Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Generally straight grain with faint cathedral patterns visible in the flat-sawn sections; features some subtle curl and irregular transitions between boards in the glued-up panel.
Color Description
Rich dark chocolate brown heartwood with some lighter tan streaks; exhibits a medium luster and warm golden undertones under the finish. It typically lightens and yellows slightly over time with UV exposure.
Hardness Rating
1,010 lbf (Medium Hardness)
Durability Rating
Very Durable; highly resistant to heartwood decay and rot, though susceptible to insect attack (sapwood).
Common Uses
High-end furniture, cabinetry, interior trim, flooring, gunstocks, veneer, and turned objects.
Geographic Origin
Eastern United States and Central North America.
Market Value & Sustainability
Estimated Market Value
$10.00 to $18.00 per board foot depending on width, grade, and local availability.
Wood Age Estimate
The sample suggests a finished furniture piece approximately 5 to 15 years old, based on the oxidation level and the modern surface finish.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and generally considered sustainable in its native range.
Workability
Excellent workability; easy to machine and plane, though figured areas may cause some grain tearout. Glues, stains, and finishes exceptionally well.
Notable Features
Distinctive mild, spicy scent when worked. High tannin content can react with iron to cause dark staining. Renowned for its unique deep pigment that requires no staining.
Finish Recommendations
Oil-based polyurethane or lacquer to enhance the natural depth and chatoyance; clear wax or rubbing oils (tung/linseed) are also popular for a more natural feel.
Identification Confidence
High; the characteristic deep brown hue, pore structure, and specific grain movement are diagnostic for Black Walnut, especially within a butcher-block style furniture panel.