Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Generally straight but and showing some wavy figure on the face grain; visible semi-ring-porous structure on the end grain with fine curly figure emerging.
Color Description
Heartwood is medium to dark brown with a chocolate-like hue. Sapwood is typically pale yellow-gray to nearly white. This sample shows a warm, aged patina and likely darkens over time but can lighten with significant 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
Native to Eastern North America (United States and Canada).
Market Value & Sustainability
Estimated Market Value
Approximately $10.00 to $15.00 per board foot depending on figure and width.
Wood Age Estimate
Based on the rough-cut texture and oxidation, the sample appears to be freshly cut or reclaimed section from a log roughly 40-60 years old.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List of Threatened Species; widely available and generally managed sustainably in North America.
Workability
Excellent workability with both hand and machine tools. It planes smoothly, glues well, and takes a high polish. Prone to split if nailed without pilot holes.
Notable Features
Distinctive mild, spicy scent when worked. Contains moderate tannins. Known for its excellent dimensional stability and strength-to-weight ratio.
Finish Recommendations
Oil-based finishes (tung oil or linseed oil) enhance the deep grain; polyurethane or lacquer provide durability for high-wear surfaces.
Identification Confidence
High; the characteristic chocolate color, semi-ring-porous end grain, and commonality in domestic woodworking shops strongly indicate Black Walnut.