- Materials only: £35–£70 per m² depending on profile — feather edge at the lower end, double shadow gap at the upper end.
- Add £10–£15 per m² for battens, breather membrane, and stainless steel fixings.
- Add £25–£45 per m² for professional installation labour.
- Semi-detached house fully installed: £8,000–£18,000 — significantly more affordable than ThermoWood at comparable quality.
- No preservative treatment required — Siberian larch is naturally durable. Optional oiling every 3–5 years maintains original colour.
- Siberian larch is 20–40% cheaper than ThermoWood upfront — with minimal maintenance cost over its 20–35 year service life.
Siberian larch is the most widely specified naturally durable timber cladding in the UK — and one of the most cost-effective quality cladding options available. This guide gives you real 2026 prices for Siberian larch cladding across every profile in the range, total project costs for different building types, what affects the final price, and how larch compares to ThermoWood on whole-life cost.
Siberian Larch Cladding Cost Per m² — By Profile (2026)
All prices are for materials only, supplied from UK stock with nationwide delivery. Prices reflect current 2026 market rates — contact us for a live quotation on your specific profile and quantity.
| Profile | Size | Cost per m² (materials) | Notes |
|---|---|---|---|
| Feather edge | 26x146mm | £35–£50 | Most affordable larch profile |
| Shiplap | 20x146mm | £38–£55 | Classic overlapping profile — sheds, garden rooms |
| Shadow gap | 20x146mm | £45–£65 | Most popular contemporary profile |
| Double shadow gap | 24x146mm | £50–£70 | Wider board — bolder, more architectural result |
| Rainscreen | 20x90mm | £45–£65 | Open joint vertical — contemporary facades |
| Tongue & groove | 20x146mm | £40–£58 | Flush face — interior and exterior use |
| Loglap | 24x146mm | £42–£60 | Log cabin profile — garden buildings |
All prices above are for Siberian larch boards only. Your total project cost will be higher once battens, breather membrane, stainless steel fixings, and installation labour are added. See the full project cost section below for complete installed cost figures.
Siberian Larch Cladding — Full Project Costs by Building Type
Full Cost Breakdown — What You're Paying For
| Cost element | Cost per m² | Notes |
|---|---|---|
| Siberian larch boards | £35–£70 | Depends on profile — see table above |
| Battens (counter + fixing) | £5–£8 | Treated softwood or larch battens |
| Breather membrane | £2–£4 | Behind batten framework — essential |
| Stainless steel fixings | £2–£4 | A4 stainless throughout — essential for larch |
| Installation labour | £25–£45 | Feather edge/shiplap lower, shadow gap upper |
| Scaffolding | £1,500–£3,500 total | Per project — required above ground floor |
| Exterior oil (optional) | £3–£6 per m² per application | Every 3–5 years to maintain colour — not required to preserve the timber |
| Fire treatment (if required) | +10–20% on boards | Euroclass B-s1,d0 — via fire treatment service |
What Affects the Cost of Siberian Larch Cladding?
Profile choice — the biggest variable
As with any timber cladding, profile choice drives the biggest variation in cost within the larch range. Feather edge at £35–£50 per m² is 30–40% cheaper than double shadow gap at £50–£70 per m². If budget is a priority, feather edge or shiplap deliver all the natural durability advantages of Siberian larch at significantly lower cost than shadow gap profiles. All profiles have the same 20–35 year service life and the same minimal maintenance requirement — the cost difference is purely in the machining complexity of the profile.
Grade — AB vs BC
Siberian larch is available in different grades that affect both appearance and price. AB grade (also sold as unsorted or choice grade) has fewer knots, tighter grain, and more consistent colour — and commands a premium of approximately £8–£15 per m² over BC grade. BC grade has more knots and greater colour variation — still performs identically but with a more rustic visual character. For contemporary residential projects specify AB grade. For rural, agricultural, or less visible applications BC grade delivers excellent value.
Weathered vs oiled — no cost difference to performance
One of the advantages of Siberian larch over many alternatives is that leaving it completely unfinished to weather naturally to silver-grey costs nothing and performs well — there is no mandatory treatment cost. If you choose to oil the larch every 3–5 years to maintain the original golden colour, budget approximately £3–£6 per m² per application in product cost, plus labour if not self-applying. Over a 30-year service life, a typical oiling programme costs approximately £5–£10 per m² in total — modest compared to the treatment requirements of untreated softwood.
Siberian Larch vs ThermoWood — Cost Comparison
| Factor | Siberian Larch | ThermoWood |
|---|---|---|
| Material cost per m² | £35–£70 | £55–£95 |
| Upfront cost premium | Lower — 20–40% cheaper | Higher |
| Treatment required | None — naturally durable | None — thermally modified |
| Optional maintenance | Oil every 3–5 yrs (optional) | None required ever |
| Maintenance cost (30 yrs) | £5–£10 per m² total (optional) | £0 |
| Whole-life cost per m² | £40–£80 (comparable) | £55–£95 |
| Service life | 20–35 years | 25–40 years |
For projects where upfront cost matters most — Siberian larch offers compelling value at 20–40% below ThermoWood with comparable natural durability. For projects where whole-life cost and absolute minimum maintenance are the priority — ThermoWood's zero maintenance requirement justifies the premium over 20+ years. For most garden rooms and residential extensions, Siberian larch is the strongest value specification. For commercial projects, holiday lets, or anywhere ongoing maintenance is genuinely difficult — ThermoWood is worth the extra cost. For a full performance comparison see our ThermoWood vs Siberian larch guide.
How much does Siberian larch cladding cost per m² in the UK?
Siberian larch cladding costs approximately £35–£70 per m² for materials in 2026. Feather edge costs £35–£50, shiplap £38–£55, shadow gap £45–£65, double shadow gap £50–£70, and rainscreen £45–£65 per m². Add £10–£15 per m² for battens, membrane and fixings, and £25–£45 per m² for installation labour.
How much does it cost to clad a house with Siberian larch?
A typical UK semi-detached house costs approximately £8,000–£18,000 fully installed in Siberian larch. A detached house typically costs £14,000–£28,000 fully installed. These figures include materials, battens, fixings, labour, and scaffolding.
Is Siberian larch cheaper than ThermoWood cladding?
Yes — Siberian larch is 20–40% cheaper than ThermoWood upfront at £35–£70 per m² vs £55–£95 per m². ThermoWood requires zero ongoing maintenance which can offset the premium over 15–20 years. Both are naturally durable without chemical treatment, making whole-life costs broadly comparable.
What is the most affordable Siberian larch cladding profile?
Siberian larch feather edge at £35–£50 per m² is the most affordable profile. Shiplap at £38–£55 per m² is the next most affordable. Both deliver all the natural durability benefits of Siberian larch and can be left unfinished to weather naturally to silver-grey with no ongoing maintenance cost.
How much does Siberian larch cladding cost for a garden room?
A typical 4x3m garden room with approximately 25m² of cladding area costs £875–£1,750 in Siberian larch materials. Add £250–£375 for battens and fixings. Total installed cost approximately £1,750–£3,250 including professional labour.
Get an Accurate Siberian Larch Cladding Quote
Send us your profile choice, dimensions, and postcode and we will calculate the exact material quantity and provide a precise price. We supply Siberian larch cladding from UK stock with nationwide delivery in 7–14 days — FSC and PEFC certified.