Kalle L Painted Black

Small-group sauna with black exterior

Prices from

£20,795 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

More room, same straightforward build. Kalle L scales the modular format up to 7.6m², giving a small group genuine space without the longer installation a log built cabin of similar size would demand. Solid Spruce sections arrive pre assembled and fit together quickly on site. Heat retention stays strong despite the larger footprint. A practical route to proper group sauna use. 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: 6-7 People
  • Footprint: 440 x 225 cm
  • Max Height: 250 cm
  • Floor Area: 7.6 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.
A larger sauna built for small group use brings the same core physiological benefits as any other size, heat exposure raising heart rate and improving circulation in a way that mirrors light cardiovascular exercise, but the social dimension becomes more relevant at this scale. Shared sauna use with friends or family is associated with genuine social and mood benefits beyond the physical effects of heat alone, since the relaxed, screen-free environment of a sauna session naturally encourages conversation in a way that's harder to replicate in everyday settings.

The insulated modular construction means this size sauna heats reliably and holds its temperature consistently, which matters more as group size increases since more bodies entering and leaving the heat room can otherwise affect temperature stability in an uninsulated structure. Consistent, predictable heat removes a practical friction point that might otherwise discourage regular group sessions.

For households or small groups of friends building a regular sauna habit together, frequency remains the key driver of long-term benefit. Research on habitual sauna bathers consistently shows that more frequent use correlates with stronger improvements in cardiovascular markers over time, and a sauna sized comfortably for the group that actually wants to use it together, rather than one that feels cramped with more than two or three people, makes that consistent group habit considerably easier to maintain.
Delivered as pre-assembled wall sections rather than individual panels, with free UK mainland delivery on qualifying orders. The larger 7.6m² size doesn't make installation proportionally longer, since the sections still arrive ready to fit together. Needs a solid, level base and clear access. Professional installation available as an upgrade; see our Self Assembly Guide.
Caring for this larger modular sauna follows the same principles as the standard Kalle, simply across more surface area. After every session, prop the door open for twenty to thirty minutes to let the heat room dry out fully, the single most effective habit for preventing mould and timber staining. Wipe benches down once cooled, and sand the interior lightly once or twice a year wherever contact is heaviest, typically bench seating given the larger group sizes this model is built to handle.

The tempered glass window needs only a standard glass cleaner and soft cloth. Check door and window seals each season; factory-built insulated sections generally hold their fit better over time than self-assembled log joints, but it's still worth a periodic check, particularly after the sauna's first full year as everything settles in.

Externally, treat the spruce exterior with a wood treatment every two to three years, adjusting for how exposed the structure is to sun and rain. Given the larger footprint, budget slightly more time for this than the standard Kalle would need. Keep the base clear of debris and standing water across the full perimeter, and confirm ground preparation is still draining properly, particularly important for a larger, heavier structure than the standard size.
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. The larger 7.6m² size doesn't make installation proportionally longer, since the sections still arrive ready to fit together. Needs a solid, level base and clear access. Professional installation available as an upgrade; see our Self Assembly Guide.
Cleaning & Care
Caring for this larger modular sauna follows the same principles as the standard Kalle, simply across more surface area. After every session, prop the door open for twenty to thirty minutes to let the heat room dry out fully, the single most effective habit for preventing mould and timber staining. Wipe benches down once cooled, and sand the interior lightly once or twice a year wherever contact is heaviest, typically bench seating given the larger group sizes this model is built to handle.

The tempered glass window needs only a standard glass cleaner and soft cloth. Check door and window seals each season; factory-built insulated sections generally hold their fit better over time than self-assembled log joints, but it's still worth a periodic check, particularly after the sauna's first full year as everything settles in.

Externally, treat the spruce exterior with a wood treatment every two to three years, adjusting for how exposed the structure is to sun and rain. Given the larger footprint, budget slightly more time for this than the standard Kalle would need. Keep the base clear of debris and standing water across the full perimeter, and confirm ground preparation is still draining properly, particularly important for a larger, heavier structure than the standard size.
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.

More room, without a longer build

Modular Sauna Kalle L scales up the standard Kalle format to 7.6 square metres, giving genuine room for a small group while keeping the same pre assembled modular construction that makes installation considerably more predictable than a full panel built cabin of similar size. Solid spruce walls throughout mean the larger floor area does not come with any compromise on how well the cabin holds heat once warmed, an important consideration as size increases and there is simply more air volume to manage.

The L designation reflects a meaningful step up in scale rather than a marginal increase, with the extra space noticeable as soon as more than two people are inside and want to sit without their knees touching. Because the wall sections arrive pre built, the larger size does not translate into a proportionally longer or more complex installation, which is one of the main practical advantages of the modular approach over traditional log built construction once a cabin grows past a certain footprint.

This size suits households who know they want more than a personal sauna but do not necessarily want the scale or installation commitment of the largest log built models in the range. It is a straightforward route to a properly sized group sauna, without the multi weekend build that an equivalent log cabin would typically demand of a self assembling owner. 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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More room for small group sessions

More room for small group sessions, without a longer build. Factory-assembled, fully insulated wall sections go together quickly, sized comfortably for six to seven people rather than a compact personal sauna.

Built for households who've outgrown smaller saunas

Built for households who've outgrown a smaller sauna but still want the reliability of modular construction. Insulated throughout, tempered glass window, sized for genuine small group use.

Insulated sections that scale up well

Insulated factory sections scale up without losing the speed advantage over log construction. Kalle L handles six to seven people comfortably, suited to families or regular friend groups wanting more space.

Consistent heat for small groups

For small groups wanting consistent heat and a faster build, Kalle L delivers both. Fully insulated, factory-assembled sections, sized to comfortably outgrow a personal sauna without committing to a full log cabin project.

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."

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

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.

CREATE MY SAUNA RITUAL

Frequently Asked Questions

More floor area means comfortable use by larger groups without giving up the faster, more predictable installation that factory-assembled wall sections offer over traditional log construction.

Comfortably six to seven people, making it suited to small group sessions or larger family use beyond what a compact modular sauna would handle.

Installation remains faster than equivalent-sized log construction since the larger sauna still arrives as pre-assembled, insulated wall sections rather than being built on site panel by panel.

Yes, the factory insulation is specifically designed to support consistent heat retention through colder months, making modular saunas a reliable choice for year-round UK garden use.

This model has a 440 by 225 centimetre footprint, needing a reasonably sized but not exceptional garden spot, smaller than most multiroom log sauna equivalents at a similar capacity.

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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