Channel Siding Cladding

Which channel siding should I choose?

For outside walls, Air Dried Oak is supplied untreated and weathers to a silver-grey, and Douglas Fir is a lower-cost British softwood. The two Thermowood boards are thermally modified with heat and water only, with no chemicals, and can go inside or out. For indoor feature walls and ceilings, see Kiln Dried Oak, Kiln Dried Douglas Fir and Kiln Dried English Ash, which are for interiors only.

Grades

Oak, Douglas Fir and English ash come in Character grade, with knots and natural variation, or First grade, which is cleaner. Redwood Thermowood is Character grade and Radiata pine Thermowood is Prime.

Finishes

Our external boards are supplied untreated. Left alone they weather to a silver-grey; to hold the colour for longer or add a weather-resistant finish, see our cladding treatments. For indoor boards see wood oils and finishes.

Fixings, trims and samples

Use stainless steel fixings with oak, as its tannin reacts with ordinary steel and causes dark stains; use stainless or coated fixings with Douglas Fir. See our cladding fixings, finish corners and edges with trim boards, and order a cladding sample if you're not sure which timber to choose. For a flatter look with a tongue and groove joint see tongue and groove cladding, or for a traditional overlap see shiplap cladding.

FAQ

What is channel siding cladding?

A profile where the boards overlap so that a recessed channel shows between each board, giving strong shadow lines.

Should it be fitted horizontally or vertically?

Channel siding is usually fitted horizontally, so the shadow lines run along the length of the wall.

Which channel siding can I use outside?

Air Dried Oak, Air Dried Douglas Fir, Redwood Thermowood and Radiata Pine Thermowood. The kiln dried oak, Douglas Fir and English ash channel siding is for interiors only.

What sizes do you sell?

Air Dried Oak and Douglas Fir at 120 or 142 × 20 or 24 mm, Redwood Thermowood at 142 × 22 mm, and Radiata Pine Thermowood and the kiln dried boards at 142 × 20 mm. All come in random lengths of 1200 to 3600 mm.

Can I have set lengths?

Yes. Add our set lengths product for an extra charge per m², and choose the same number of m² of set lengths as cladding.

Is it treated?

No. It is supplied unfinished; see the finishes above.

How is it priced and delivered?

Per m² ex VAT. UK delivery in up to 10 working days on our own crane offload vehicles, nationwide, or collect from Corby.