Collection: Sauna, Hot Tub & Ice Bath Timber

We specialise in the world’s finest wellness-grade species — each selected for exceptional resistance to heat, moisture, steam and extreme temperature swings, while bringing natural beauty and therapeutic benefits to your project.

Interior Sauna Timber (Lining, Benches, Flooring, Door & Window Frames)

Our premium internal sauna timbers are low in thermal conductivity (stays cool to the touch even at high temperatures), naturally anti-microbial and delightfully aromatic:

Canadian Western Red Cedar – The gold standard. Rich red-brown tones, unmistakable fragrance and outstanding durability.

Hinoki Japanese Cypress – Light creamy colour, great scent, silky-smooth texture and legendary use in Japan’s finest onsen baths and spas. Excellent performance with a refined, minimalist aesthetic.

Sugi Japanese Cedar – Warm reddish-cinnamon heartwood with characterful knots, soft texture and gentle aroma. The most economical of the three without compromising on heat/moisture resistance or traditional Japanese authenticity.

All three timbers are proven performers in hot, humid or wet environments and are supplied kiln-dried and machined to various profiles.

Exterior Cladding for Outdoor Saunas, Hot Tubs & Ice Baths

Protect and beautify the outside of your wellness build with cladding that handles Australian weather effortlessly:

Yakisugi (Shou Sugi Ban) – Our charred Japanese Cypress cladding remains the most popular choice for outdoor saunas. The traditional fire-treatment creates a deep charcoal finish that's brushed off, exceptional weather/UV resistance and virtually zero maintenance, particularly with the black finish.

Any of our exterior-grade cladding profiles (Rosewood, Blackbutt, Spotted Gum, Ironbark etc) are also suitable and offer alternative colours and textures to suit your design.

Whether you’re building a carpenter building luxury home sauna's, a commercial wellness centre or a DIY backyard retreat, we’ll help you choose the perfect combination of interior and exterior timbers for performance, budget and style.

Contact Kosny Timber today for detailed pricing, samples, technical advice or custom machining. Let us supply the timber that turns your sauna, hot tub or ice bath into a lifelong sanctuary.