Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Typically straight but can be irregular; features cathedral patterns when flat-sawn, with moderate, semi-open texture and occasional wavy figure.
Color Description
Heartwood ranges from light to dark chocolate brown. Sapwood is creamy white (often steamed to match heartwood). Develops a rich patina and may lighten slightly over decades.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Very Durable; heartwood is highly resistant to decay and rot, though susceptible to insect attack.
Common Uses
High-end furniture, cabinetry, interior paneling, gunstocks, veneer, flooring, and musical instruments.
Geographic Origin
Eastern North America (United States and Canada).
Market Value & Sustainability
Estimated Market Value
$12.00 to $20.00 per board foot depending on width, grade, and local availability.
Wood Age Estimate
Approximately 30-50 years based on the oxidation of the finish, surface wear, and deeper amber patina visible through the clear coat.
Sustainability Status
Not listed on CITES Appendices or the IUCN Red List of Threatened Species; generally sustainable with FSC availability.
Workability
Excellent workability with both hand and machine tools; glues, stains, and finishes very well, though can be prone to chip-out in irregular grain.
Notable Features
Distinctive mild, spicy scent when worked. Contains juglone which can be a mild allergen. Highly valued for its dimensional stability.
Finish Recommendations
Responds excellently to oil-based finishes (tung or linseed), polyurethane, or shellac to enhance the depth of the grain.
Identification Confidence
High; the color tone, pore structure, and characteristic grain swirl shown in the image are classic diagnostic features of North American Walnut.