External Cladding

Our external timber cladding is made for outside walls on houses, extensions, garden rooms, sheds, barns and stables. We machine every profile on site at our own sawmill, apart from painted featheredge, so cover widths stay consistent from board to board. External oak and Douglas fir boards are air dried at 24 mm. Thermowood is heat-modified for stability without chemical preservatives, and treated English softwood featheredge is our lowest-cost option. Choose a traditional look with featheredge, rebated featheredge or waney edge. For a flatter face, choose shiplap, half lap or tongue and groove. For contemporary designs, there's rain screen, board on board, channel siding and shadow gap. Prices are per m² ex VAT, and we deliver UK-wide in up to 10 working days on our own crane offload vehicles. Cladding for inside? See Internal Cladding.

Choose your timber

• Oak (24 mm): Air dried oak for exterior walls
• Douglas fir (24 mm): British Douglas fir: good value, weathers silver-grey
• Redwood Thermowood: Heat-modified, stable, no chemical preservatives
• Radiata pine Thermowood: Heat-modified, stable, no chemical preservatives
• Treated softwood featheredge: Our lowest-cost exterior cladding

• Machined on site: every profile is cut at our sawmill, apart from painted featheredge.
• TRADA-qualified graders: our timber is graded by our TRADA-qualified graders. Find out more
• FSC® and PEFC: all cladding is available with FSC or PEFC certification on request.
• Own crane offload delivery: UK delivery in up to 10 working days. Find out more

Finishing your cladding: all our cladding is supplied unfinished (apart from painted featheredge), so you can leave it to weather naturally or finish it to suit. For outside walls, see our cladding treatments, including Treatex exterior oils such as Treatex External Virgin Oak Oil and Treatex Douglas Fir Protection. For interiors, see wood oils and finishes, including Treatex Hardwax Oil Ultra.

Frequently asked questions

Which wood is best for exterior cladding?

• Air dried oak (24 mm), British Douglas fir (24 mm) and Thermowood all suit exterior walls.
• Douglas fir is good value, oak is a durable hardwood, and Thermowood is heat-modified for stability.

Is external cladding supplied finished, and do I need to treat it?

• It's supplied unfinished.
• Oak, Douglas fir and Thermowood can be left to weather naturally to silver-grey.
• To keep the original colour, finish them with one of our cladding treatments, such as Treatex External Virgin Oak Oil for oak or Treatex Douglas Fir Protection for Douglas fir.

What fixings should I use outside?

• Use stainless steel for oak, and stainless or specialist coated fixings for Douglas fir, to avoid black staining.
• See cladding fixings.

How much external cladding do I need?

• Divide the wall area by the cover width shown on the listing, then add 10% for cutting and waste.
• Add a further 10% for Thermowood, and allow about 30% extra for waney edge.