Kalle Painted Black

Quick-build sauna with black exterior

Prices from

£15,195 inc VAT
STEP 1 OF 1

Choose your sauna timber

Choose your timber colour

Natural

Walnut

Crimson

Obsidian

Mahogany

Arctic

Silver

Larch

Golden

Midnight

Olive

Cedar

Choose your roof shingles

Terracotta

Umber

Forest

Graphite

Onyx

Choose your sauna heater

Choose your add-ons

Product information

All the heat retention, none of the long build. Modular Sauna Kalle uses pre assembled Spruce wall sections rather than panel by panel construction, fitting together quickly once it reaches the garden. 4.9m² of solid timber gives two or three people proper room without compromising on thermal performance. Built for anyone who wants a real outdoor sauna without committing several weekends to get there. The Spruce structure is supplied with its exterior factory-finished in painted black.

Heat Treated Thermowood

Heat Treated Thermowood

Built for Every Season

Built for Every Season

Everything You Need to Install

Everything You Need to Install

Designed for Fast Heat-Up

Designed for Fast Heat-Up

Specifications

  • Shape: Rectangular
  • Accommodates: 4-5 People
  • Footprint: 320 x 240 cm
  • Max Height: 250 cm
  • Floor Area: 4.9 m²
  • Wall Thickness: 180 mm
  • Material: Spruce
  • Main Door: 90 x 190 cm
  • Window: 230 x 148 cm
  • Glazing: Tempered Glass
  • Assembly: Factory assembled
  • Insulated: Yes
  • Design Note: Only factory assembled and insulated

Designed around your ritual

Full Moon Back Window

Full Moon Back Window

Bring the outdoors in. A full circular 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.
Modular construction doesn't change the physiological benefits of sauna bathing itself, but the insulated wall sections do typically mean faster warm-up times and more consistent heat retention than uninsulated log construction, which can make a real practical difference to how often a sauna actually gets used. A sauna that heats up quickly and holds its temperature reliably removes one more barrier to regular use, and consistency is what drives most of the long-term wellbeing benefits associated with sauna bathing.

The core benefits remain well established regardless of construction method: heat exposure raises heart rate and improves circulation in a way that resembles light cardiovascular exercise, and regular sauna bathers show improved long-term cardiovascular markers in studies of habitual users across Finland and similar sauna cultures. Sweating during a session also supports skin health by clearing pores and improving blood flow to the skin's surface.

For households new to sauna ownership specifically, a faster, more predictable build process can mean less delay between deciding to invest in a sauna and actually being able to use it regularly. Given that habit formation around wellness practices tends to benefit from early, consistent use, getting a sauna installed and operational quickly, rather than facing weeks of self-assembly, can genuinely support building a lasting routine rather than losing momentum during a long build process.
Delivered as pre-assembled wall sections rather than individual panels, with free UK mainland delivery on qualifying orders. Installation is largely a case of fitting sections together rather than a full self-build, manageable in a single day for most people. Needs a solid, level base and clear access. Professional installation available as an upgrade; see our Self Assembly Guide.
Modular saunas need broadly the same care as traditional log construction, with the added benefit of factory insulation reducing some of the moisture-related risks that uninsulated cabins face. After every session, leave the door open for twenty to thirty minutes to let the heat room dry out fully, which remains the most effective way to prevent mould or staining regardless of construction method. Wipe benches down once cooled, and give the interior a light sand once or twice a year wherever hands and bare skin make the most contact.

The tempered glass window just needs a standard glass cleaner and soft cloth. Because the wall sections are factory-built and insulated, there's less need to worry about gaps or settling at the joints compared with a self-assembled log structure, though it's still worth checking seals around the door and window each season.

Externally, treat the spruce exterior with a wood treatment every two to three years depending on weather exposure, following the same principles as any outdoor timber building. Keep the base of the structure clear of leaves and standing water, and check that any ground preparation done at installation is still draining properly, since this affects insulated modular construction the same way it affects traditional log saunas.
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 as pre-assembled wall sections rather than fully flat packed. 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). If your order exceeds this due to length, weight, or quantity, additional pallet charges may apply and are quoted separately based on postcode. 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 as pre-assembled wall sections rather than individual panels, with free UK mainland delivery on qualifying orders. Installation is largely a case of fitting sections together rather than a full self-build, manageable in a single day for most people. Needs a solid, level base and clear access. Professional installation available as an upgrade; see our Self Assembly Guide.
Cleaning & Care
Modular saunas need broadly the same care as traditional log construction, with the added benefit of factory insulation reducing some of the moisture-related risks that uninsulated cabins face. After every session, leave the door open for twenty to thirty minutes to let the heat room dry out fully, which remains the most effective way to prevent mould or staining regardless of construction method. Wipe benches down once cooled, and give the interior a light sand once or twice a year wherever hands and bare skin make the most contact.

The tempered glass window just needs a standard glass cleaner and soft cloth. Because the wall sections are factory-built and insulated, there's less need to worry about gaps or settling at the joints compared with a self-assembled log structure, though it's still worth checking seals around the door and window each season.

Externally, treat the spruce exterior with a wood treatment every two to three years depending on weather exposure, following the same principles as any outdoor timber building. Keep the base of the structure clear of leaves and standing water, and check that any ground preparation done at installation is still draining properly, since this affects insulated modular construction the same way it affects traditional log saunas.
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 as pre-assembled wall sections rather than fully flat packed. 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). If your order exceeds this due to length, weight, or quantity, additional pallet charges may apply and are quoted separately based on postcode. 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.

A faster build without the compromise

Modular Sauna Kalle is built using pre assembled wall sections rather than the panel by panel log construction used elsewhere in the range, which means a faster, more predictable installation process once it arrives in the garden. At 4.9 square metres, it gives two or three people proper room to sit, with solid spruce construction throughout so the modular approach does not come at the cost of thermal performance, holding heat just as effectively as a traditionally built equivalent of the same size.

Each modular section is built and finished before it reaches site, so assembly is largely a case of fitting the sections together rather than building the structure piece by piece from individual logs. This makes Kalle a sensible choice for anyone who wants the benefits of a quality outdoor sauna without an extended self build project, while still getting solid timber walls rather than a thinner panel system that would compromise heat retention and long term durability against UK weather.

Kalle suits gardens where a straightforward installation matters as much as the finished sauna itself, whether that is due to time, the practicalities of access, or simply a preference for getting up and running with minimal fuss rather than committing several weekends to a build. It remains a genuine outdoor sauna in every respect that matters, with real thermal mass and proper construction, just with an easier and more predictable path to first use than the log built alternatives. The Spruce structure is supplied with its exterior factory-finished in painted black.
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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A faster build than log construction

Factory-assembled wall sections mean a faster, more predictable build than traditional log construction. Insulated throughout for genuine heat retention, sized for four to five people without an extended self-build project.

Modular reliability over DIY assembly

A modular sauna built for reliability over DIY. Pre-assembled, insulated sections go together quickly, giving households a proper outdoor sauna experience without the weekend-long construction project a log cabin demands.

Consistent thermal performance, factory built

Insulated factory sections deliver consistent thermal performance with a far quicker installation than panel-by-panel log building. Sized for small households or regular small group use, built for straightforward ownership.

The sauna without the long project

For anyone wanting the sauna without the project, Modular Sauna Kalle delivers. Factory-built, fully insulated wall sections, tempered glass window, and a footprint suited to four or five people in regular use.

What our customers say

Don't just take our word for it

"The Cascina feels solid and well made. The aluminium frame has a clean finish, the roof panels sit neatly, and the whole structure gives the garden a much more complete look."

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Olivia

The Cascina

"The Nobile has a really premium feel. The frame colour looks sharp, the materials feel durable, and the finished veranda has a clean modern appearance."

Aluminium Veranda | The Nobile | Wide Span Up To 7m | Extra-Large Gutter | Polycarbonate or Glass Roof

James

Nobile

"The Cascina suits the house perfectly. What stood out most was the sturdy frame, neat roof finish and how well the design works with the garden."

Aluminium Veranda | The Cascina | Modular Interlinkable | Multiple Roof & Post Styles

Charlotte

The Cascina

"The Fiano Glass Doors feel smooth, sturdy and well finished. They keep the space bright and open while adding extra comfort when the weather turns cooler."

Frameless Glass Sliding Doors | Fiano Glass Sliding Doors | 10mm Glass | Up To 7 Tracks | Veranda Garden Room Conversion

Henry

Fiano Glass Doors

Build your modular sauna

1

Choose the sauna size, layout and feel that suits your garden and routine.

2

Place your order and we confirm the key details before preparing your sauna.

3

Get ready for delivery, installation and proper heat sessions at home.

BUILD MY WELLNESS SPACE

Frequently Asked Questions

Modular saunas arrive as pre-assembled wall sections built and insulated at the factory, while traditional log saunas are built panel by panel on site, making modular construction considerably faster to install.

Yes, factory insulation in the wall sections means modular saunas typically retain heat at least as well as traditional log construction, often better given the controlled manufacturing process.

Installation is significantly faster than a self-build log sauna since the wall sections arrive pre-assembled; exact timing depends on site preparation and access, but the structure itself goes together quickly.

Insulated sections are specifically engineered to retain heat efficiently, which can mean lower running costs and faster warm-up times compared with solid, uninsulated log construction of a similar thickness.

This model comfortably seats four to five people, suiting small households or regular small group use.

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. Schedule a virtual appointment.

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