Black Walnut — Juglans nigra
High; the characteristic chocolate-brown color, distinct cathedral grain pattern, and contrasting sapwood edge are diagnostic features of American Black Walnut. confidence

Black Walnut

Juglans nigra · Hardwood

Type
Hardwood
Origin
Eastern North America
Hardness
1,010 lbf (Medium)
Durability
Very Durable; highly resistant to heartwood decay, though sapwood is susceptible to insect attack.

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Grain Pattern

Flat-sawn cathedral figure with slightly open, straight to irregular grain. Fine to medium texture with natural movement in the growth rings.

Color & Appearance

Heartwood ranges from light to dark chocolate brown. Sapwood is pale yellowish-gray (visible on the left edge). It has a moderate natural luster and tends to lighten or develop a golden-brown patina with prolonged UV exposure.

Hardness (Janka)

1,010 lbf (Medium)

Durability & Decay Resistance

Very Durable; highly resistant to heartwood decay, though sapwood is susceptible to insect attack.

Value & Sustainability

Estimated Market Value
$10.00 - $18.00 per board foot depending on width and grade.
Wood Age Estimate
Relatively modern stock (likely harvested within the last 5-10 years) based on the clean machine-milled surface and lack of significant oxidation or deep patina.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and generally considered sustainable, though high demand keeps prices elevated.

Common Uses

High-end furniture, cabinetry, veneer, gunstocks, interior paneling, and specialty turned items.

Geographic Origin

Eastern North America

Workability

Excellent workability with both hand and machine tools. Planes well, glues easily, and takes finishes extremely well. It has a mild, pleasant odor when being worked.

Finish Recommendations

Best suited for penetrating oils (like Linseed or Tung oil) to enhance the grain, or clear polyurethane/lacquer to preserve the deep brown tones.

Notable Features

Distinctive chocolate color and sweet, nutty scent when freshly cut. It is relatively lightweight for a hardwood but very dimensionally stable once dried.

Learn more about Black Walnut in the Wood Encyclopedia
Identified July 21, 2026