Chatoyance was measured by the chatometry.com team using the PZC method. The statistics for this specific timber are hereby summarized to provide an evaluation of data robustness:
Number of sources for samples: 14
Number of individual trees analyzed: 14
Number of specimens: 36
Number of measurements: 111
Max PZC read (of all measurements): 19.5
Min PZC read (of all measurements): 7.0
Max PZC average on one log: 18.5
Min PZC average on one log: 8.9
PZC Average of all logs: 13.5

Species: castanea spp.
Family: Fagaceae
Clade: Angiospermae
Description: Deciduous trees with alternate, coarsely serrated leaves, producing catkin flowers and distinctive spiny burs that enclose edible nuts.
Other Local Names: Edelkastanie, Kastanienbaum, Castaño, Châtaignier, Castagno, Sweet chestnut

Reference Colour: Light yellow
Texture: Medium
Grain: Straight
Interlocked Grain: Absent
Notes: Light yellow to yellowish brown.

Diameter: 25÷60cm
Density @12% MC: 640kg/m³
Janka Hardness: 870lbf
Crushing Strength @12%MC: 46MPa
Static Bending Strength @12%MC: 71MPa
Longitudinal Modulus of Elasticity E: 13.3GPa
Volumetric Shrinkage Coefficient: 0.42% per %
Total Tangential Shrinkage TS: 6.9%
Total Radial Shrinkage TS: 4.2%
T/R Anisotropy Ratio: 1.6-
Fibre Saturation Point: 30%
Thermal Conductivity: 0.22W/mk
Lower Heating Value: 18270KJ/Kg
Sapwood Thickness: 1÷2cm
Sapwood Demarcation: Clearly demarcated

Resistance to Decay: Class 2 – durable
Resistance to Dry Wood Borers: Class D – durable (sapwood demarcated, risk limited to sapwood)
Resistance to Termites: Class M – moderately durable
Treatability: Class 4 – non-treatable
Use Class Covered by Natural Durability: Class 3 – not in ground contact, outside Notes. This species is listed in the NF EN 350 standard. Durability is linked to the presence of water soluble tannins. It decreases with the washing of tannins in cases of exposure to Atlas of Tropical Timber Species CHESTNUT
Durability Notes: This species is listed in the NF EN 350 standard. Durability is linked to the presence of water soluble tannins. It decreases with the washing of tannins in cases of exposure to Atlas of Tropical Timber Species CHESTNUT Cross sections of Castanea sativa harsh conditions. According to the European standard NF EN 335 of May 2013, performance length might be modified by conditions in which it is used.

Log Buoyancy: Not applicable
Log Conservation: Good
Drying Rate: Normal to slow
Drying Risk of Distortion: Slight risk
Drying Risk of Case Hardening: No known specific risk
Drying Risk of Checking: High risk

Blunting Effect: Normal
Sawing Tooth: Ordinary or alloy steel
Machining Tool: Ordinary
Suitability for Peeling: Good
Suitability for Slicing: Good
Sawing Machining Notes: Wood easy to split (manufacturing of split shingles).
Assembly Nailing Screwing: Good but pre-boring necessary
Assembly Notes: Chestnut wood splits very easily; precautions must be taken for nailing (small nail diameter, no nails near the ends) and screwing (pre-holes necessary). Nail or screw corrosion if in contact with humidity due to wood acidity.
Additional Notes: Risk of tannin smudges on woods if not well dried or if processed in a non, protected, area or if no product is used for protection or finish
End Uses: Shingles, Fibre or particle boards, Coffins, Flooring, Heavy carpentry, Stakes, Cabinetry (high-end furniture), Sliced veneer, Panelling, Exterior panelling, Exterior joinery, Cooperage, Interior joinery

Source 1: Tropical Timber Atlas, Editions Quae, e-ISBN 978-2-7592-2770-9