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Color/Appearance: Heartwood can range from a lighter pale brown to a dark chocolate brown with darker brown streaks. Color can sometimes have a grey, purple, or reddish cast. Sapwood is pale yellow-gray to nearly white. Figured grain patterns such as curl, crotch, and burl are also seen.

Grain/Texture: Grain is usually straight, but can be irregular. Has a medium texture and moderate natural luster.

Black Walnut

  • Common Name(s): Black Walnut

    Scientific Name: Juglans nigra

    Distribution: Eastern United States

    Tree Size: 100-120 ft (30-37 m) tall, 2-3 ft (.6-1 m) trunk diameter

    Average Dried Weight: 38 lbs/ft3 (610 kg/m3)

    Specific Gravity (Basic, 12% MC): .51, .61

    Janka Hardness: 1,010 lbf (4,490 N)

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