Mattias Log Sauna

Screened privacy with a bright interior

Price

£7,095 inc VAT & Delivery Included

Free UK Mainland Delivery

Every Order Plants 5 Trees

Flat‑Pack or Installation

Handcrafted in Estonia

Choose from Clear, Bronze or Mirror Glass

Comprehensive Warranty

Electric or Wood Fired Heating Options

Call 03330 907890 for expert advice from our team

Choose your installation

Choose your timber colour

Natural Spruce

Choose your roof shingles

Terracotta

Umber

Forest

Graphite

Onyx

Choose your sauna heater

Choose your roof insulation

Buy together
Log Sauna Mattias — 2–3 Person 70mm Spruce Garden Sauna, Front Room & Privacy Screen, 4m²
Modular Sauna LED Light Strips — Bench Lighting Kit, 1 Room

Choose your add-ons

About

Four square metres, built square, built to last. Mattias pairs a tempered glass front with solid Spruce log walls in a terrace styled layout designed for relaxed seating rather than a purely functional sweat room. Room enough for two or three without crowding. Self assembly follows the same clear, numbered panel system used across the range, manageable over a weekend or two.

Natural Nordic Spruce

Natural Nordic Spruce

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: Square
  • Accommodates: 2-3 People
  • Footprint: 314 x 334 cm
  • Max Height: 247 cm
  • Floor Area: 4 m²
  • Wall Thickness: 70 mm
  • Material: Spruce
  • Main Door: 80 x 190 mm
  • Window: 129 x 177 mm
  • Glazing: Tempered Glass
  • Assembly: Self-assembly
  • Insulated: No
  • Design Note: Privacy slat screening; front room included
  • 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.

Frequently Asked Questions

2-Year Guarantee

2-Year Guarantee

Built for years of wellness and relaxation

Free UK Mainland Delivery

Free UK Mainland Delivery

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. Book a free consultation.

Delivered flat-packed for self-assembly, with free UK mainland delivery on qualifying orders. Allow a full weekend for assembly and have at least one other capable adult available to help. Larger, heavier and multiroom models may require additional time and lifting assistance. 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. Worth running our sauna build checker before delivery day, and our heater size calculator to confirm the heater this one needs.

Inside, this sauna holds about 6.6 m³ of air, about the size of a small box room. To get that properly hot you want roughly 6kW of heat, and the HUUM DROP 6kW with Wi-Fi is the one we'd point you at. Anything between 6kW and 8kW will do the job, so it comes down to how it looks, how you control it and what you want to spend. Our heater size calculator shows how we got to that and lists every heater that fits this model.

A heater this size runs off a normal household supply, but it can't go in a plug socket. It needs its own dedicated circuit, much like an electric shower or oven. Whichever heater you pick, check what it needs before you buy.

The heater gets wired straight into your electrics by a qualified electrician. Never a plug, never an extension lead. If you're near us in Leicestershire we can arrange the electrician for you for a fee, so it's all done in one go. There's more detail in our full guide to electric heater setup.

Two things worth doing before you buy: our running cost calculator tells you what a session will cost to heat, and our solar calculator works out the panels and battery you'd need if you'd rather run it from the sun.

Inside, this sauna holds about 6.6 m³ of air, about the size of a small box room. The Cozy 12 OG Wood Burning Heater is the stove we'd suggest for it, and anything from the 12kW to the 16kW will work. Our heater size calculator shows how we worked that out and what else fits.

A wood stove needs no electrics at all, but it does get extremely hot. It has to sit a set distance from the timber walls and benches, usually with a heat shield behind it, and something fireproof underneath in case an ember drops out. The stove instructions give you the exact distances. The walls are 70mm solid timber with no insulation layer, so it takes a bit longer to warm up and uses a bit more wood than an insulated one.

The chimney runs up and out through the roof. The chimney goes up through the roof panel, so that hole needs cutting and sealing properly. The fire also needs air to burn, and the room needs a vent low down and another high up so fresh air comes in and damp gets out. Have a think about where the smoke will blow, in relation to your house, your neighbours and where you sit outside.

Before you build, run our sauna build checker. It checks your vents, bench heights, clearances and drainage in a couple of minutes and flags anything that'll cause you grief later. Our full guide to wood-fired heater setup covers the rest. It's also worth a quick check with your council, as some areas have rules about chimneys and smoke.

Keeping a terrace-style log sauna in good condition is largely the same routine as any spruce cabin, with a little extra attention to the privacy screening. After each session, leave the heat room door open for twenty to thirty minutes so moisture can escape fully, which prevents mould and dark staining from building up over time. Wipe the benches down once cooled and give the interior a light sand once or twice a year wherever hands and skin make the most contact.

The tempered glass front just needs a standard glass cleaner and a soft cloth; avoid anything abrasive that could dull the surface. The privacy slat screening in the front room should be checked periodically for loose slats or fixings, particularly after stormy weather, since it's more exposed to wind loading than the solid log walls behind it.

Externally, the spruce log exterior needs a wood treatment reapplied every two to three years, with timing depending on sun and rain exposure; south or west facing sides typically need attention sooner. Treat the screening slats on the same schedule as the rest of the exterior, since they're made from the same timber and will weather at a similar rate. Keep the base of the structure clear of leaves and standing water, and check that water draining off the roof isn't pooling anywhere it could affect the lowest log courses over time.

Production takes 6-8 weeks, plus 1-2 weeks dispatch time for haulage. Due to its size and weight, this sauna ships on an oversized pallet (typically around a tonne or more) and arrives kerbside on a flatbed truck. Free UK mainland shipping applies, but additional charges may apply by postcode for length, weight, or restricted access, quoted separately.

Because of its size and weight, this item cannot be unloaded by tail lift and unloading is not included in the price — it needs arranging in advance. Depending on your access, you have three options:

  • Forklift – if there's space to move the pallet from the truck to its final position, this is the most cost-effective choice.
  • HIAB – for lifting over a fence or wall near the road, a HIAB (truck-mounted crane) is a practical and affordable option.
  • Crane – if the final position is far from the road and forklift access isn't possible, a crane will be needed.

Handballing is possible but requires a full team of able helpers and suitable lifting equipment at every stage, and is done at your own risk. We can help source a forklift, HIAB, or crane in your area for an additional fee — if you're unsure which suits your site, contact us before ordering and we'll advise. Please have a solid, level base and clear access ready before delivery. Final positioning is not included unless you use our installation team; once unloaded, moving and positioning the goods is your responsibility.

Assembly & Installation

Delivered flat-packed for self-assembly, with free UK mainland delivery on qualifying orders. Allow a full weekend for assembly and have at least one other capable adult available to help. Larger, heavier and multiroom models may require additional time and lifting assistance. 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. Worth running our sauna build checker before delivery day, and our heater size calculator to confirm the heater this one needs.

Electric Heater Setup

Inside, this sauna holds about 6.6 m³ of air, about the size of a small box room. To get that properly hot you want roughly 6kW of heat, and the HUUM DROP 6kW with Wi-Fi is the one we'd point you at. Anything between 6kW and 8kW will do the job, so it comes down to how it looks, how you control it and what you want to spend. Our heater size calculator shows how we got to that and lists every heater that fits this model.

A heater this size runs off a normal household supply, but it can't go in a plug socket. It needs its own dedicated circuit, much like an electric shower or oven. Whichever heater you pick, check what it needs before you buy.

The heater gets wired straight into your electrics by a qualified electrician. Never a plug, never an extension lead. If you're near us in Leicestershire we can arrange the electrician for you for a fee, so it's all done in one go. There's more detail in our full guide to electric heater setup.

Two things worth doing before you buy: our running cost calculator tells you what a session will cost to heat, and our solar calculator works out the panels and battery you'd need if you'd rather run it from the sun.

Wood-Fired Heater Setup

Inside, this sauna holds about 6.6 m³ of air, about the size of a small box room. The Cozy 12 OG Wood Burning Heater is the stove we'd suggest for it, and anything from the 12kW to the 16kW will work. Our heater size calculator shows how we worked that out and what else fits.

A wood stove needs no electrics at all, but it does get extremely hot. It has to sit a set distance from the timber walls and benches, usually with a heat shield behind it, and something fireproof underneath in case an ember drops out. The stove instructions give you the exact distances. The walls are 70mm solid timber with no insulation layer, so it takes a bit longer to warm up and uses a bit more wood than an insulated one.

The chimney runs up and out through the roof. The chimney goes up through the roof panel, so that hole needs cutting and sealing properly. The fire also needs air to burn, and the room needs a vent low down and another high up so fresh air comes in and damp gets out. Have a think about where the smoke will blow, in relation to your house, your neighbours and where you sit outside.

Before you build, run our sauna build checker. It checks your vents, bench heights, clearances and drainage in a couple of minutes and flags anything that'll cause you grief later. Our full guide to wood-fired heater setup covers the rest. It's also worth a quick check with your council, as some areas have rules about chimneys and smoke.

Cleaning & Care

Keeping a terrace-style log sauna in good condition is largely the same routine as any spruce cabin, with a little extra attention to the privacy screening. After each session, leave the heat room door open for twenty to thirty minutes so moisture can escape fully, which prevents mould and dark staining from building up over time. Wipe the benches down once cooled and give the interior a light sand once or twice a year wherever hands and skin make the most contact.

The tempered glass front just needs a standard glass cleaner and a soft cloth; avoid anything abrasive that could dull the surface. The privacy slat screening in the front room should be checked periodically for loose slats or fixings, particularly after stormy weather, since it's more exposed to wind loading than the solid log walls behind it.

Externally, the spruce log exterior needs a wood treatment reapplied every two to three years, with timing depending on sun and rain exposure; south or west facing sides typically need attention sooner. Treat the screening slats on the same schedule as the rest of the exterior, since they're made from the same timber and will weather at a similar rate. Keep the base of the structure clear of leaves and standing water, and check that water draining off the roof isn't pooling anywhere it could affect the lowest log courses over time.

Delivery

Production takes 6-8 weeks, plus 1-2 weeks dispatch time for haulage. Due to its size and weight, this sauna ships on an oversized pallet (typically around a tonne or more) and arrives kerbside on a flatbed truck. Free UK mainland shipping applies, but additional charges may apply by postcode for length, weight, or restricted access, quoted separately.

Because of its size and weight, this item cannot be unloaded by tail lift and unloading is not included in the price — it needs arranging in advance. Depending on your access, you have three options:

  • Forklift – if there's space to move the pallet from the truck to its final position, this is the most cost-effective choice.
  • HIAB – for lifting over a fence or wall near the road, a HIAB (truck-mounted crane) is a practical and affordable option.
  • Crane – if the final position is far from the road and forklift access isn't possible, a crane will be needed.

Handballing is possible but requires a full team of able helpers and suitable lifting equipment at every stage, and is done at your own risk. We can help source a forklift, HIAB, or crane in your area for an additional fee — if you're unsure which suits your site, contact us before ordering and we'll advise. Please have a solid, level base and clear access ready before delivery. Final positioning is not included unless you use our installation team; once unloaded, moving and positioning the goods is your responsibility.

Log Sauna Mattias — 70mm Spruce Sauna with Terrace Interior, 2-3 Person — lifestyle photo 1

A considered sauna built for lingering

Mattias is a square format log sauna with a terrace styled layout, built at 4 square metres with a 314 by 334 centimetre footprint that gives it a slightly more generous depth than width. The tempered glass front brings natural light into the cabin while solid spruce log walls handle the insulation and structural work everywhere else, the same combination used across the better specified models in the wider Inmedias Res range that this sauna belongs to.

The terrace styling shapes how the interior feels rather than adding a separate outdoor terrace structure, with a layout designed around relaxed seating rather than a purely functional sweat room built only to hit temperature and little else. This makes Mattias a good fit for anyone who wants their sauna sessions to feel considered rather than purely practical, sized for two or three people without crowding even when everyone wants to stretch out a little.

As a standalone log sauna, Mattias works well positioned as a feature in its own right, whether against a garden boundary or as part of a wider outdoor seating area where it can anchor the rest of the layout. Self assembly follows the same numbered panel system as the rest of the range, manageable for anyone with basic DIY experience and a free weekend or two, with clear instructions that make the process considerably less daunting than it might first appear.

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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Privacy Without Losing the Light

A front room and screening give total seclusion, while glazing keeps the interior bright, suiting couples who value calm and discretion.

Designed to Heat Efficiently

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

Crafted from Exceptional Spruce

Natural spruce or heat-treated for durability and stability, our premium timber is chosen for its natural beauty and long-lasting performance.

Premium Tempered Glass

Our premium bronzed 8mm thick tempered glazing delivers a refined finish, excellent durability and complete confidence in every sauna.

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