Sweet Chestnut: Castanea sativa
We supply European sweet chestnut, English sweet chestnut, Welsh sweet chestnut, Irish Sweet Chestnut and Scottish sweet chestnut.
The Sweet Chestnut tree is native throughout the British Isles, Europe and Asia Minor.
Sweet chestnut timber is pale brown – biscuit in colour. The grain varies from straight to spiral. The texture of the timber is coarse . Average weight 540kg/m3; specific gravity . 54.
Sweet chestnut has a medium density with low bending strength, medium crushing strength and very low stiffness and resistance to shock loads. Air dried timber is good for steam bending and chestnut cladding.
Sweet chestnut is difficult to dry. It takes a long time to dry and has a tendency to collapse and honeycomb while retaining patches of moisture. The timber does not respond well to reconditioning treatments. There is small movement in service.
Sweet chestnut is acidic by nature and therefore will corrode metal when in contact with it in damp conditions. Blue-black marks will appear on the timber if in contact with iron compounds in damp conditions. The timber is easily worked with machine and hand tools, it will nail, screw and glue well. It holds stain and polish well.
The heartwood is very durable and incredibly resistant to preservative treatment.
Sweet chestnut is mainly used as a veneer, although it is also often used in turnery and furniture making. Cladding is a fast growing use of Sweet Chestnut timber.