Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Straight to slightly irregular with occasional cathedral figure and wavy curls visible in the tangential section.
Color Description
Heartwood ranges from light to dark chocolate brown. This sample shows a muted, grayish-brown oxidation characteristic of air-dried or aged walnut. Sapwood is typically pale yellowish-gray.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Durable; highly resistant to heartwood decay, though susceptible to insect attack (beetles).
Common Uses
High-end furniture, cabinetry, gunstocks, interior trim, flooring, veneer, and musical instruments.
Geographic Origin
Eastern North America
Market Value & Sustainability
Estimated Market Value
$10.00 - $18.00 per board foot depending on grade and width.
Wood Age Estimate
The sample appears to be modern dimensional lumber (3-10 years since harvest) based on the surface sanding and level of oxidation.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and generally sustainable in North America.
Workability
Excellent workability with both hand and machine tools. Planes and sands easily, though figure can cause occasional tearout. Glues and finishes very well.
Notable Features
Distinctive mild, spicy odor when worked. Known for its excellent dimensional stability and shock resistance.
Finish Recommendations
Penetrating oils (Tung or Danish) or clear lacquers to highlight the deep grain. Avoid heavy stains that mask the natural character.
Identification Confidence
High. The color palette, semi-ring-porous grain structure, and subtle chatoyance are hallmark characteristics of Juglans nigra.