Timber Cladding Specialists

Alder has become one of the most popular sauna timbers in the UK — and for good reason.

Smooth to touch, stable in heat, low resin content, and naturally suited to modern sauna interiors.

Our latest guide explains why alder works so well for sauna cladding and benches, how it compares to other species, and what to consider before buying.

👉 Read the full article:
https://timbercladdingspecialists.co.uk/blog-article/alder-sauna-timber-uk

✔ Sauna cladding
✔ Bench boards
✔ Heat performance
✔ Maintenance & lifespan
✔ Alder vs Aspen comparison

Alder Sauna Timber UK — Cladding, Bench Boards & Why It's the Finnish Choice (2026) Alder sauna timber UK — why alder is the traditional Finnish sauna species, profiles available, how it compares to ThermoWood and spruce, and where to buy alder sauna cladding and bench boards in the UK.

ThermoWood isn’t just one product — understanding the difference between Thermo-D and Thermo-S can completely change performance, stability, and lifespan on your project.

If you're specifying cladding in the UK, this is critical reading before you buy.

👉 Read the full breakdown:
https://timbercladdingspecialists.co.uk/blog-article/thermowood-thermo-d-vs-thermo-s-explained-uk

✔ Durability differences
✔ Stability & movement
✔ Best use cases (cladding vs internal)
✔ What most suppliers don’t explain

ThermoWood Explained — Thermo-D vs Thermo-S, Pine vs Spruce UK Guide 2026 ThermoWood explained — what Thermo-D and Thermo-S mean, the difference between Thermo Pine and Thermo Spruce, technical data, Durability Class 2, and how to specify for UK cladding projects. 2026 guide.

Lunawood ThermoWood is often specified as a go-to cladding material — but many projects choose it without fully understanding what it is.

ThermoWood is timber modified using heat and steam (no chemicals), which improves durability, stability, and resistance to weather.

That’s why it’s widely used across façades, decking, and external applications — with service life often reaching decades when detailed correctly.

But:
• Is Lunawood the only option?
• Does it meet UK fire requirements?
• Are there better-value alternatives?

We’ve broken it down clearly here:
https://timbercladdingspecialists.co.uk/blog-article/lunawood-thermowood-cladding-uk