Oval Sauna Frodo 500 Thermo

Deepest Frodo, maximum interior space

Price

£12,395 inc VAT & Delivery Included

Complete DIY Assembly Kit

Every Order Plants 5 Trees

Professional Installation

Comprehensive Warranty

Free UK Mainland Delivery

Choose your installation

Choose your timber colour

Thermo Spruce

Choose your roof shingles

Terracotta

Umber

Forest

Graphite

Onyx

Choose your sauna heater

Choose your front window

Buy together
Oval Sauna Frodo 500 — 8–10 Person Thermowood Garden Sauna, Three-Room Layout, 4 × 5m
Sauna Accessories Set Black — Bucket, Ladle, Thermometer & Timer

Choose your add-ons

About

The largest depth the oval format has to offer. Frodo 500 extends to a substantial 500cm while keeping the familiar 400cm width and 248cm height, solid Spruce construction holding heat efficiently even with a full group inside. Serious group capacity without losing the recognisable oval silhouette. Built for households who decided the oval format suits them and simply wanted the most of it.

Heat Treated Thermowood

Heat Treated Thermowood

Built for UK Weather

Built for UK Weather

Everything You Need to Install

Everything You Need to Install

Designed for Fast Heat-Up

Designed for Fast Heat-Up

Specification

  • Shape: Oval
  • Accommodates: 8-10 People
  • Footprint: 400 x 500 cm
  • Max Height: 248 cm
  • Wall Thickness: 42 mm
  • Material: Thermowood
  • Main Door: 228 x 189 cm
  • Window 1: 58 x 77 cm
  • Window 2: 38 x 66 cm
  • Weight: TBC kg
  • Package Size: TBC
  • Assembly: Self-assembly
  • Insulated: No
  • Design Note: 3-room layout
  • Power Supply: Single or Three Phase
  • Heater Compatibility: Electric & Wood-Fired

Designed around your ritual

Full Glass Back Window

Full Glass Back Window

Bring the outdoors in. A full glass rear window fills the sauna with natural light and opens up wider scenic views.
Half Moon Back Window

Half Moon Back Window

Privacy meets natural light. A half-moon rear window creates a softer, brighter feel while keeping more enclosed wall space.
Full Glass Front Barrel

Full Glass Front Barrel

Turn every session outward. Full front glazing opens the barrel sauna to natural light and uninterrupted outdoor views.
Full Glass Front Cube

Full Glass Front Cube

Modern design, open views. Full-height front glazing creates a brighter, cleaner space with a sharper architectural finish.
LED Lighting Kits

LED Lighting Kits

Set the perfect mood. Integrated LED lighting creates warmth and atmosphere, transforming the sauna experience day or night
Bluetooth Speakers

Bluetooth Speakers

Soundtrack your downtime. Built-in Bluetooth speakers bring music, podcasts, and guided sessions straight into your sauna.
Quality Accessories

Quality Accessories

Complete the experience properly. Practical finishing touches that improve comfort, convenience, and the overall sauna ritual.
Premium Thermowood

Premium Thermowood

Built to age beautifully. Thermowood offers a richer finish, stronger durability, and better long-term performance.
At this scale, the oval sauna format moves into genuine serious infrastructure territory, supporting large households, regular substantial group gatherings, or commercial hospitality applications wanting a real wellness centrepiece. The core physiological benefits of sauna bathing, improved circulation, reduced muscle tension, a cardiovascular effect comparable to light exercise, remain consistent regardless of scale, but the capacity to genuinely host ten or more people without compromise opens up a different category of regular use altogether.

The three-room layout adds substantial practical value, separating functions across the structure in a way that supports a considered, unhurried ritual even with larger groups regularly using the space. For glamping operators and holiday lets specifically, offering a genuinely spacious oval sauna experience taps into the established social and wellbeing benefits of group bathing, increasingly valued by guests seeking a real wellness amenity rather than a token feature tucked into a corner of the grounds.

For households who've specifically committed to the oval format and simply want its fullest expression, the Frodo 500 represents the format pushed to its most capable scale: maximum room, genuine multi-space layout, and capacity for substantial regular group use across a full UK year. That combination tends to support the kind of consistent, repeated group habit that delivers the most meaningful long-term wellbeing benefits for everyone using the space.
Delivered flat-packed for self-assembly, with free UK mainland delivery on qualifying orders. The larger Cube format requires a little more assembly time than the smaller Icon models, so we recommend allowing a weekend and having a second person to help. A solid, level base and suitable delivery access are required.

For a complete setup, select Professional Installation and choose your preferred date, allowing for the stated production lead time. We’ll then arrange the installation around your requirements, including any additional preparation or works needed to accommodate your sauna where possible.

Electric sauna heaters require a suitable dedicated electrical supply and are not simply plug-and-play. The power requirements depend on the heater's output and the electrical supply available at the property.

Smaller heaters may be suitable for a 230V single-phase supply, while larger or more powerful heaters can require a 400V three-phase supply. Single-phase power uses one electrical phase, whereas three-phase power distributes the load across three phases and is better suited to higher-powered equipment.

The correct supply will depend on the specific heater you choose, so the heater's electrical requirements should always be checked before installation.

Sauna heaters will normally need to be hard-wired into a correctly rated dedicated circuit with the appropriate cable, isolation and electrical protection. They should not be connected using a standard household plug or extension lead.

The final electrical connection should be completed by a suitably qualified electrician in accordance with the heater manufacturer's instructions and applicable electrical regulations. This is important for both safety and reliable operation of the heater.

If you're based in the Leicestershire area, we can arrange the electrical installation of your sauna heater for an additional fee. Please speak to our team if you'd like this included with your sauna.

Wood-fired sauna heaters do not require an electrical supply for heating, but they do require the correct installation of the stove, chimney, flue and surrounding heat protection.

The stove must be positioned according to the manufacturer's required safety distances from timber walls, benches and other combustible materials. Depending on the stove and sauna design, suitable heat shields or other non-combustible protection may also be required.

The floor beneath and immediately around the stove may also require suitable non-combustible protection, particularly where there is a risk of embers or hot material falling from the stove.

A suitable chimney and flue system must be installed to safely carry smoke and combustion gases outside the sauna. Where the flue passes through the roof, the correct insulated chimney components, roof flashing and heat-resistant protection should be used.

Correct ventilation is also important. A wood-fired stove requires an adequate supply of combustion air, while the sauna itself needs sufficient airflow to provide fresh air, circulate heat and allow moisture to escape.

When choosing the position of an outdoor wood-fired sauna, you should also consider where the chimney will discharge in relation to your house, neighbouring properties, windows, boundaries and outdoor seating areas.

Any applicable local requirements should be checked before installation, particularly where chimney positioning, smoke control or other restrictions may apply.

A sauna of this scale, with its three-room layout, rewards a genuinely organised maintenance approach given the considerable surface area across the heat room and additional spaces. After every session, prop the heat room door open for twenty to thirty minutes to let moisture escape fully, the most effective habit for preventing mould and dark staining regardless of structure size. Wipe benches down once cooled, and sand the interior lightly once or twice a year wherever group use creates the most contact wear.

The additional rooms within the three-room layout should be checked separately for general dampness and wear given their different functions and exposure. Windows need only a standard glass cleaner and soft cloth.

Externally, treat the full Spruce exterior on a two to three year cycle, though a structure this size is genuinely worth tackling in sections across a season rather than all at once. Check the full extended base perimeter carefully for debris and standing water, given the considerably larger footprint this deepest variant occupies compared with other Frodo models.
This sauna comes with a 5 year warranty for residential use and 2 years for commercial use, covering structural timber, glazing, and hardware. Valid claims are assessed case by case, and we'll supply replacement parts wherever possible rather than the whole sauna.
Production takes 10-12 weeks, plus 1-2 weeks dispatch time for pallet haulage. This sauna is delivered flat packed unless otherwise stated. Free UK mainland shipping applies to orders over £500 covering up to one double pallet (2.4m x 1.2m x 2.2m) or two single pallets (1.2m x 1.2m x 2.2m). Given this model's size and weight, additional pallet charges may apply and will be quoted separately based on your postcode, and forklift unloading may be required as it exceeds normal tail-lift limits (1000kg). Please have a solid base, clear access, and suitable unloading space ready before delivery, with help on site if needed. Pallet deliveries are kerbside only, and you're responsible for moving goods onto your property.
Health Benefits
Assembly & Installation
Delivered flat-packed for self-assembly, with free UK mainland delivery on qualifying orders. The larger Cube format requires a little more assembly time than the smaller Icon models, so we recommend allowing a weekend and having a second person to help. A solid, level base and suitable delivery access are required.

For a complete setup, select Professional Installation and choose your preferred date, allowing for the stated production lead time. We’ll then arrange the installation around your requirements, including any additional preparation or works needed to accommodate your sauna where possible.
Electric Heater Setup

Electric sauna heaters require a suitable dedicated electrical supply and are not simply plug-and-play. The power requirements depend on the heater's output and the electrical supply available at the property.

Smaller heaters may be suitable for a 230V single-phase supply, while larger or more powerful heaters can require a 400V three-phase supply. Single-phase power uses one electrical phase, whereas three-phase power distributes the load across three phases and is better suited to higher-powered equipment.

The correct supply will depend on the specific heater you choose, so the heater's electrical requirements should always be checked before installation.

Sauna heaters will normally need to be hard-wired into a correctly rated dedicated circuit with the appropriate cable, isolation and electrical protection. They should not be connected using a standard household plug or extension lead.

The final electrical connection should be completed by a suitably qualified electrician in accordance with the heater manufacturer's instructions and applicable electrical regulations. This is important for both safety and reliable operation of the heater.

If you're based in the Leicestershire area, we can arrange the electrical installation of your sauna heater for an additional fee. Please speak to our team if you'd like this included with your sauna.

Wood-Fired Heater Setup

Wood-fired sauna heaters do not require an electrical supply for heating, but they do require the correct installation of the stove, chimney, flue and surrounding heat protection.

The stove must be positioned according to the manufacturer's required safety distances from timber walls, benches and other combustible materials. Depending on the stove and sauna design, suitable heat shields or other non-combustible protection may also be required.

The floor beneath and immediately around the stove may also require suitable non-combustible protection, particularly where there is a risk of embers or hot material falling from the stove.

A suitable chimney and flue system must be installed to safely carry smoke and combustion gases outside the sauna. Where the flue passes through the roof, the correct insulated chimney components, roof flashing and heat-resistant protection should be used.

Correct ventilation is also important. A wood-fired stove requires an adequate supply of combustion air, while the sauna itself needs sufficient airflow to provide fresh air, circulate heat and allow moisture to escape.

When choosing the position of an outdoor wood-fired sauna, you should also consider where the chimney will discharge in relation to your house, neighbouring properties, windows, boundaries and outdoor seating areas.

Any applicable local requirements should be checked before installation, particularly where chimney positioning, smoke control or other restrictions may apply.

Cleaning & Care
A sauna of this scale, with its three-room layout, rewards a genuinely organised maintenance approach given the considerable surface area across the heat room and additional spaces. After every session, prop the heat room door open for twenty to thirty minutes to let moisture escape fully, the most effective habit for preventing mould and dark staining regardless of structure size. Wipe benches down once cooled, and sand the interior lightly once or twice a year wherever group use creates the most contact wear.

The additional rooms within the three-room layout should be checked separately for general dampness and wear given their different functions and exposure. Windows need only a standard glass cleaner and soft cloth.

Externally, treat the full Spruce exterior on a two to three year cycle, though a structure this size is genuinely worth tackling in sections across a season rather than all at once. Check the full extended base perimeter carefully for debris and standing water, given the considerably larger footprint this deepest variant occupies compared with other Frodo models.
Warranty
This sauna comes with a 5 year warranty for residential use and 2 years for commercial use, covering structural timber, glazing, and hardware. Valid claims are assessed case by case, and we'll supply replacement parts wherever possible rather than the whole sauna.
Delivery
Production takes 10-12 weeks, plus 1-2 weeks dispatch time for pallet haulage. This sauna is delivered flat packed unless otherwise stated. Free UK mainland shipping applies to orders over £500 covering up to one double pallet (2.4m x 1.2m x 2.2m) or two single pallets (1.2m x 1.2m x 2.2m). Given this model's size and weight, additional pallet charges may apply and will be quoted separately based on your postcode, and forklift unloading may be required as it exceeds normal tail-lift limits (1000kg). Please have a solid base, clear access, and suitable unloading space ready before delivery, with help on site if needed. Pallet deliveries are kerbside only, and you're responsible for moving goods onto your property.
Oval Sauna Frodo 500 — 3 Room Thermowood Sauna, Deepest Frodo 4x5m — thermowood — angle view 1

The most spacious oval sauna available

Oval Sauna Frodo 500 represents the deepest available option within the Frodo series, extending to a substantial 500 centimetres while keeping the consistent 400 centimetre width and 248 centimetre height found throughout the range. Solid spruce construction provides the thermal mass needed to perform reliably at this considerably larger scale, holding heat efficiently even with a full group inside and the additional heat loss that comes with more frequent use.

At this depth, Frodo 500 suits households who want the maximum interior space the oval format can offer, comfortably accommodating a proper group session without needing to compromise on the recognisable oval silhouette that distinguishes this format from the standard barrel and cube ranges elsewhere in the catalogue. The consistent width and height keep the proportions feeling balanced despite the considerable increase in depth compared with the standard model.

Oval Sauna Frodo 500 suits anyone who has decided that the oval format suits their household perfectly and simply wants the largest available version, delivering serious group capacity while keeping every characteristic that made the smaller Frodo variants appealing in the first place. It represents the natural endpoint for anyone who started smaller and steadily found themselves wanting more room with each passing season.
Oval Sauna Frodo 500 — 3 Room Thermowood Sauna, Deepest Frodo 4x5m — lifestyle photo 5
Oval Sauna Frodo 500 — 3 Room Thermowood Sauna, Deepest Frodo 4x5m — lifestyle photo 2
Oval Sauna Frodo 500 — 3 Room Thermowood Sauna, Deepest Frodo 4x5m — lifestyle photo 3
Oval Sauna Frodo 500 — 3 Room Thermowood Sauna, Deepest Frodo 4x5m — lifestyle photo 4
Oval Sauna Frodo 500 — 3 Room Thermowood Sauna, Deepest Frodo 4x5m — lifestyle photo 1
Oval Sauna Frodo 500 — 3 Room Thermowood Sauna, Deepest Frodo 4x5m — real life photo 1
Oval Sauna Frodo 500 — 3 Room Thermowood Sauna, Deepest Frodo 4x5m — real life photo 2
Oval Sauna Frodo 500 — 3 Room Thermowood Sauna, Deepest Frodo 4x5m — real life photo 3

From Your Sketch
To Reality ✏️

A sauna built entirely around your space, your ideas and how you want it to feel.

Send us your hand-drawn sketches, and we’ll turn them into detailed CAD designs ready to bring your vision to life.

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Bespoke wood-fired sauna and wellness space
Free Mainland UK Delivery Weather Resistant Thermowood Consistent Warmth Year Warranty Year-Round Use Heats Up Fast
Free Mainland UK Delivery Weather Resistant Thermowood Consistent Warmth Year Warranty Year-Round Use Heats Up Fast
Free Mainland UK Delivery Weather Resistant Thermowood Consistent Warmth Year Warranty Year-Round Use Heats Up Fast
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Built on Tradition. Perfected for Today.

Classic Scandinavian design, refined with premium materials, precise craftsmanship and enduring performance.

Designed to Heat Efficiently

Every curve has a purpose, helping your sauna reach temperature faster while delivering an even, enveloping warmth.

Crafted from Exceptional Thermowood

Heat-treated for durability and stability, our premium timber is chosen for its natural beauty and long-lasting performance.

Premium Tempered Safety Glass

Our premium tempered glazing delivers a refined finish, excellent durability and complete confidence in every sauna.

Frequently Asked Questions

5-Year Guarantee

5-Year Guarantee

Built for years of wellness and relaxation

Free UK Mainland Delivery

Free UK Mainland Delivery

Free delivery throughout England, Wales, and Scotland.

Expert Help, When You Need It

Expert Help, When You Need It

Friendly specialist support before and after your purchase.

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