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Southern & Western Europe

Sweet Chestnut

Castanea sativa

Sweet Chestnut
Durability
56EN 350
25 yrs modelled mean service life
Durability
Stability
75WI-INTERNAL
Stability rating: High
Stability
Fire performance
88EN 13501-1 / EN 1995-1-2
β₀ = 0.5 mm/min · D-s2,d0
Fire performance
Carbon stored
90EN 16449
903 kg CO₂e/m³ stored
Carbon stored

Natural durability

75

Maintenance Profile

Use classes untreated

UC

Typical Use Classes

Density
560 kg/m³
Bending strength
88 N/mm²
Stability
High
Carbon stored
0.94 t CO₂e/m³
Durability
DC 2 (durable)
Service life
35–60 yrs façade
Fire performance
Euroclass D-s2,d0 · charring 0.50 mm/min
Cost index
78

The figures above are WoodIntel editorial estimates for orientation only. Where a standards-referenced record exists for this species, it is shown below with full provenance.

Standards-referenced record

Sweet Chestnut, as the standards define it

Each value below carries its derivation and the standard it comes from. Tap a marker to open the provenance.

Density at 12 % MC
560kg/m³
Natural durability
DC 2
Use classes untreated
UC 1–3 untreated
Reaction to fire
D-s2,d0
Design charring rate
0.5mm/min
Biogenic carbon stored
903kg CO₂e/m³
ProvenancemeaMeasuredpubPublishedderDerivedestModel estimate

Colour ageing

Warm honey → silver-grey with tannin streaks in 2–3 years

Typical applications

  • Façade
  • Cladding
  • Shingles
  • Fencing

AI recommendation

Oak-level durability at lower density and cost, with the same tannin problem: stainless fixings and a drip detail are mandatory. Watch for ring shake in wide boards.