Sauna Bench Wood
Sauna bench wood from Finnmark is engineered for high heat: low-conductivity, resin-free Nordic timber boards in Aspen, Alder, Cedar, and thermally modified variants. Each piece is kiln-dried, smooth-planed and knot-light, with safe radiused profiles for quick install across DIY sauna builds and large scale commercial projects. Featuring high-quality sauna bench boards, adjustable bench feet and premium bench framing timber, for a clean, professional finish.
Every board is FSC®/PEFC certified and finished for easy maintenance. Browse profiles and sizes, or let us fabricate to size for a seamless install.
Looking to learn more about sauna wood? We've created a dedicated guide titled 'Best Wood for Saunas (& Why)'
Sauna Bench Boards: Our Species
Our sauna bench wood is specified the Finnish way – cool on contact, stable through cycles, clean in finish. Each board is engineered to reduce heat transfer for safe, comfortable seating, whether you’re working to a clear budget or commissioning a fully tailored interior.
For true sauna comfort, select low-density softwoods with low thermal conductivity and minimal resin bleed. Aspen and Alder are knot-light and smooth-grained, so they stay cooler on skin and finish cleanly; Western Red Cedar adds a gentle aroma with similarly low heat transfer. High-density hardwoods (oak/ash/beech) hold heat and can feel harsh at temperature – hence they’re avoided for benches.
Species of wood for sauna benches (value → premium):
- Thermo Spruce / Thermo Pine: thermo stability on a budget; reliable, uniform look.
- Aspen: very low heat transfer; pale, modern tone.
- Alder: warm hue, smooth grain; consistently comfortable.
- Thermo Aspen: deeper colour, enhanced dimensional stability.
- Thermo Alder: richer tone; excellent for heavier duty cycles.
- Dark Thermo Alder: premium, dark aesthetic with superb stability.
Western Red Cedar available where specified for aroma and comfortable surface temperature.
All timbers are responsibly sourced from slow-grown Nordic forests and selected for performance in heat and humidity. Choose ready-made sauna benches for cost-efficient builds, or have us fabricate made-to-measure benching for complex layouts and perfectly aligned tiers.
Everything for the Build: Sauna Bench Wood & More
Finnmark supplies the whole interior, not just sauna bench wood. Once you’ve chosen the wood species for your sauna benches, carry that standard across the room with sauna cladding boards that run straight and true, fixed to ventilated sauna battens that preserve airflow behind the lining and keep moisture moving. Tight junctions are finished with corner mouldings and edge trims so door returns, glazing edges and ceiling meets read cleanly. If you want texture, choose our premium log panels and feature walls that stay stable through cycles, and are calibrated to sit flush with your main cladding for a single plane.
If you’re self-building, we’ll help you get it right the first time. Our team can advise on board selection, widths and spans, bench heights and tiering, ventilation gaps and fixing methods. We can price a complete bill of materials free of charge, so DIY buyers know exactly what to order and trades can proceed without delays.
Keep the project simple: one supplier, expert knowledge, authentic Finnish results. Tell us how you want the room to feel and how it will be used; we’ll specify profiles and thermo options to suit.
Sauna Bench Wood - FAQs
What is the best wood for sauna benches?
Choose low-density, knot-light softwoods that don’t overheat on contact. Aspen and Alder are classics for their soft touch and light tone; Western Red Cedar adds a gentle aroma. For enhanced stability and a richer shade, select Thermo Aspen or Thermo Alder. (Avoid dense hardwoods like oak or ash – they feel too hot under sauna heat.)
Can sauna bench wood be treated or oiled?
Yes – leave bare for the most natural feel, or apply a light, sauna-specific paraffin oil to help resist moisture and staining. Do not use varnishes, waxes or film-forming finishes; benches must breathe to remain comfortable and hygienic.
Are your sauna bench boards suitable for commercial use?
Absolutely. Our thermally modified boards are a proven choice for high-use spas and gyms thanks to improved dimensional stability and durability. Speak to us for guidance on board selection, framing and ventilation for heavy-duty cycles.
How should I maintain or clean sauna bench wood?
After bathing, ventilate fully and wipe benches with a soft cloth. For periodic deep cleans, use a dedicated sauna cleaner and a soft brush, then rinse and dry with the door open. Lightly sand to refresh surfaces if needed. Using our sauna pillows and seat covers helps keep benches clean day-to-day.
Are all your sauna bench woods sustainably sourced?
Yes. All sauna bench boards in the Finnmark range are FSC® or PEFC certified and sourced from sustainably managed Nordic forests. Each piece reflects our commitment to responsible production and enduring craftsmanship.
Can you help me choose the right wood for my sauna project?
Of course. Whether you’re planning a home sauna or a commercial installation, our team can help you select the ideal sauna bench wood and accessories for your design. Contact us here to discuss your project with one of our sauna specialists.
Speak to a Sauna Specialist
We’ll help you choose the right sauna bench wood for performance and appearance, then define a cohesive interior spec around it. As one of the UK’s leading authentic Finnish sauna suppliers, we back your project with practical expertise, verified sourcing and a specification you can build from with confidence.