
Description
Description
Thermory's SHP bench boards in thermo alder are the quiet backbone of a well-built sauna bench. Heat treatment gives the alder a rich hazel-brown colour and a stable, splinter-free structure that stays comfortable at sauna temperatures. The full 28 mm thickness guards against warping and twisting, and the R3 radiused edges are smooth against the skin. Boards are 90 mm wide and supplied in packs of four, in 2100 mm or 2400 mm lengths, suited to a DIY build or our sauna bench fabrication service.
Features
Technical Specification
| Dimensions | |
| Profile | SHP (rectangular, radiused corners) |
| Thickness | 28 mm |
| Width | 90 mm |
| Edge radius | R3 (3 mm) |
| Available lengths | 2100 mm or 2400 mm |
| Pack size | 4 boards |
| Timber | |
| Timber species | Thermo alder |
| Treatment | Thermally modified (chemical free) |
| Grade | A-grade, knot free |
| Manufacturer | Thermory |
Timber
Thermo alder has a hazel-brown colour and subtle texture. Like other heat-treated timbers it has a low risk of warping and twisting, and it will not splinter or overheat at sauna temperatures. See the full Thermo Alder Sauna Wood range.
SHP profile
SHP is the standard profile for sauna bench boards: a rectangular section with radiused corners, usually R2, R3 or R4 (a 2, 3 or 4 mm radius on each edge). The 28 mm thickness is important to prevent warping and twisting over time. More timbers in this profile: SHP Sauna Bench Board Collection.
Quality & Wastage
A-grade timber: durable, knot free and with a low risk of splintering. We recommend a 15% wastage allowance for these bench boards, which also covers the risk of damage in transit. General sauna wood grading standards apply; the grading rules are in the Downloads section on this page. As a natural product, timber shows some colour variation between packs and batches.
Installation
The boards suit a DIY bench build, or our Sauna Bench Fabrication Service can create your ideal bench system.
Ordering & Delivery
Shipping is calculated at checkout and varies with order size and postcode; many timber orders travel on a palletised service and may be a kerbside delivery. Lengths up to 2400 mm ship at standard rates, and a cutting service is available to reduce shipping costs on longer timbers. Contact support@finnmarksauna.com or +44 (0)20 8050 2895.
Downloads
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
Thermory's SHP bench boards in thermo alder are the quiet backbone of a well-built sauna bench. Heat treatment gives the alder a rich hazel-brown colour and a stable, splinter-free structure that stays comfortable at sauna temperatures. The full 28 mm thickness guards against warping and twisting, and the R3 radiused edges are smooth against the skin. Boards are 90 mm wide and supplied in packs of four, in 2100 mm or 2400 mm lengths, suited to a DIY build or our sauna bench fabrication service.
Features
| Dimensions | |
| Profile | SHP (rectangular, radiused corners) |
| Thickness | 28 mm |
| Width | 90 mm |
| Edge radius | R3 (3 mm) |
| Available lengths | 2100 mm or 2400 mm |
| Pack size | 4 boards |
| Timber | |
| Timber species | Thermo alder |
| Treatment | Thermally modified (chemical free) |
| Grade | A-grade, knot free |
| Manufacturer | Thermory |
Timber
Thermo alder has a hazel-brown colour and subtle texture. Like other heat-treated timbers it has a low risk of warping and twisting, and it will not splinter or overheat at sauna temperatures. See the full Thermo Alder Sauna Wood range.
SHP profile
SHP is the standard profile for sauna bench boards: a rectangular section with radiused corners, usually R2, R3 or R4 (a 2, 3 or 4 mm radius on each edge). The 28 mm thickness is important to prevent warping and twisting over time. More timbers in this profile: SHP Sauna Bench Board Collection.
Quality & Wastage
A-grade timber: durable, knot free and with a low risk of splintering. We recommend a 15% wastage allowance for these bench boards, which also covers the risk of damage in transit. General sauna wood grading standards apply; the grading rules are in the Downloads section on this page. As a natural product, timber shows some colour variation between packs and batches.
Installation
The boards suit a DIY bench build, or our Sauna Bench Fabrication Service can create your ideal bench system.
Ordering & Delivery
Shipping is calculated at checkout and varies with order size and postcode; many timber orders travel on a palletised service and may be a kerbside delivery. Lengths up to 2400 mm ship at standard rates, and a cutting service is available to reduce shipping costs on longer timbers. Contact support@finnmarksauna.com or +44 (0)20 8050 2895.
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.





