Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Principally straight but irregular around knots, displaying significant 'crotch' figure and circular growth ring patterns in this cross-section (cookie) cut. Includes visible pith centers and some wavy figure near the branch junctions.
Color Description
Heartwood is a rich, medium to dark chocolate brown. Sapwood is pale yellowish-gray (mostly absent or trimmed here). Exhibit High luster and will develop a golden-brown patina over time with UV exposure.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Durable; highly resistant to heartwood decay, though susceptible to insect attack (powder post beetles).
Common Uses
High-end furniture, cabinetry, gunstocks, interior trim, flooring, veneer, and specialty turned items like bowls or clocks.
Geographic Origin
Eastern North America
Market Value & Sustainability
Estimated Market Value
$10.00 - $18.00 per board foot for high-quality lumber; live-edge slabs of this size often retail for $75-$150 depending on thickness.
Wood Age Estimate
The piece appears to be roughly 5-10 years post-harvest based on surface oxidation and dry-checking, while the tree itself was approximately 40-50 years old based on ring count.
Sustainability Status
Stable; not listed in CITES Appendices or on the IUCN Red List; widely available and harvested sustainably in North America.
Workability
Excellent workability with both hand and machine tools. Planes and sands very smoothly. Glues and finishes well, though it has a faint distinct 'nutty' odor when worked.
Notable Features
Distinctive mild scent when being cut. Known for its shock resistance and dimensional stability. Dust can be a mild sensitizer for some woodworkers.
Finish Recommendations
Penetrating oils (like Tung or Danish oil) or polyurethane to enhance the deep brown color. Wax can be added for a soft luster.
Identification Confidence
High; the characteristic chocolate brown color transition, growth ring structure, and specific grain texture around the double-pith area are classic indicators of Juglans nigra.