Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Irregular and figured with swirling cathedral patterns, likely from a crotch or root section of the tree. The sample shows localized cluster figure and heavy wild grain typical of branch junctions.
Color Description
Rich brownish-grey heartwood with natural dark chocolate streaks and creamy sapwood visible at the top edge. The wood shows moderate luster and will darken/warm to a deeper brown with age and light exposure.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Highly durable regarding decay resistance, though susceptible to insect attack. Strong resistance to rot when used in interior or protected exterior settings.
Common Uses
High-end furniture, cabinetry, gunstocks, veneers, interior trim, and specialty woodturning projects.
Geographic Origin
Eastern North America (United States and Canada)
Market Value & Sustainability
Estimated Market Value
$10.00 to $20.00 per board foot depending on figure intensity and local availability.
Wood Age Estimate
Freshly cut or recently milled (less than 1-2 years), indicated by the raw, rough-sawn surface and lack of significant oxidation or finish patina.
Sustainability Status
Generally sustainable and widely available; not listed in CITES Appendices or on the IUCN Red List of Threatened Species. FSC-certified sources are common.
Workability
Generally easy to work with both hand and machine tools, though the irregular grain in this specific sample poses a risk of tearout during planing. Gluing, staining, and finishing properties are excellent.
Notable Features
Distinctive faint, nutty scent when cut. Contains juglone (a mild toxin) which can cause skin irritation in sensitive individuals. Highly prized for its unique dark heartwood.
Finish Recommendations
Oil-based finishes (tung oil or linseed oil) or polyurethane are recommended to highlight the figure. A clear lacquer or shellac would also work well to preserve the natural color contrast.
Identification Confidence
Medium-High; the characteristic chocolate-brown color variations, creamy sapwood contrast, and coarse but even texture are hallmark indicators of Juglans nigra, particularly sections involving burls or limb junctions.