Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Mixed grain with visible cathedral figure and a central knot. Feature includes irregular and slightly wavy patterns with some flat-sawn characteristics displayed in the surface texture.
Color Description
Rich dark chocolate brown heartwood with some lighter tan streaks and greyish undertones. The surface shows significant oxidation (patina) and light-colored surface abrasions and dust highlighting the grain.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Very Durable; highly resistant to heartwood decay and moderately resistant to insect attack.
Common Uses
High-end furniture, cabinetry, interior paneling, gunstocks, veneer, and musical instruments.
Geographic Origin
Eastern North America, primarily the Central and Midwestern United States.
Market Value & Sustainability
Estimated Market Value
$10.00 - $20.00 per board foot depending on width, length, and figure quality.
Wood Age Estimate
Based on the deep oxidation, surface wear, and heavy scoring marks, this sample appears to be from a piece of reclaimed or salvaged furniture approximately 30-50 years old.
Sustainability Status
Least Concern (IUCN), not listed on CITES appendices; generally widely available and sustainable in its native range.
Workability
Excellent workability with both hand and machine tools. Planes and sands well, though the knots and figured areas may require extra care to avoid tearout. Glues and finishes very well.
Notable Features
Distinctive mild, earthy scent when worked. Contains juglone, which can be an allergen for some. Known for its dimensional stability and shock resistance.
Finish Recommendations
Deep penetrating oils (tung or linseed) or clear polyurethane/lacquer to showcase the natural dark tones. Sanding to 220 grit and removing surface dust is necessary to restore the clarity of this specific weathered sample.
Identification Confidence
High. The distinct rich brown color, pore structure visible in the grain, and typical cathedral pattern around the knot are characteristic of Juglans nigra.