Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Predominantly straight with visible cathedral grain patterns; some irregular and wavy figure present. Open-pored texture with occasional burl-like swirls.
Color Description
Heartwood ranges from light to deep chocolate brown with some purplish undertones and dark streaks. Sapwood is typically pale yellowish-gray. It tends to lighten/yellow with age and UV exposure.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Very Durable against heartwood decay, though susceptible to insect attack (specifically beetles).
Common Uses
High-end furniture, cabinetry, veneer, gunstocks, interior paneling, musical instruments, and specialty wooden items.
Geographic Origin
Eastern North America
Market Value & Sustainability
Estimated Market Value
Ranges from $12.00 to $20.00 per board foot depending on width, figure, and local availability.
Wood Age Estimate
30-50 years based on heavy oxidation, patina buildup, and wear/scratch patterns consistent with mid-20th century furniture.
Sustainability Status
Not listed on CITES or IUCN Red List; widely available and generally considered sustainable in its native range.
Workability
Excellent with both hand and machine tools. Responds well to steaming for bending and glues/finishes beautifully. Sharp blades are required to avoid minor tearout on wavy portions.
Notable Features
Distinctive mild, earthy scent when worked. Contains juglone, which can be an allergen for some. Known for high dimensional stability and shock resistance.
Finish Recommendations
Penetrating oils or tung oil to enhance grain depth; satin lacquer or polyurethane for protection. Avoid high-gloss finishes which can look plastic on its open-pore structure.
Identification Confidence
High. The chocolate-brown hue, large open-pored structure, and characteristic cathedral arches visible in the grain are diagnostic of Black Walnut.