Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Generally straight and open-grained with some irregularities; shows moderate cathedral patterns in flat-sawn sections and faint curl/figure in specific highlights.
Color Description
Heartwood ranges from light to dark chocolate brown with occasional grayish, reddish, or purplish streaks; sapwood is pale yellow-gray to nearly white. Ages to a warmer, more golden-brown over time with UV exposure.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Very Durable; highly resistant to heartwood decay, though sapwood is susceptible to insect attack.
Common Uses
High-end furniture, cabinetry, gunstocks, interior paneling, veneer, flooring, turned objects, 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 (FAS).
Wood Age Estimate
The visible oxidation and finish wear suggest the wood is approximately 20-40 years old, likely part of a vintage mid-century style piece.
Sustainability Status
Not listed on CITES Appendices or the IUCN Red List; widely available and generally considered sustainable in North America.
Workability
Excellent workability with both hand and machine tools; planes smoothly, glues well, and takes stains and finishes exceptionally well. Occasional tearout can occur on figured pieces.
Notable Features
Distinctive mild, spicy odor when being worked; known for excellent dimensional stability and shock resistance.
Finish Recommendations
Oil-based finishes (tung oil or linseed oil) enhance its natural depth; wipe-on poly or solvent-based lacquers provide excellent protection while maintaining clarity.
Identification Confidence
High; identification is based on the characteristic deep chocolate brown hue, semi-porous grain structure, and the specific way the wood fibers accept the existing finish visible in the macro shot.