Dark Oak Exterior Sauna Stain – 1 gallon | Heritage Sauna®

Dark Oak Heritage™ Exterior Sauna Stain – 1 gallon is a semi-transparent preservative finish formulated specifically for exterior sauna wood surfaces that demand long-lasting defense. This EPA-registered, low-VOC stain penetrates deeply into the grain, helping to keep wall and trim boards structurally sound while exposed to rain, sun, and fluctuating temperatures. UV-absorbing pigments support a rich dark oak tone and reduce color washout, while added protection against moisture helps limit swelling, checking, and surface growth. Suitable for barrel, cabin, and custom outdoor saunas, the climate-resistant formula performs reliably even in regions with harsh winters. The stain can be recoated over time, simplifying ongoing care and extending service life without intensive sanding. Supplied in a convenient one-gallon container, Dark Oak Heritage™ Exterior Sauna Stain – 1 gallon offers a practical, professional-grade way to maintain a warm, elegant exterior appearance.

Flat-rate delivery of £274 covers every product and accessory to any UK mainland address; orders over £5,000 ship free. We process orders in 1–3 working days and the courier takes 3–6 working days. Large items come on a pallet and we phone to book a delivery day.

You can cancel within 14 days of delivery under the Consumer Contracts Regulations. Returns are processed within 7 working days of the goods arriving back with us. Read the full shipping policy and returns policy.