Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Straight to slightly irregular with visible latewood growth rings and a medium texture. This sample exhibits a flat-sawn cathedral pattern typical of kiln-dried walnut.
Color Description
Medium to dark brown heartwood with hints of grayish-brown. The sapwood (if present but likely trimmed) would be creamy white. It tends to lighten and take on more golden-yellow hues with age and light exposure.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Durable and very resistant to heartwood decay, though susceptible to insect attack (specifically powderpost beetles).
Common Uses
High-end furniture, cabinetry, veneer, interior paneling, gunstocks, small turned objects, and specialty woodworking items.
Geographic Origin
Eastern United States and Southern Ontario, Canada.
Market Value & Sustainability
Estimated Market Value
Approximately $12.00 to $18.00 per board foot depending on figure and width.
Wood Age Estimate
Relatively recent/contemporary (likely processed within the last 5-10 years) based on the lack of deep patina and modern saw marks.
Sustainability Status
IUCN Least Concern; widely available and sustainable in its native range. Not listed on CITES Appendices.
Workability
Excellent workability with both hand and machine tools. Planes and sands smoothly, glues and finishes well, although it can have a mild odor when being worked.
Notable Features
Distinctive mild, sweet odor when processed. Contains juglone, which can be an allergen for some. Known for its exceptional dimensional stability.
Finish Recommendations
Penetrating oils or wiping varnishes (such as Tung oil or Danish oil) are best to enhance natural color; clear polyurethane or shellac are excellent for protection.
Identification Confidence
High; the color, diffuse-porous structure visible in the grain, and characteristic dark brown streaks are diagnostic of North American Black Walnut.