sales@sauna.in.th
Sisu Sauna
Finnish soul · Hand-built in Thailand · Est. 2020

Saunas built around your space — not the other way round.

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.

Built by Sisu sauna.in.th

Which sauna is your kind of sauna?

Take a 2-minute quiz — discover your sauna spirit, or get a real model recommendation and price.

How it works

Pick a model, tweak the details, get a price — same day.

01

Design

Use the 3D designer or send us a sketch. We work to your wall, your power, your space.

02

Build

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.

03

Install

Delivered and installed nationwide. Heater wired, first heat-up with you on-site.

Inside our walls

The 100 mm wall: box steel, insulation, solid wood.

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.

  • Box-steel frame — 50 × 50 mm
  • Insulation core — 50 mm
  • Plywood — 13 mm, both sides
  • Foil vapour barrier — on the hot side
  • Solid-wood cladding — 12 mm, both sides
  • 100 mm total — one panel is 1000 × 2090 mm

Animated cross-section — the actual construction of every Sisu wall panel.

Design → Reality

What you design is exactly what we build.

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.

Panoramic commercial sauna Panoramic commercial sauna 3D Design Built by Sisu Panoramic commercial sauna
Drag to compare
On-site assembly

Installation is assembly, not construction.

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.

  • You A level concrete pad, ready before we arrive
  • You Mains power to the sauna by your licensed electrician — liability rules mean we can't connect the mains ourselves
  • Sisu Panels, roof, glass front and door — assembled by our own crew
  • Sisu Benches, heater, and the heater-to-control-box wiring
  • Sisu First heat-up together with you

Typical on-site assembly sequence of a standard sauna.

1/8 Level concrete pad — prepared by you Your side
Recent builds

Saunas we have designed & delivered

Beautiful Semi Outdoor sauna in Hua Hin

Teak · 1850x2350 mm · Hua Hin

View build

Site inspection in Bangkok

Pine · 2200x2200 mm · Bangkok

View build

Commercial sauna in Bangkok

Teak · 5000x2000 mm · Bangkok

View build

Boxing Champion bought our custom sauna in Jomtien

Teak · 2000x2000 mm · Jomtien, Chonburi

View build

A mix of our previous builds

Mixed wood · Varies mm · All over

View build

Red Cedar Indoor Sauna for a 134-Year-Old Bangkok Sports Club

Red Cedar · 3600x2500 mm · Bangkok

View build
View all projects
From the journal

Saunas, ice baths & the cold-plunge life

Indoor Sauna Ventilation: Keeping Your Room Healthy

Good ventilation in your indoor sauna room prevents moisture damage and mould — here's what to do, especially in Thailand's already-humid climate.

7 Jun 2026 Read

Sauna + Ice Bath: The Ultimate Hot-Cold Reset

Pairing a sauna with an ice bath amplifies the benefits of both — here's the science, the method, and how to get started safely.

13 Jun 2026 Read

Why Build a Sauna in Thailand's Heat?

Thailand is already hot — so why a sauna? Because outdoor heat and sauna heat are nothing alike, and the benefits go far beyond temperature.

13 Jun 2026 Read

How Much Does a Sauna Cost to Run in Thailand?

Real electricity cost examples for 3–15 kW sauna heaters at Thai power rates — so you know exactly what to budget before you buy.

13 Jun 2026 Read

Sauna Ventilation Done Right: Floor & Door Gaps

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.

8 Jun 2026 Read

Want a Chinese Sauna Imported? We Can Help

Already have a Chinese sauna in mind? Sisu Sauna can handle the entire import process for you — sourcing, shipping and customs. We'll send a full quote before you commit to anything.

13 Jun 2026 Read
View all articles
Watch

Saunas & ice baths in motion

Premium Red Cedar Sauna for a Bangkok Sports Club | Complete Installation

Premium Red Cedar Sauna for a Bangkok Sports Club | Complete Installation

Building a Luxury Barrel Sauna in Chaing Rai, Thailand | Complete Construction Timelapse

Building a Luxury Barrel Sauna in Chaing Rai, Thailand | Complete Construction Timelapse

View all videos

Want every option? Open the full 3D builder.

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 →