Black Walnut
Juglans nigra · Hardwood
- Type
- Hardwood
- Origin
- Eastern North America
- Hardness
- 1,010 lbf (Medium)
- Durability
- Durable (good decay resistance, though susceptible to insect attack in sapwood)
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Grain Pattern
Circular growth rings visible on cross-section with a generally straight grain when viewed longitudinally; distinct ring-porous or semi-ring-porous pattern.
Color & Appearance
Heartwood is a rich dark brown to purplish-brown, while the narrow sapwood is pale yellowish-grey to white. Colors tend to lighten slightly and warm up into a golden-brown patina over time with UV exposure.
Hardness (Janka)
1,010 lbf (Medium)
Durability & Decay Resistance
Durable (good decay resistance, though susceptible to insect attack in sapwood)
Value & Sustainability
- Estimated Market Value
- 8.00 to 15.00 USD per board foot depending on grade and width
- Wood Age Estimate
- Estimated 25 to 30 years based on visible growth rings on the cross-section slice.
- Sustainability Status
- Not listed on CITES appendices or the IUCN Red List; widely available and sustainably managed in North America.
Common Uses
Fine furniture, cabinetry, gunstocks, interior paneling, veneer, and turned objects.
Geographic Origin
Eastern North America
Workability
Excellent workability with both hand and machine tools. Glues, stains, and finishes exceptionally well, though care must be taken with planing to avoid tearout on irregular grain.
Finish Recommendations
Takes oil finishes, Danish oil, lacquer, and polyurethane very well, enhancing the deep chocolate tones without requiring extensive preparation.
Notable Features
Contains the chemical juglone which can be toxic to certain plants; possesses a moderate natural luster and distinct, rich coloration highly prized in woodworking.
