Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Usually straight, but can be irregular. Seen here with a subtle wavy figure and some cathedral-like grain on a semi-flat-sawn face.
Color Description
Heartwood ranges from a lighter pale brown to a dark chocolate brown with darker brown streaks. Grayish-purple cast is common. Sapwood is pale yellow-gray to nearly white. Darkens slightly and develops a richer patina with age.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Very Durable. Rated as being very resistant to heartwood decay, though susceptible to insect attack.
Common Uses
High-end furniture, cabinetry, veneer, flooring, gunstocks, interior trim, and turned objects.
Geographic Origin
Eastern United States and Southern Canada
Market Value & Sustainability
Estimated Market Value
$10.00 – $18.00 per board foot depending on width, thickness, and figure.
Wood Age Estimate
Modern lumber. Likely 1-5 years post-processing based on lack of deep oxidation or heavy surface wear.
Sustainability Status
Secure (Least Concern). Not listed in CITES appendices or the IUCN Red List; widely available through FSC certified sources.
Workability
Excellent. Easy to work with both hand and machine tools. Planes and glues well. Sharp cutters are needed to avoid tearout on figured sections. Holds nails/screws and stains/polishes to a high finish.
Notable Features
Distinctive mild spicy scent when being worked. Known for its workability and dimensional stability. Contains juglone which can be an allergen for some individuals.
Finish Recommendations
Penetrating oils (Tung or Linseed) or Danish oil best highlight its natural color and depth. Polyurethane or lacquer are suitable for higher protection. Shellac works well as a sealer.
Identification Confidence
High. The dark chocolate hue, grain texture, and pore structure are highly characteristic of North American Black Walnut.