Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Generally straight grain with some slight waving; flat-sawn displaying subtle cathedral patterns. Textures are medium with a naturally open pore structure.
Color Description
Heartwood ranges from a lighter pale brown to a dark chocolate brown with darker streaks. This sample shows the lighter, more muted 'air-dried' or steamed appearance. Sapwood is yellowish-white. It tends to lighten/yellow 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, veneer, gunstocks, interior trim, flooring, and turned objects.
Geographic Origin
Eastern North America
Market Value & Sustainability
Estimated Market Value
$10.00 - $15.00 per board foot depending on width and grade
Wood Age Estimate
Relatively recent/modern stock (under 5 years) based on the lack of deep oxidation and the presence of fresh surface milling marks.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and generally considered sustainable in its native range.
Workability
Excellent workability with both hand and machine tools. Planes well, glues easily, and takes stain/finishes exceptionally well, though it has a distinct scent when cut.
Notable Features
Distinctive mild, spicy odor when worked. Contains juglone, which can be an irritant. Known for superior dimensional stability once seasoned.
Finish Recommendations
Varnish, lacquer, or oil-based finishes (like Tung oil or Linseed oil) are recommended to enhance the deep brown tones and natural luster.
Identification Confidence
High; the combination of color variation, diffuse-porous grain structure, and characteristic brown hues is diagnostic of Juglans nigra.