Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Generally straight but frequently wavy or curly. This sample shows flat-sawn cathedral patterns with some subtle swirling and irregular figure near a crotch or knot transition.
Color Description
Heartwood ranges from light brown to dark chocolate brown with darker streaks. It has a dull luster that improves with finishes. Unlike most woods, walnut tends to lighten over time with UV exposure.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Very Durable; highly resistant to heartwood decay, though susceptible to insect attack.
Common Uses
High-end furniture, cabinetry, gunstocks, interior paneling, veneer, turned items, and musical instruments.
Geographic Origin
Eastern North America
Market Value & Sustainability
Estimated Market Value
$12.00 - $20.00 per board foot depending on width and figure
Wood Age Estimate
The wood is likely from a mature tree (50-80 years old). The finished surface shows a rich patina suggesting the furniture piece itself is 10-30 years old.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and generally managed sustainably.
Workability
Excellent workability with both hand and machine tools. It planes, glues, and finishes exceptionally well, though it can occasionally have tearout in figured areas.
Notable Features
Distinctive mild, sweet odor when worked. Contains juglone, which can be an irritant or toxic to some plants and animals.
Finish Recommendations
Responds well to all finishes. High-quality oils (Tung/Linseed) or clear lacquer are recommended to highlight the natural depth and chatoyance.
Identification Confidence
High; the characteristic pore structure (semi-ring porous), chocolate-brown color variations, and typical cathedral grain are diagnostic of Juglans nigra.