Black Walnut — Juglans nigra
Medium, based on the characteristic brownish coloration, visible open-pore structure, and grain patterns typical of walnut species. confidence

Black Walnut

Juglans nigra · Hardwood

Type
Hardwood
Origin
Eastern North America
Hardness
1010 lbf (Medium)
Durability
Durable, with good resistance to decay and moderate resistance to insect attack.

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Grain Pattern

Straight to irregular grain with a moderate natural luster and a flat-sawn cathedral pattern visible around the knot.

Color & Appearance

Heartwood ranges from a lighter pale brown to a darker chocolate brown with darker brown streaks. Sapwood is nearly white to yellowish-gray, showing weathering and oxidation due to age and exposure.

Hardness (Janka)

1010 lbf (Medium)

Durability & Decay Resistance

Durable, with good resistance to decay and moderate resistance to insect attack.

Value & Sustainability

Estimated Market Value
8.00 to 15.00 USD per board foot depending on grade and width.
Wood Age Estimate
Estimated to be several decades old based on surface oxidation, weathering, and patina.
Sustainability Status
Not listed on CITES appendices or IUCN Red List of Threatened Species; widely available from managed domestic forests.

Common Uses

Fine furniture, cabinetry, architectural millwork, veneer, gunstocks, and turning.

Geographic Origin

Eastern North America

Workability

Generally excellent workability with both hand and machine tools. Glues, stains, and finishes exceptionally well, though it can occasionally tear out on figured sections during planing.

Finish Recommendations

Takes oils, varnishes, lacquers, and polyurethanes very well; hand-rubbed oil finishes particularly enhance the deep grain and color.

Notable Features

Stable dimensionally, moderate shock resistance, and characteristic rich color that ages gracefully.

Learn more about Black Walnut in the Wood Encyclopedia
Identified August 29, 2026