Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Straight to irregular with visible open pores; flat-sawn displaying typical cathedral figures under old finish
Color Description
Medium to dark chocolate brown heartwood; sapwood is typically creamy white. The sample shows significant oxidation and darkening under an aged, peeling finish.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Durable to Very Durable regarding heartwood decay; susceptible to insect attack (powder post beetles)
Common Uses
High-end furniture, cabinetry, gunstocks, interior trim, veneer, and flooring
Geographic Origin
Eastern North America
Market Value & Sustainability
Estimated Market Value
$10.00 - $15.00 per board foot (4/4 Select & Better)
Wood Age Estimate
Estimated 40-70 years based on the heavy oxidation of the wood fibers and the brittle, flaking nature of the vintage topcoat
Sustainability Status
Not listed in CITES Appendices; categorized as Least Concern by the IUCN Red List; widely available with FSC certification
Workability
Excellent workability with both hand and machine tools; glues, stains, and finishes very well, though open pores may require filling for a glass-like finish
Notable Features
Distinctive mild spicy scent when worked; heartwood contains high tannin content; known for its shock resistance and dimensional stability
Finish Recommendations
Oil-based finishes (tung or linseed) enhance natural color; clear polyurethane or lacquer for durability; ensure surface is stripped of old lead-based paint/varnish safely
Identification Confidence
Medium-High; the deep chocolate brown color revealed beneath the peeling finish and the characteristic pore structure are highly indicative of American Black Walnut.