Black Walnut — Juglans nigra
High. The characteristic rich chocolate-brown heartwood, distinct creamy-white sapwood margin, and texture are classic identifiers for Black Walnut. confidence

Black Walnut

Juglans nigra · Hardwood

Type
Hardwood
Origin
Eastern North America
Hardness
1,010 lbf (Medium)
Durability
Durable. Rated as very resistant to heartwood decay, though susceptible to insect attack.

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Grain Pattern

Straight to slightly irregular grain with a medium texture, flat-sawn appearance on the face showing distinct growth rings.

Color & Appearance

Heartwood ranges from a lighter pale brown to a dark chocolate brown with darker brown streaks; sapwood is clearly demarcated, creamy white to yellowish-gray. Luster is moderate, and the heartwood tends to lighten slightly to a warm golden-brown patina over time with UV exposure.

Hardness (Janka)

1,010 lbf (Medium)

Durability & Decay Resistance

Durable. Rated as very resistant to heartwood decay, though susceptible to insect attack.

Value & Sustainability

Estimated Market Value
$6.00 to $15.00+ per board foot depending on grade, width, and figure.
Wood Age Estimate
Estimated to be moderately aged (several decades old based on surface oxidation and patina).
Sustainability Status
Generally sustainable, widely available through domestic timber harvesting, not listed on CITES appendices or IUCN red list.

Common Uses

Fine furniture, cabinetry, gunstocks, interior paneling, veneer, turned items, and specialty woodcrafts.

Geographic Origin

Eastern North America

Workability

Excellent workability with both hand and machine tools. Glues, stains, and finishes very well, though can occasionally tear out during planing if grain is irregular.

Finish Recommendations

Accepts a wide variety of finishes including oils, polyurethane, lacquer, and shellac. Hand-rubbed oil finishes particularly enhance the deep chatoyance of the grain.

Notable Features

Possesses a rich, dark brown color naturally without needing heavy staining. Contains moderate natural oils and moderate dimensional stability.

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