Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Straight grain with occasional wavy figure and burl clusters; includes cathedral patterns in flat-sawn sections and small knots.
Color Description
Heartwood ranges from medium to dark chocolate brown with reddish-orange undertones; sapwood is pale yellow-gray. Develops a warm patina with age and may lighten to golden brown.
Hardness Rating
1010 lbf (Medium)
Durability Rating
Durable to Very Durable regarding decay; moderately resistant to insects but susceptible to powder post beetles.
Common Uses
High-end furniture, cabinetry, veneer, interior paneling, gunstocks, turned objects, and specialty small wood items.
Geographic Origin
Eastern North America
Market Value & Sustainability
Estimated Market Value
$10.00 to $18.00 per board foot depending on width, figure, and local availability.
Wood Age Estimate
The sample appears to be from finished modern cabinetry or furniture, approximately 5-15 years old, based on the even oxidation and finish condition.
Sustainability Status
Not CITES listed; classified as Least Concern by IUCN. Widely available and generally considered sustainable in North America.
Workability
Excellent workability with both hand and machine tools. Glues, stains, and finishes well, though large pores may require filling for a mirror finish.
Notable Features
Distinctive mild, spicy scent when worked. High tannin content can cause blue-black staining if in contact with iron and moisture. Low allergenic risk.
Finish Recommendations
Penetrating oils or shellac best highlight the natural color and grain; clear polyurethane or lacquer provide excellent durability for high-use surfaces.
Identification Confidence
High; the combination of chocolate-reddish color, diffuse-porous grain structure, and specific pin-knot clusters is characteristic of Juglans nigra.