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Commercial Saunas for Gyms, Hotels and Resorts in Thailand
The sauna in a private garden is used four or five times a week by the same two…
27 Aug 2026
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Indoor Sauna
A 46 mm insulated indoor cabin with a full glass front, made to order in 3 standard sizes and delivered duty paid to your door, 8-12 weeks from deposit. Choose below; the price and power follow every choice, and the link remembers them.
Need a custom size or a bigger sauna? Book a Consultation or Contact Us.
Building your Indoor sauna in 3D…
Photos The model
Photos of the Indoor
The 3D model above is your configuration. These are photographs of the model; drawings and photos of your own unit arrive on your order page as it is built.
01 What you are buying
A 46 mm wall, layer by layer.
Most indoor saunas sold in Thailand are a single board of timber. This one is a four-layer insulated panel: the heat stays in the cabin, the timber stays dry, and the room around it stays cool.
1 Cladding8
2 Insulation30
3 Lining8
Outside, the room46 mmInside, 80 °C
- 1 · 8 mmExterior claddingHemlock or Red Cedar, natural or black. The face that shows in your room.
- 2 · 30 mmInsulated frame with foil barrierRubber-plastic insulation foam between timber studs, foil facing inward to reflect heat back into the room.
- 3 · 8 mmInterior liningThe timber you see and touch. The same species as the outside.
Ceiling
- Flat insulated ceiling panel, the same four-layer build as the walls
- No roof or eaves — the cabin sits inside your room
- 1.90 m external height; check your ceiling clears it
Floor
- 100 mm insulated floor panel with a waterproof board and anti-slip strips
- Stainless steel floor drain and adjustable vent
- Needs a level floor; the panel does the rest
Glass
- 8 mm tempered safety glass across the front, standard
- 70 cm glass door with handle, opens outward
- Glass side walls at no extra cost, the same 8 mm
Benches
- The same timber as the walls: Hemlock or Red Cedar, as you choose above
- One bench across the back wall, the full width of the cabin: 45 cm deep on the 2-person, 50 cm from 3 people
- Hemlock: open front as standard, or a slatted fascia. Red Cedar: always fully enclosed, as the timber needs
- Hidden stainless fixings, rounded edges
Canadian Hemlock
Dense, pale and even-grained. Stable in heat and humidity; the cooler timber to sit on.
Standard
Clear Western Red Cedar
Clear grade, knot-free. The benchmark sauna timber: rich colour, naturally aromatic and rot-resistant.
PremiumAlso in every cabin: Wooden bucket and ladle, Sauna stones, LED near-infrared therapy light, Thermometer and clock, Smart control panel: app control, Built-in Bluetooth speaker, Stainless steel floor drain and adjustable vent.
02 Choose your heater
Recommended for :
Heater size follows room volume. Too small and the room never gets hot; too big and it overshoots and wastes power. We size it for you, and show what a session costs to run.
Room volume
Heat-up to 80 °C
Each glass side wall adds about 5 min
Per session
at ฿4.40/kWh: heat-up plus one hour. An estimate.
Stones
Included
Sauna stones and heater guard
The smart digital wall control panel runs the heater, lights and bluetooth speaker (some models only).
03 Will it fit
Measure once. We tell you which sizes fit and why.
Measure the flat area you have and the narrowest gate, door or stair on the way in. The sauna arrives as finished panels, so the way in matters as much as the space.
m
m
m
The height of the room it goes in.m
Gate, door or stair width.Need a custom size or a bigger sauna? Book a Consultation or Contact Us.
46 mm wallGlass
Largest flat panel
46 mm thick, carried on edge by two people.
Way in
0.80 m clear
Narrower than that, the panels go over by crane.
Space needed
W +0.10 m · D +0.85 m
Over the cabin's size: the door swing and a small working gap.
04 What's in the crate
Everything for your configuration, itemised.
Crate , . Not included: the floor, the power cable from your board, and a crane if the truck cannot reach.
05 Your part, our part
What you prepare, and what we do.
Your part
- A level floor. Tile, concrete or timber that carries loaded. Level across the footprint.
- A floor waste nearby. The cabin has its own drain; a floor waste or a gully in the room lets it run away.
- Clearance. About 7 cm behind for the panel and airflow, 75 cm in front for the door.
- A power run by your electrician. heater → → breaker → cable , . We do not do electrical wiring; this one-page sheet tells your electrician exactly what to run.
- Access cleared. A 0.80 m path from the kerb, with no steps unless a ramp or a crane is arranged.
- Someone home on the day. To sign for the crate and show the team where it goes.
Heater
Current
Breaker
Cable
Based on the heater selected. Change heater
Our part
- Build it to order. Made to order by our manufacturing partner to our drawings, with build photos on your order page.
- Deliver it duty paid. We handle the transport, customs and import duty. No extra bills on arrival.
- Deliver it free. Kerbside anywhere in mainland Thailand; the Gulf islands carry a ferry surcharge.
- Install it, if you choose. From ฿12,000 by region, 20% off at the moment. We book the build day with you, usually within a few days of delivery. How installation works.
- Stand behind it. Two-year structural warranty on the cabin; the heater and controls carry their maker's warranty, serviced from Chonburi.
| Size | Empty weight | Over footprint | Loaded |
|---|---|---|---|
| 2 people, 1.2 × 1.0 m | 350 kg | 292 kg/m² | 425 kg/m² |
| 3 people, 1.5 × 1.2 m | 400 kg | 222 kg/m² | 356 kg/m² |
| 4 people, 1.8 × 1.5 m | 450 kg | 167 kg/m² | 285 kg/m² |
06 Delivery
Order today, delivered in 8-12 weeks from deposit.
Made to order, so the timeframe is a range rather than a date. We confirm the delivery week once your sauna has landed in Thailand, and the day three days ahead.
Choose your region to see the delivery truck and the installation price. The same regions as the installation picker.
Kerbside, by truck
. The driver does not unload; our installation team or your people lift the crate off.
Tail-lift or crane
A tail-lift truck, or a crane when the crate must go over a wall, is arranged for you and charged at cost. Tell us about your access and we quote it with the sauna.
Islands
Koh Samui, Koh Phangan, Koh Tao, Koh Chang carry a ferry surcharge of ฿1,500, shown when you choose the Islands region. Phuket is bridged and delivers as mainland. About delivery.
07 Installation
Build it yourself, or we build it for you.
Do it yourself
Two people, . The panels are numbered and pre-drilled; nothing is cut on site. The heater is connected by your electrician.
- Cordless drill and driver, PH2 bit
- Spirit level, 1.2 m
- Step ladder, 2 m
- Rubber mallet, utility knife, tape measure
- Sealant gun (sealant supplied)
The assembly manual (EN/TH) and the numbered panel plan come in the crate and on your order page.
RonYen installation
One price by region, chosen in the configurator above — 20% off at the moment. The team builds the sauna, connects the heater to the supply your electrician has run, and tests it with you. We book the build day with you once the delivery is confirmed; it is usually within a few days of the truck, and a larger sauna can take more than one day.
| Northern Thailand | |
|---|---|
| Central Thailand | |
| Northern Isaan | |
| Southern Isaan | |
| Eastern Thailand | |
| Western Thailand | |
| Southern Thailand | |
| Islands (not incl. Phuket) |
Far from Chonburi? If you have your own builder, one RonYen technician can travel to lead the build for the day. Quoted with travel.
08 After you order
Your own order page, with build photos as it happens.
From the day your deposit clears you can see where your sauna is: drawings to sign, factory photos, the truck. This is what you will see.
Order RY-0000Today
Indoor Sauna,
Indoor Sauna ·
Production Started- Confirmed
- Queued
- Started
- 50%
- Completed
- Ready
- Delivery
- Delivered
Production photos
Week 1
Week 2
Week 3
09 See one first
Sit in one at RonYen Garden, Bang Saen.
About an hour and a quarter from Bangkok, 10 minutes from Chonburi and 15 minutes from Bang Saen beach. Book a session and try the heat before you decide.
- Saunas and ice bathsWorking, heated, in a garden
- Talk it throughSizes, timber, heater and your site
- By appointmentPrivate sessions, every day
10 Questions
What customers ask us
The 1.2 × 1.0 m cabin needs a floor area of 1.30 × 1.85 m and 1.90 m of ceiling height; add 0.10 m to the width and 0.85 m to the depth of any size. That covers the door opening outward and a small working gap; placed against a wall it needs only a little airflow behind it. The Will-it-fit tool above checks all 3 sizes against your room at once.
Yes, as a freestanding cabin. It stands on its own insulated floor with all four walls, and can be placed against your existing walls with a little airflow behind. It is not fixed to the house, so it can come out again. We do not build saunas into a room's own walls.
Yes. The panels unscrew, so two people can take it down in about half a day and rebuild it elsewhere. We can do the move for you; ask for a quote.
8-12 weeks from deposit to your door. We confirm the delivery week once your sauna has landed in Thailand.
Either you, with two people and a cordless drill — the panels are numbered and pre-drilled — or the RonYen team on the day it arrives, quoted for your site. Upcountry, one of our technicians can supervise your own builder.
A dedicated circuit sized to the heater. The page works it out for the heater you choose and prints the current, breaker and cable size for your electrician; 12 kW and above is three phase. We do not do the electrical wiring: your electrician runs the cable to the sauna and connects the heater.
A little. The cabin has an adjustable vent; the room it sits in wants a window or an extractor to clear the warm, damp air after a session, the same as any bathroom.
Two years structural on the cabin. The heater and controls carry the manufacturer's warranty, and claims come to RonYen in Chonburi, not to a factory abroad.
Made to order by our manufacturing partner, to RonYen's drawings and timber specification, and delivered with duty paid. Nothing is stocked and nothing is cut on site.
Yes. Prices include 7% VAT and we issue a full tax invoice in your name or your company's.
Your sauna: , .
A deposit of holds a production slot. The balance of is due before delivery.
