Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Generally straight with some slight irregularity; visible diffuse-porous vessels and a flat-sawn cathedral arc apparent in the wider grain sections.
Color Description
Heartwood ranges from a lighter pale brown to a dark chocolate brown with darker brown streaks. Sapwood is pale yellow-gray to white. Color tends to lighten over time with UV exposure.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Durable to Very Durable regarding decay resistance, though susceptible to insect attack.
Common Uses
High-end furniture, cabinetry, gunstocks, interior trim, flooring, veneer, and turned objects.
Geographic Origin
Central and Eastern United States.
Market Value & Sustainability
Estimated Market Value
Approximately $12.00 - $20.00 per board foot depending on width and grade.
Wood Age Estimate
30-50 years based on the patina, oxidation of the finish, and the style of the tag and assembly marks.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List of Threatened Species; widely available and sustainable in the US.
Workability
Excellent workability with both hand and machine tools. Planes and glues well; holds stains and finishes very well, though it is usually left natural to show grain.
Notable Features
Distinctive mild, spicy scent when worked. High tannin content. Known for dimensional stability and shock resistance.
Finish Recommendations
Oil-based finishes (tung oil or linseed oil) enhance the deep color; polyurethane or lacquer provide durability for furniture surfaces.
Identification Confidence
Medium-High. The dark chocolate hues, pore structure visible in the close-up, and specific wear patterns are classic indicators of Walnut.