Chestnut is of the same family as oak, and likewise its wood contains many tannins. This renders the wood very durable and gives it excellent natural outdoor resistance, and saves the need for other protection treatment. It also corrodes iron slowly, although copper, brass or stainless metals are not affected.
Chestnut timber is decorative. Light brown in color, it is sometimes confused with oak wood. Both woods’ textures are also similar. When in a growing stage, with very little sap wood, a chestnut tree contains more timber of a durable quality than an oak of the same dimensions. Young chestnut wood has proved more durable than oak for woodwork that has to be partly in the ground, such as stakes and fences and similarly great for outdoor tables, cladding and decking.