· European aspen ·
European aspen is a pale, close-grained hardwood with a smooth face and almost no knots. Its low thermal conductivity is the reason it lines so many sauna interiors: the surface stays comfortable against skin even when the room is hot. It machines cleanly, takes treatment evenly, and holds its shape well once thermally modified.
A quiet timber. It gives the room its light rather than its pattern.
Why it lasts
The same STS4 board in its natural state or heat treated, so the room can read pale and airy or warm and grounded.
The profile
STS4 is a tongue and groove profile with a shallow relief on the back face. The tongue disappears into the groove of the next board, so the wall reads as a run of clean lines with no fixings on show. Ninety millimetres of board, eighty millimetres of face.
Heat treated
Thermal modification bakes the timber rather than coating it. Nothing is added. The colour moves through to a warm brown right the way into the section, and the board becomes more settled about moisture, which matters in a room that swings between hot and cold.
The bundle
The mill straps six boards to a bundle and we sell them that way. Nothing gets opened, sorted or handled twice, so the timber arrives as clean as it left the line.
The finishes
One panel, one pattern; the character comes from the wood. Every finish is solid, hand-finished timber, cut and laid by hand in Estonia.
Pale, cool toned and close to knot free. European aspen in its natural state.
The same aspen, heat treated until the colour deepens to a warm brown and the timber sits more stable.
Plan your order
Enter your wall and we'll work out the coverage, panels and packs, with waste allowance already added. A guide only; measure twice before you commit.
You'll need
6 hand-laid panels per pack, covering ≈ 1 m² total
Enter your wall width and height and we'll work out the packs, panels and coverage.
Indicative total $944, from Pricing from $118 AUD per pack. Final price varies by finish.
Common questions
A real human is one click away, but most of what we get asked is right here.
Talk to a specialistIn full bundles of 6 boards. We do not split bundles, so the timber stays strapped and protected until it reaches you. One unit in the cart is one bundle.
6 boards at 2.1 m gives 12.6 lineal metres, which covers about 1.01 m² of wall.
The tongue sits inside the groove of the next board, so 10 mm of every board is hidden in the joint. Coverage is always worked out on the 80 mm face, not the 90 mm width.
This profile is offered in 1.8 m, 2.1 m, 2.4 m, 2.7 m and 3.0 m. Each length is its own listing, and the length selector at the top of this page moves between them.
Aspen is pale and cool toned. Thermo-aspen is the same timber after heat treatment, which deepens the colour to a warm brown and makes it more dimensionally stable. The profile, the cover and the bundle are identical. Only the tone and the price change.
Aspen has low thermal conductivity, so it stays comfortable against the skin at temperature. It is close to knot free, it machines cleanly and it takes a surface treatment evenly.
It ships unfinished. Sauna lining is normally left bare. If you do want to treat it, use a product made for sauna interiors.
No. We do not state a fire rating or class for this timber. Check what your project needs with your builder or certifier.
Made to order in Estonia and shipped to Australia. Talk to us before you order so we can confirm timing for your project.
Start planning your wall
Tell us about the wall and the look you're after. We'll match the finish, work out coverage and trade pricing, and get it to site.
Just your name and email, and your download begins. Your details stay with Sauna Ritual.
