Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Usually straight, but can be irregular. Shows a cathedral pattern in the center panel, which is typical for flat-sawn stock.
Color Description
Heartwood ranges from light to dark chocolate brown. Sapwood is yellowish-gray to nearly white. The sample shows a dark, likely stained, walnut finish with low luster due to age/wear.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Very Durable; rated as very resistant to heartwood decay, though susceptible to insect attack.
Common Uses
High-end furniture, cabinetry, interior trim, flooring, gunstocks, veneer, and musical instruments.
Geographic Origin
Eastern North America
Market Value & Sustainability
Estimated Market Value
$10.00 - $18.00 per board foot depending on thickness and grade.
Wood Age Estimate
30-50 years based on the style of the panel profile, surface wear, and the nature of the finish oxidation.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and generally sustainable.
Workability
Excellent workability with both hand and machine tools. Planes and glues well; holds screws and nails securely. Produces a distinct, pleasant odor.
Notable Features
Distinctive chocolate color; emits a faint, spicy scent when worked. Known for excellent dimensional stability and shock resistance.
Finish Recommendations
Oil-based finishes (tung oil or linseed) enhance the natural color. Polyurethane or lacquer is recommended for high-wear items like doors.
Identification Confidence
Medium-High. The visible grain structure and the way the wood accepts dark stain is highly characteristic of North American Walnut, though heavy finishing can mask some features.