Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Mainly straight with some wavy figure; flat-sawn displaying characteristic cathedral patterns and dark streaks. Pores are medium-sized and semi-ring-porous, visible as dark lines.
Color Description
Rich chocolate brown heartwood with some darker streaks. Sapwood is typically pale yellow-gray (though likely stained to match in this lumber). It is known to develop a warm honey-colored patina and lighten slightly with long-term 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 trim, flooring, veneer, and musical instruments.
Geographic Origin
Eastern United States and Ontario, Canada.
Market Value & Sustainability
Estimated Market Value
$12.00 to $18.00 per board foot depending on width and grade.
Wood Age Estimate
The surface shows established oxidation and fine surface scratches consistent with a piece of furniture that is 10 to 30 years old.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; generally considered a sustainable domestic hardwood with FSC certification widely available.
Workability
Excellent workability with both hand and machine tools. It planes smoothly, glues and finishes well, and holds screws/nails securely. Its dust can be a mild irritant.
Notable Features
Distinctive chocolate-like scent when freshly cut. High tannin content. It is unique among North American hardwoods for its naturally dark color.
Finish Recommendations
Responds excellently to oil-based finishes (tung or linseed) which enhance grain depth. Polyurethane or lacquer is recommended for tabletop durability.
Identification Confidence
High. The characteristic dark pore structure, 'cathedral' grain figure, and specific chocolate-brown hue are classic diagnostic features of Juglans nigra.