Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Straight grain with visible open pores; flat-sawn appearance showing some slight cathedral peaks in the lower regions. Moderate texture.
Color Description
Medium to dark brown heartwood with a chocolate-like tone and occasional purplish or reddish streaks. Surface shows moderate luster and typical darkening or lightening toward a more golden-brown hue with long-term UV exposure.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Very Durable; highly resistant to heartwood decay, though susceptible to insect attack (specifically powderpost beetles).
Common Uses
High-end furniture, cabinetry, veneer, gunstocks, interior trim, flooring, and small turned objects.
Geographic Origin
Eastern North America
Market Value & Sustainability
Estimated Market Value
approx. $12.00 to $20.00 per board foot depending on width and grade.
Wood Age Estimate
The visible oxidation and patina, combined with minor surface wear and water spotting, suggest this material is 20 to 40 years old.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List of Threatened Species; widely available and generally managed sustainably through FSC certification.
Workability
Excellent workability with both hand and machine tools. It planes smoothly, glues well, and holds nails and screws effectively. Pores may require filling for a glass-smooth finish.
Notable Features
Distinctive faint, spicy scent when worked. High tannin content. Generally non-toxic but the dust can be a mild sensitizer for some users.
Finish Recommendations
Oil-based finishes (linseed or tung oil) best enhance the natural color. Polyurethane or lacquer are recommended for high-wear surfaces like this tabletop/panel.
Identification Confidence
High; the deep chocolate brown color, characteristic open-pore structure of the Juglans genus, and grain spacing are classic indicators of North American Black Walnut.