Crafting Your Custom Sanctuary: A Complete Guide to the Terra Sauna Range & Bespoke Options
At TerraSauna, we believe that true luxury lies in personalization. A sauna isn't merely an outdoor wooden structure—it is a private retreat designed for daily rejuvenation, social gathering, and deep physical wellness.
When exploring our collection, customers often ask: "Can this sauna be adapted to fit my exact garden dimensions, preferred heat source, or timber taste?"
The answer is always yes.
Unlike mass-produced off-the-shelf units, every single sauna from TerraSauna is built in a small-scale, artisanal factory focused on small-batch craftsmanship. Because we prioritize bespoke quality over mass assembly, every model in our collection can be modified to your exact specifications. From compact garden footprints to expansive 6-metre wellness suites, custom wood choices, and top-tier Scandinavian heaters, we build your sanctuary precisely the way you envision it.
Quick Specs & Customization At A Glance
| Specification Category | Available Options & Upgrades |
|---|---|
| Sauna Models | The Quadro, The Quadro Exilis, The Cadus New, The Cadus, The Cupa, The Cubus, The Cubus 4m, and The Bespoke (plus The Labrum Cold Plunge & The Foco Fire Pit) |
| Interactive 3D Studio | Live real-time 3D configurators on The Quadro, The Quadro Exilis, The Cubus 4m, The Cadus, and The Cadus New (customise RAL colours, timber, heaters & lighting) |
| Custom Dimensions | Scalable lengths from 1.45m up to 6.0m and widths up to 2.35m |
| Timber Profiles | Standard: Kiln-Dried Spruce cladding with Alder or Aspen benches Thermo Upgrade: Thermo-Spruce cladding with Thermo-Alder or Thermo-Aspen benches |
| Heating Systems | Wood-burning stoves or high-efficiency electric heaters |
| Heater Brands | Harvia, Narvi, HUUM, or custom-built heater installations |
| Layout Options | Open relaxation porches, private changing & shower rooms, half & full panoramic glass windows |
| Roofing & Finishes | Weatherproof bitumen shingles in Black, Green, or Terracotta Red (plus EPDM on Cube suites); custom exterior stains & RAL Classic paints |
| Turnkey Service | Island delivery, HIAB/crane positioning, base construction, and 15+ years garden landscaping expertise |
1. Our Complete Sauna Collection
Each model in our range offers a distinct architectural profile, engineered for exceptional thermal efficiency and seamless integration into your garden landscape.
The Quadro (Square Profile) — Prices start from £7,675.00
The Quadro (2.0m × 2.0m square profile) introduces a modern square-profile silhouette to outdoor sauna design. By expanding the upper interior corners compared to traditional barrels, the Quadro provides generous vertical headroom, expansive two-tier L-shaped bench space for 4 to 6 bathers, and striking contemporary aesthetics. Explore it live with our Interactive 3D Configurator.
The Quadro Exilis (Ultra-Compact Square Profile) — Prices start from £5,495.00
Designed for courtyards, patios, and intimate garden spaces where footprint is at a premium, The Quadro Exilis (1.35m × 1.45m × 2.0m) delivers the contemporary square-profile architecture of the Quadro range in an ultra-compact footprint for 1 to 2 bathers, complete with two-tier Alder or Thermowood benches and Harvia Vega or Cilindro electric heater options. Customise it in real time with our Interactive 3D Configurator.
The Cadus New (Compact Barrel) — Prices start from £6,995.00
Engineered specifically for space-conscious gardens and intimate footprints, The Cadus New (Ø 2.3m × 2.5m) is 0.5m shorter than our classic barrel while comfortably seating 4 to 6 people. It delivers rapid heat-up times and supreme energy efficiency without sacrificing an ounce of luxury. Design yours in our Interactive 3D Configurator.
The Cadus (Classic Barrel) — Prices start from £7,995.00
Our signature barrel sauna model, The Cadus (Ø 2.3m × 3.0m+, various lengths available), remains a timeless favorite. Its curved cylindrical walls promote natural thermal convection, drawing heat down continuously for even temperature distribution for 6 to 8 bathers. Tailor your stave colours, windows, and heater in our Interactive 3D Configurator.
The Cupa (Vertical Profile) — Prices start from £6,495.00
The Cupa (Ø 2.0m × 2.2m H) offers a space-saving vertical tower sanctuary layout for 2 to 4 people. Designed for tighter garden corners, deck installations, or dedicated patio wellness spots, it combines a compact footprint with immersive, intense steam performance.
The Cubus (Insulated Architectural Luxury) — Prices start from £14,495.00
For the ultimate year-round luxury spa experience, The Cubus (2.3m wide, various lengths available for 6 to 8 bathers) represents modern sauna engineering. Featuring thick, fully insulated walls, panoramic glazing, EPDM roofing, and architectural cladding, the Cubus retains maximum heat in any weather season.
The Cubus 4m (Dual-Room Sauna & Shower Suite) — Prices start from £19,000.00
The Cubus 4m (4.0m × 2.3m footprint, with different sizes available) is our flagship dual-room architectural wellness suite for 6 to 8 people. It combines a panoramic hot sauna room featuring two-tier waterfall Thermowood or Alder benches with a dedicated shower and changing vestibule, wood-fired (exterior feed) or electric stove options, and full structural insulation. Experience its interior and exterior finishes via our Interactive 3D Configurator.
The Bespoke (Custom Architectural Builds) — Price on Application
Have a specific architectural drawing, complex garden boundary, or multi-room wellness vision? The Bespoke option lets you design a completely custom outdoor building from the ground up, tailored down to the millimeter.
2. Custom Dimensions: Built Up to 6m Long & 2.3m Wide
No matter which model catches your eye, you aren't confined to standard off-the-shelf sizing.
- Versatile Footprints: We manufacture saunas in a vast array of length options—from compact 2.0m retreats all the way up to expansive 6.0m lengths.
- Width & Height: Standard widths extend up to 2.3m wide, providing ample room for wide multi-tier benches or central heater placement.
- Custom Room Partitioning: Larger builds can be divided into multi-zone layouts—such as combining a 3.0m sauna hot room with a 1.5m private changing vestibule and a 1.5m open-air front porch.
3. Premium Heating Choices: Wood-Burning vs. Electric
The heart of every sauna is its heater (kiuas). We offer complete freedom over your thermal heat source:
Wood-Burning Stoves
For purists who cherish the authentic sauna ritual, wood-burning stoves deliver a gentle, radiant heat accompanied by the soothing crackle of real logs and soft, abundant steam (löyly). Ideal for off-grid sanctuaries or classic outdoor vibes.
Electric Heaters
If you prefer effortless, push-button operation and precise digital temperature controls, electric heaters heat up quickly and can even be scheduled remotely so your sauna is ready the moment you return home.
World-Leading Heater Brands & Custom Builds
We supply and install top-tier Scandinavian heater manufacturers known worldwide for durability and design:
- Harvia: Finnish engineering legendary for reliability, rapid heating, and timeless rock baskets.
👉 Read more: Harvia Sauna Heaters
- Narvi: Renowned for exceptionally low emissions, heavy-duty steel fireboxes, and silky smooth steam production.
👉 Read more: Narvi Sauna Heaters
-
HUUM: Estonian design icons featuring stunning drop-shaped stone cages, wifi app control, and minimalist elegance.
👉 Read more: HUUM Sauna Heaters -
Custom Builds: Unique custom stove encasements, safety railings, and specialized rock configurations tailored to your space.
4. Timber, Wood & Colour Options: Kiln-Dried, Thermo-Treated, Stains & Exterior Paint
The choice of timber defines both the visual warmth and tactile feel of your sauna. We offer two premium material tiers along with a vast range of exterior finishes:
Standard Timber Build
- Exterior & Frame: Kiln-Dried Spruce — Selected for its high strength-to-weight ratio, tight grain structure, and excellent exterior durability when treated with protective weather stains.
- Interior Benches: Alder or Aspen — High-grade, knot-free natural hardwoods that remain comfortably cool against bare skin, resist splintering, and emit a pleasant natural forest aroma.
Premium Thermo-Treated Timber (Thermowood) Upgrade
For superior longevity, darker tones, and enhanced moisture resistance, upgrade to our Thermowood collection:
- Cladding: Thermo-Spruce — Thermally modified at high temperatures (200°C+) in an oxygen-free environment. This process alters the wood's cellular structure, rendering it virtually immune to rot, swelling, or shrinking under extreme weather.
- Benches & Accents: Thermo-Alder or Thermo-Aspen — Beautiful rich amber and deep chocolate tones with velvety smooth tactile feel, offering extraordinary dimensional stability and elevated thermal insulation.
Protective Weather Stains for Standard Timber Builds
To protect standard timber from all weather conditions while accentuating the natural grain, we offer a range of rich protective stains:
Exterior Wood Cover Paints for Thermo-Treated Timber
For Thermo-Treated builds, high-coverage exterior wood paints provide long-lasting weather protection while giving you an unlimited choice of custom colors to match your home or garden design seamlessly.
👉 View full color palette: RAL Classic Colour Chart
5. Roof Shingles, Glazing & Atmospheric Touches
Complete your custom sauna build with curated design accents:
High-Grade Bitumen Roofing Shingles
To protect your sauna sanctuary against all weather elements, we offer heavy-duty bitumen roof shingles in three distinct architectural color choices:
- Roof Protection Options:
- Black: Sleek, modern, and versatile profile that pairs with any exterior cladding tone.
- Green: Blends harmoniously into lush garden foliage and natural outdoor environments.
- Terracotta Red: Provides a warm, classic earthy contrast against timber walls.
- Glass & Windows: Choose from solid timber end walls, half-moon glass windows, or full panoramic glass backwalls to frame your garden or sea view.
- Ambient Lighting: Integrated under-bench LED strip lighting and indirect backlighting to set a tranquil evening mood.
6. Complete Turnkey Service in Guernsey: Delivery to Landscaping
Purchasing a sauna with TerraSauna is a seamless, stress-free experience from start to finish. We handle every detail—from crane delivery logistics to complete garden base preparation and fine turf landscaping:
Professional HIAB Crane Delivery
Garden Base Preparation & Horticulture Landscaping (15+ Years Experience)
- Bespoke Consultation & Site Visit: We visit your property to evaluate garden access, orientation, electrical requirements, and base foundation needs.
- Delivery & Crane Hire: All pricing includes full island delivery and specialized HIAB/crane lifting to maneuver your sauna into position.
- Garden Base & Landscaping: With over 15 years of professional experience in horticulture and garden landscaping, our team doesn't just deliver a sauna—we can design and construct your entire outdoor sanctuary. From laying reinforced timber decking or concrete bases to planting surrounding greenery, we craft complete wellness environments.
🌿 Ready to Design Your Custom Sanctuary?
Whether you want to customize The Quadro, scale The Cadus to a 6-metre layout with a HUUM heater, or explore Thermo-Spruce finishes, we are here to bring your vision to life.
📞 Call or WhatsApp us on 07781 456815
📧 Email us at info@terrasauna.gg
📍 Explore our full collection at www.terrasauna.gg/sales/