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Finnmark Sauna

Alder Sauna Wood Cladding STS3 140mm (Pack of 6) by Finnmark Sauna

Alder Sauna Wood Cladding STS3 140mm (Pack of 6) by Finnmark Sauna

Free UK Delivery Over £1500*
Regular price £ 148.99
Sale price £ 148.99 Regular price
Timber Type: Alder
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Description

Description

The STS3 Respect profile is a modern, sustainably crafted alder cladding for sauna walls and ceilings, distinguished by its narrow square grooves and lamellar construction. Building each board in layers improves stability, extends the life of the raw material and allows a wider range of dimensions than traditional manufacturing, with production by-products used for the base of the board so nothing is wasted. Each board is 15 mm thick and 140 mm wide, with an effective width of 130 mm once fitted, and packs contain six boards in a choice of 2100 mm or 2400 mm lengths. Alder is a popular timber for traditional saunas, light brown with warm pink undertones, and it stays comfortable to the touch in high heat while resisting twisting and warping. The profile integrates cleanly with our other cladding profiles, and we recommend a light treatment with paraffin oil, which slightly deepens the colour of the wood.

Features

  • Narrow square grooves: A precise, modern profile that integrates cleanly with other cladding profiles.
  • Lamellar construction: A layered board build improves stability and extends the life of the raw material.
  • Resource-efficient design: Production by-products form the base of the board without compromising durability or finish.
  • A-grade alder: Durable, knot-free boards with a low risk of splintering, twisting or warping.
  • Comfortable in heat: Alder does not overheat and has water-repellent properties, suited to hot, humid rooms.
  • Two lengths available: Choose 2100 mm or 2400 mm boards, supplied in packs of six.
  • Easy to care for: A light treatment with paraffin oil is recommended and slightly deepens the colour.

Technical Specification
Dimensions
Thickness15 mm
Width140 mm (effective width 130 mm)
Lengths available2100 mm or 2400 mm
Details
TimberAlder
ProfileSTS3 Respect (lamellar, narrow square grooves)
ConstructionLamellar board; production by-products used for the base layer
GradeA-grade
Pack size6 boards per pack

Timber

Alder is a popular choice in traditional saunas thanks to its natural qualities and low risk of twisting and warping. It has a light brown colour with warm pink undertones, and a subtle scent that resembles freshly cut hay, which many find pleasant in the sauna. Alder does not overheat and has water-repellent properties, so it performs well in hot and humid environments. As a natural product, the timber shows some colour variation between packs and batches.

Profile

STS3 Respect is a lamellar profile with distinctive narrow square grooves. The layered construction offers enhanced stability, significantly extends the lifespan of the raw material and allows a more flexible range of dimensions than traditional manufacturing techniques, with production by-products used for the base of the board. The profile integrates seamlessly with our other cladding profiles for contrast within a scheme, and the boards suit DIY projects as well as full sauna builds.

Quality & Wastage

Our alder sauna timber is A-grade: durable, knot free and with a low risk of splintering. We recommend a wastage allowance of 15%, which also covers the small risk of damage in transit. General sauna wood grading standards apply to this timber. Contact us if you are unsure how much you need for your sauna build.

Installation & Care

The boards are straightforward to fit and well suited to a DIY sauna build. An Installation and Maintenance Guide is available under the Downloadable Files tab on this page. We recommend treating the wood with paraffin oil, which slightly deepens its colour. Lifestyle images are representational only; the finished look will vary with the width and placement of the cladding.

Ordering & Delivery

Timber orders are shipped on a palletised service due to their size, and may require a kerbside drop. Shipping costs are calculated at checkout and vary between UK Mainland, Highland and Island postcodes. We usually ship lengths of up to 2400 mm; longer lengths cost significantly more to send. If we stock a longer board than you need, our cutting service can cut it to your required length for a small fee, with the off-cut added to the pallet. For longer lengths or the cutting service, contact our team on +44 (0) 20 8050 2895 or support@finnmarksauna.com.

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Delivery & Returns

Delivery

We offer fast and reliable delivery to customers across the UK and beyond. For full details on shipping times and costs, please review our delivery policy.

Returns

We offer hassle-free returns within 30 days of purchase, so you can shop with complete confidence. For details, see our returns policy.

Warranty & Quality Promise

We are committed to delivering products of the highest quality, for details surrounding warranty please contact us.

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