, heater, benches and more, with live pricing and instant quotes.
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