Most likely Black Walnut; alternatives include Claro walnut or dark-stained mahogany. — Juglans nigra

Most likely Black Walnut; alternatives include Claro walnut or dark-stained mahogany.

Juglans nigra · Hardwood

AI-generated identification · may be incorrect
Type
Hardwood
Origin
Eastern and central North America, especially the United States and southern Canada.
Hardness
1,010 lbf Janka — Medium.
Durability
Moderately durable; heartwood has fair resistance to decay and insects, while sapwood is substantially less resistant.

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Grain Pattern

Mostly straight, moderately coarse grain with subtle cathedral-like figure and occasional darker streaking; appears flat-sawn.

Color & Appearance

Medium brown to chocolate-brown heartwood with lighter brown sapwood and subdued luster. Walnut commonly lightens slightly and develops a warmer golden tone with age and light.

Hardness (Janka)

1,010 lbf Janka — Medium.

Durability & Decay Resistance

Moderately durable; heartwood has fair resistance to decay and insects, while sapwood is substantially less resistant.

Value & Age

Estimated Market ValueNot an official valuation

Approximately $8–$18 per board foot for clear kiln-dried walnut; figured or premium stock may cost considerably more.

AI estimate for general guidance only — not a professional appraisal. Actual value depends on grade, dimensions, condition, and local market demand.

Wood Age Estimate
The sample appears recently machined or lightly weathered; visible surface patina is insufficient to estimate tree or object age.

Common Uses

Furniture, cabinetry, flooring, gunstocks, architectural millwork, veneer, turning, and carving.

Geographic Origin

Eastern and central North America, especially the United States and southern Canada.

Workability

Generally machines, sands, glues, and finishes well, though tear-out can occur with changing grain. Pre-drilling is advisable for fasteners.

Finish Recommendations

Apply a penetrating oil, shellac, lacquer, or clear polyurethane after sanding to 180–220 grit; avoid excessive staining, which can obscure natural color.

Notable Features

Distinctive dark color, moderate weight, attractive grain, and good dimensional stability; walnut often has a mild, characteristic odor when freshly cut.

Learn more about Most likely Black Walnut; alternatives include Claro walnut or dark-stained mahogany. in the Wood Encyclopedia
Identified September 21, 2026