Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Generally straight but can be irregular; features prominent growth rings and semi-ring-porous texture. Occasional crotch figure or swirl near branch junctions as seen in the small log base.
Color Description
Heartwood is typically a creamy to dark chocolate brown, sometimes with a purplish or reddish cast. Sapwood is distinct, being much lighter pale yellow to nearly white. Darkens slightly and mellows with age and UV exposure.
Hardness Rating
1,010 lbf (Medium Hardness)
Durability Rating
Durable; very resistant to heartwood decay, though sapwood is susceptible to insect attack (powder post beetles).
Common Uses
High-end furniture, cabinetry, gunstocks, interior paneling, veneer, turned items, and musical instruments.
Geographic Origin
Eastern North America
Market Value & Sustainability
Estimated Market Value
$8.00 - $15.00 per board foot depending on figure and width.
Wood Age Estimate
Freshly cut (within 1-6 months); the wood shows no significant oxidation or grey weathering, and the bark is fully intact.
Sustainability Status
Abundant; Not CITES listed and categorized as Least Concern by IUCN. Widely available with FSC certification.
Workability
Excellent; works easily with both hand and machine tools. Glues, stains, and finishes very well. Can be prone to minor tearout if the grain is irregular near knots.
Notable Features
Distinctive mild spicy/nutty scent when worked. Contains juglone, which can be an allergen to some and is toxic to certain plants.
Finish Recommendations
Oil-based finishes (tung oil or linseed oil) enhance the deep colors and chatoyance. Polyurethane or lacquer for high-wear surfaces.
Identification Confidence
High; the combination of deep chocolate heartwood, distinct white sapwood, rough bark texture, and specific vessel arrangement on the end grain is characteristic of Juglans nigra.