Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Mainly straight grain with some cathedral figure visible in the flat-sawn sections; semi-porous texture with medium-sized pores typical of the Juglans genus.
Color Description
Heartwood ranges from light greyish brown to dark chocolate brown. Sapwood is yellowish-white. The sample shows a rich matte luster with subtle chatoyance; it will likely lighten and yellow slightly over time with UV exposure.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Very Durable; heartwood is highly resistant to decay and rot, though sapwood is susceptible to insect attack.
Common Uses
High-end furniture, cabinetry, gunstocks, interior paneling, veneer, flooring, and specialty wooden objects.
Geographic Origin
Eastern United States and Eastern Canada.
Market Value & Sustainability
Estimated Market Value
$10.00 - $18.00 per board foot depending on thickness, width, and geographic location.
Wood Age Estimate
Modern sample likely processed within the last 5-10 years; shows no significant oxidation or historical patina associated with antique timber.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and generally considered sustainable in its native growth range.
Workability
Excellent workability with both hand and machine tools. Planes and sands easily, though tearout can occur around figured areas. It glues, stains, and finishes exceptionally well.
Notable Features
Features a faint, distinct mildly spicy scent when worked. Contains moderate levels of tannins. Low shrinkage and very stable once seasoned. Large pores are visible as fine dark lines.
Finish Recommendations
Oil-based finishes (tung oil or linseed oil) enhance the deep color and grain. Polyurethane, lacquer, or shellac are also excellent choices for a more durable protective film.
Identification Confidence
High; the distinctive chocolate-brown color, semi-porous grain structure, and visible cathedral figure are hallmark characteristics of North American Black Walnut.