Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Usually straight, but can be irregular or wavy. This end grain cross-section displays distinct semi-ring-porous structure and visible growth rings with subtle cathedral figure emerging from the cut angle.
Color Description
Heartwood ranges from a golden brown to a deep chocolate brown with darker streaks. Sapwood is a creamy off-white. This sample shows typical darkening/oxidation on the surface; it usually lightens slightly over time with UV exposure.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Durable to Very Durable; highly resistant to heartwood decay, though sapwood is susceptible to insect attack.
Common Uses
High-end furniture, cabinetry, gunstocks, interior paneling, veneer, turned objects, and musical instruments.
Geographic Origin
Eastern North America (United States and Canada)
Market Value & Sustainability
Estimated Market Value
$10.00 – $20.00 per board foot depending on width and grade
Wood Age Estimate
The log itself appears to be from a tree approximately 40-60 years old based on ring density; the cut surface shows moderate oxidation suggesting it was felled within the last 1-2 years.
Sustainability Status
Not listed in the CITES Appendices or on the IUCN Red List; widely available and generally considered sustainable with FSC options.
Workability
Excellent workability with hand and machine tools. Planes and glues well. It holds nails and screws well, though pre-drilling is recommended near edges to prevent splitting.
Notable Features
Distinctive mild, spicy scent when being worked. Known for its high shock resistance and dimensional stability once seasoned.
Finish Recommendations
Responds exceptionally well to clear penetrating oils (Tung or Linseed) which enhance the depth of color. Polyurethane or lacquer are common for high-wear surfaces.
Identification Confidence
High; the chocolate-brown heartwood color transition, thick bark texture, and pore distribution in the end grain are classic indicators of Juglans nigra.