
Description
Description
Our SHP bench boards in thermo alder are made for sauna benches that stay stable and comfortable for years. The SHP profile is the standard for sauna seating: a rectangular section with smoothly radiused R3 edges, cut at a full 28 mm thickness to resist warping and twisting over time. Thermo alder brings a warm hazel-brown colour and subtle texture, and because it is heat-treated it will not splinter or overheat in the sauna. Each pack contains four boards 140 mm wide, in lengths of 2100 mm or 2400 mm, and this listing is discounted to reflect potential colour variation, so boards may show a slightly darker tone. They suit a DIY build well, or we can make up your seating through our Sauna Bench Fabrication Service.
Features
Technical Specification
| Dimensions | |
| Thickness | 28mm |
| Width | 140mm |
| Lengths available | 2100mm or 2400mm |
| Edge radius | R3 (3mm radius on each corner) |
| Pack size | 4 boards |
| Product | |
| Profile | SHP sauna bench board |
| Timber | Thermo alder (thermally modified) |
| Grade | A-grade |
| Recommended wastage allowance | 15% |
Timber
Thermo alder has a hazel-brown colour and a subtle texture favoured by many. Like other heat-treated timbers it carries a low risk of warping and twisting, and it will not splinter or overheat at sauna temperatures. Timber is a natural product, so some colour variation between boards, packs and batches should be expected.
Colour Variation
No two pieces of timber are exactly alike: colour, grain pattern and texture vary naturally, sometimes considerably along the length of a single board. This particular timber may present a slightly darker tone, and colour can vary from season to season, batch to batch, and supplier to supplier. To keep an installation consistent, avoid mixing timber from different sources; if a close colour match is essential, we strongly recommend bringing a sample and collecting the material in person. This product is priced at a discount to reflect the potential colour variation.
Profile
SHP is the standard timber profile for sauna bench boards: a rectangular profile with radiused corners, usually R2, R3 or R4 (2mm, 3mm or 4mm radii on each corner). The radius value describes the smoothness of the board edge, and these boards are finished at R3. The 28mm thickness is important to prevent warping and twisting over time.
Quality & Wastage
Our thermo alder 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. Our interactive bench board calculator on finnmarksauna.com can help you estimate quantities. General sauna wood grading standards apply to this timber.
Installation & Fabrication
These boards are well suited to a DIY bench build, and other timbers are available across our wider SHP bench board collection. Alternatively, our Sauna Bench Fabrication Service can create your ideal sauna bench system for you; contact us to discuss your design.
Ordering & Delivery
Timber orders ship on a palletised service because of their size, and delivery may be kerbside with some handballing off the vehicle. Shipping is calculated at checkout and varies between UK Mainland, Highland and Island postcodes. We ship lengths up to 2400mm at standard rates; if we do not stock your required length but have a longer board available, our cutting service can cut it down for a small fee. You purchase the full length and the off-cut travels on the pallet. For longer lengths, the cutting service, or advice on sizes and quantities, call +44 (0) 20 8050 2895 or email 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.
Description
Our SHP bench boards in thermo alder are made for sauna benches that stay stable and comfortable for years. The SHP profile is the standard for sauna seating: a rectangular section with smoothly radiused R3 edges, cut at a full 28 mm thickness to resist warping and twisting over time. Thermo alder brings a warm hazel-brown colour and subtle texture, and because it is heat-treated it will not splinter or overheat in the sauna. Each pack contains four boards 140 mm wide, in lengths of 2100 mm or 2400 mm, and this listing is discounted to reflect potential colour variation, so boards may show a slightly darker tone. They suit a DIY build well, or we can make up your seating through our Sauna Bench Fabrication Service.
Features
| Dimensions | |
| Thickness | 28mm |
| Width | 140mm |
| Lengths available | 2100mm or 2400mm |
| Edge radius | R3 (3mm radius on each corner) |
| Pack size | 4 boards |
| Product | |
| Profile | SHP sauna bench board |
| Timber | Thermo alder (thermally modified) |
| Grade | A-grade |
| Recommended wastage allowance | 15% |
Timber
Thermo alder has a hazel-brown colour and a subtle texture favoured by many. Like other heat-treated timbers it carries a low risk of warping and twisting, and it will not splinter or overheat at sauna temperatures. Timber is a natural product, so some colour variation between boards, packs and batches should be expected.
Colour Variation
No two pieces of timber are exactly alike: colour, grain pattern and texture vary naturally, sometimes considerably along the length of a single board. This particular timber may present a slightly darker tone, and colour can vary from season to season, batch to batch, and supplier to supplier. To keep an installation consistent, avoid mixing timber from different sources; if a close colour match is essential, we strongly recommend bringing a sample and collecting the material in person. This product is priced at a discount to reflect the potential colour variation.
Profile
SHP is the standard timber profile for sauna bench boards: a rectangular profile with radiused corners, usually R2, R3 or R4 (2mm, 3mm or 4mm radii on each corner). The radius value describes the smoothness of the board edge, and these boards are finished at R3. The 28mm thickness is important to prevent warping and twisting over time.
Quality & Wastage
Our thermo alder 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. Our interactive bench board calculator on finnmarksauna.com can help you estimate quantities. General sauna wood grading standards apply to this timber.
Installation & Fabrication
These boards are well suited to a DIY bench build, and other timbers are available across our wider SHP bench board collection. Alternatively, our Sauna Bench Fabrication Service can create your ideal sauna bench system for you; contact us to discuss your design.
Ordering & Delivery
Timber orders ship on a palletised service because of their size, and delivery may be kerbside with some handballing off the vehicle. Shipping is calculated at checkout and varies between UK Mainland, Highland and Island postcodes. We ship lengths up to 2400mm at standard rates; if we do not stock your required length but have a longer board available, our cutting service can cut it down for a small fee. You purchase the full length and the off-cut travels on the pallet. For longer lengths, the cutting service, or advice on sizes and quantities, call +44 (0) 20 8050 2895 or email support@finnmarksauna.com.
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.





