Barrel Saunas

Barrel saunas offer the ultimate wellness experience, inviting you to relax, unwind and recharge. At Finnmark, each barrel sauna is made from premium Nordic thermo-spruce, chosen for its durability, weather resistance and performance in the UK climate. The curved design of a sauna barrel promotes efficient heat circulation, helping each outdoor barrel sauna heat quickly and evenly.

Our outdoor barrel saunas are available in a range of sizes to suit different spaces and lifestyles. Every barrel is supplied as a flat-pack kit for straightforward delivery and installation. Need help choosing? Explore The Complete Guide to Finnmark Barrel Saunas to compare models, heater options and installation considerations.

Luxury 40mm Thermo-Wood™

40mm Nordic thermo-spruce delivers exceptional insulation and weather resistance.

Simple Self-Assembly Kit

Complete kit for straightforward assembly—no specialist tools required.

Quickly Reaches Temperature

Reaches optimal temperature so you can enjoy your sauna sooner.

Optimal Heat Circulation

Engineered design circulates warmth for consistent temperature throughout.

Free UK Delivery*
2-Year Warranty
1000+ Barrel Saunas Sold
Simple Self Assembly
40mm Thermo-Wood™

A Wooden Barrel Sauna for Every Lifestyle

At Finnmark, our outdoor barrel saunas combine timeless design with modern comfort. From compact two-person models to spacious family-sized designs, there's a barrel sauna to suit every garden and lifestyle.

2 Person Barrel Saunas: Compact and efficient, these barrel saunas are ideal for smaller gardens and private wellness spaces. Perfect for solo sessions or couples seeking a personal retreat at home.
4 Person Barrel Saunas: A versatile option with room to relax alone or enjoy sauna sessions with family and friends. This barrel sauna offers extra space without a large footprint.
6 Person Barrel Saunas: Our most popular mid-size barrel saunas, designed for families and shared sauna rituals. Generous in space while remaining practical for most outdoor settings.
8 Person Barrel Sauna: Built for larger groups, hospitality settings, and dedicated wellness spaces. These outdoor barrel saunas create a striking focal point while delivering an authentic sauna experience.

Each barrel sauna is available with a choice of electric heaters, while most models can also be configured with a traditional wood-fired heater. Panoramic glazing and LED sauna lighting are available across the range, allowing you to tailor the experience to your preferences.

Compare Model Specifications

Barrel Saunas UK FAQ's

Why are these saunas barrel shaped?

The barrel shape isn't just for appearance. The curved design of the barrel sauna reduces unused air space and encourages heat to circulate evenly throughout, helping it warm up efficiently and hold a consistent temperature. It also allows rainwater to run off naturally, making barrel saunas particularly well suited to outdoor use.

Are barrel saunas insulated?

Barrel saunas are not typically insulated in the same way as a house or garden room. Instead, they rely on thick timber walls and an efficient curved design to retain heat.Our barrel saunas are crafted from premium Nordic thermo-spruce, a thermally modified timber specifically chosen for its exceptional durability and stability in the UK's cold, wet climate.

Thermo-treatment significantly improves resistance to moisture, rot, and decay while reducing the risk of warping, twisting, and shrinkage over time. While untreated timber may be suitable in drier regions, the demanding conditions of British winters make thermo-treated wood the preferred choice for long-term outdoor performance. That's why every Finnmark barrel sauna is built exclusively from thermo-treated timber, ensuring greater longevity, lower maintenance, and a more stable structure year after year.

Are your barrel saunas supplied flat-packed?

Yes. Every Finnmark barrel sauna is supplied as a flat-pack kit for straightforward delivery and installation. Detailed assembly instructions are included, and many customers with basic DIY experience complete the build over a weekend. For seasoned log cabin builders or experienced installers, assembly can often be completed in as little as 4 hours with a team of 2–3 people. The flat-pack design also allows barrel saunas to be delivered to gardens and outdoor spaces that would be challenging to access with a pre-built structure.

How much does a barrel sauna cost?

The cost of a barrel sauna depends on its size, specification, and heater choice. Smaller models offer an accessible entry point into home sauna ownership. Larger designs create a more luxurious sauna experience, with features such as panoramic glazing, relaxation terraces, WiFi-controlled heaters, and premium sauna technology. Explore our comparison guide to compare models and find the right barrel sauna for your space and budget.