Oval Sauna Frodo 300 Thermo

More room, same familiar oval proportions

Price

£9,595 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 300 — 6–7 Person Thermowood Garden Sauna, Round Window & Firewood Storage, 4 × 3m
Sauna Accessories Set Black — Bucket, Ladle, Thermometer & Timer

Choose your add-ons

About

More room within the same familiar oval shape. Frodo 300 extends depth to 300cm while keeping the standard 400cm width and 248cm height, solid Spruce construction delivering the same reliable thermal performance. Suits households wanting more interior space without changing the fundamental oval proportions. A sensible middle ground before the largest 500cm variant.

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: 6-7 People
  • Footprint: 400 x 300 cm
  • Max Height: 248 cm
  • Wall Thickness: 42 mm
  • Material: Thermowood
  • Main Door: 70 x 180 cm
  • Round Window: Ø90 cm
  • Weight: 1800 kg
  • Package Size: 500 x 120 x 120 cm
  • Assembly: Self-assembly
  • Insulated: No
  • Design Note: Round window; 3-porthole door; integrated firewood storage
  • 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.
Genuine extra room for group sessions, without abandoning the distinctive oval proportions that drew households to this format in the first place, suits anyone who's specifically committed to the Frodo series' particular character but needs more capacity than the standard depth provides. The core physiological benefits of sauna bathing, improved circulation, reduced muscle tension, a cardiovascular effect comparable to light exercise, apply consistently regardless of which depth variant within the range is chosen.

The integrated firewood storage adds genuine practical value for households planning to use a wood burning stove regularly with a sauna of this size, keeping fuel dry, accessible, and well organised as part of the considered overall design rather than requiring separate storage solutions elsewhere in the garden. This kind of practical detail tends to matter more than people initially expect for sustained, regular use over a full heating season.

Group sauna sessions for six or seven people bring genuine social and mood benefits beyond the physical effects of heat alone, and a sauna with proper room to accommodate that size group comfortably, while retaining the established oval character, supports a more relaxed, enjoyable shared experience. For households whose typical group size has grown beyond what the standard depth comfortably handles, this variant offers a considered next step rather than an entirely different format.
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.

The Frodo 300 needs standard oval sauna care, with the integrated firewood storage area needing some additional attention given its specific function. After every session, leave the door open for twenty to thirty minutes to let the heat room dry out fully, preventing mould and dark staining on timber surfaces. Wipe benches down once cooled, and sand the interior lightly once or twice a year wherever group use creates the most contact wear.

The firewood storage area should be kept dry and well ventilated to keep stored wood in good burning condition; check periodically that water isn't penetrating the storage space, particularly after heavy rain. The round window and glass door need regular cleaning with a standard glass cleaner and soft cloth.

Externally, treat the curved Spruce exterior with a wood treatment every two to three years, budgeting more time for this larger structure than smaller Frodo variants. Keep the base clear of debris and standing water along the full extended footprint, checking the firewood storage area's drainage particularly carefully given its specific function.
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
The Frodo 300 needs standard oval sauna care, with the integrated firewood storage area needing some additional attention given its specific function. After every session, leave the door open for twenty to thirty minutes to let the heat room dry out fully, preventing mould and dark staining on timber surfaces. Wipe benches down once cooled, and sand the interior lightly once or twice a year wherever group use creates the most contact wear.

The firewood storage area should be kept dry and well ventilated to keep stored wood in good burning condition; check periodically that water isn't penetrating the storage space, particularly after heavy rain. The round window and glass door need regular cleaning with a standard glass cleaner and soft cloth.

Externally, treat the curved Spruce exterior with a wood treatment every two to three years, budgeting more time for this larger structure than smaller Frodo variants. Keep the base clear of debris and standing water along the full extended footprint, checking the firewood storage area's drainage particularly carefully given its specific function.
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 300 — Deeper Thermowood Sauna for Group Sessions — thermowood — angle view 1

More room, same familiar oval character

Oval Sauna Frodo 300 extends the standard Frodo depth to 300 centimetres, keeping the same 400 centimetre width and 248 centimetre height found throughout the series while giving genuinely more interior room than the standard 240 centimetre version. Solid spruce construction throughout provides the same thermal performance expected across the wider oval range, simply adjusted to accommodate the deeper footprint.

This deeper variant suits households who want more interior space for a small group session without changing the fundamental width and height proportions that define the oval format, useful for anyone who has decided their garden can comfortably accommodate a slightly larger footprint than the standard depth requires. The consistent width and height across all Frodo depth variants means the overall character of the sauna stays familiar regardless of which specific depth a buyer chooses.

Oval Sauna Frodo 300 suits anyone wanting genuinely more room within the oval format without moving to an entirely different sauna shape, delivering a sensible middle ground between the standard depth and the largest 500 centimetre version further along the range. It often suits households who know they want more than standard but are not yet ready to commit to the very largest option available.
Oval Sauna Frodo 300 — 6–7 Person Thermowood Garden Sauna, Round Window & Firewood Storage, 4 × 3m
Oval Sauna Frodo 300 — Deeper Thermowood Sauna for Group Sessions — thermowood — side view 1
Oval Sauna Frodo 300 — Deeper Thermowood Sauna for Group Sessions — lifestyle photo 3
Oval Sauna Frodo 300 — Deeper Thermowood Sauna for Group Sessions — painted finish option — angle view 1
Oval Sauna Frodo 300 — Deeper Thermowood Sauna for Group Sessions — painted finish option — front view 1
Oval Sauna Frodo 300 — 6–7 Person Thermowood Garden Sauna, Round Window & Firewood Storage, 4 × 3m
Oval Sauna Frodo 300 — Deeper Thermowood Sauna for Group Sessions — real life photo 3
Oval Sauna Frodo 300 — 6–7 Person Thermowood Garden Sauna, Round Window & Firewood Storage, 4 × 3m
Oval Sauna Frodo 300 — Deeper Thermowood Sauna for Group Sessions — lifestyle photo 1
Oval Sauna Frodo 300 — Deeper Thermowood Sauna for Group Sessions — lifestyle photo 2
Oval Sauna Frodo 300 — Deeper Thermowood Sauna for Group Sessions — real life photo 4
Oval Sauna Frodo 300 — Deeper Thermowood Sauna for Group Sessions — real life photo 5
Oval Sauna Frodo 300 — Deeper Thermowood Sauna for Group Sessions — real life photo 6
Oval Sauna Frodo 300 — Deeper Thermowood Sauna for Group Sessions — real life photo 7
Oval Sauna Frodo 300 — Deeper Thermowood Sauna for Group Sessions — real life photo 8
Oval Sauna Frodo 300 — Deeper Thermowood Sauna for Group Sessions — real life photo 9

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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