Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Principally straight with cathedral figure visible in the flat-sawn face; occasional irregular patterns and small clusters of pin knots
Color Description
Heartwood is a classic chocolate brown that has faded to a dusty greyish-tan due to oxidation; sapwood appears pale yellow-gray at the edges. Tends to lighten with UV exposure over time.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Durable to Very Durable regarding decay resistance, though susceptible to insect attack.
Common Uses
High-end furniture, cabinetry, veneer, gunstocks, interior trim, 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
Estimated 20-40 years old based on the heavy surface oxidation (patina), dryness of the fibers, and visible rough-milled weathering.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and generally sustainable.
Workability
Excellent workability with both hand and machine tools; glues, stains, and finishes well. Occasional tearout can occur on pieces with irregular grain.
Notable Features
Distinctive mild, spicy scent when worked. Contains juglone, which can be an irritant or toxin to certain animals and plants.
Finish Recommendations
Teak or Danish oil to pop the grain; polyurethane or lacquer for durability. A touch of UV-inhibitor can help maintain the dark brown color.
Identification Confidence
High; the open grain structure, characteristic chocolate-to-grey oxidation, and specific cathedral grain patterns are diagnostic of Juglans nigra.