European Oak has a light brown heartwood, white to creamy white sapwood, and open grain with rays, occasional swirls, and burls. Oak is very strong and durable, and Tannic acid in the wood protects it from insects and fungal attacks.
American Walnut is known for the pronounced color difference between its sapwood and heartwood. While heartwood ranges from a deep, rich dark brown to a purplish black, sapwood is nearly white to tan. American walnut is a strong wood with excellent shock resistance properties.
