Most likely Black Walnut; alternatives include another walnut species or stained/ weathered oak. — Juglans nigra

Most likely Black Walnut; alternatives include another walnut species or stained/ weathered oak.

Juglans nigra · Hardwood; North American species.

AI-generated identification · may be incorrect
Type
Hardwood; North American species.
Origin
Eastern and central North America, especially the Mississippi Valley and adjacent regions.
Hardness
1,010 lbf Janka — Medium.
Durability
Moderately durable; heartwood has useful resistance to decay and insects, but exposed weathering will gray and degrade the surface.

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Grain Pattern

Mostly straight to mildly irregular, with visible growth rings and a rough, flat-sawn slab surface; no clear decorative figure.

Color & Appearance

Weathered medium brown to gray-brown heartwood with darker streaking and little distinguishable sapwood; fresh walnut is richer purple-brown and mellows with light.

Hardness (Janka)

1,010 lbf Janka — Medium.

Durability & Decay Resistance

Moderately durable; heartwood has useful resistance to decay and insects, but exposed weathering will gray and degrade the surface.

Value & Age

Estimated Market ValueNot an official valuation

Approximately $8–$18 per board foot for sound, kiln-dried walnut; this rough/weathered piece may be worth less.

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

Wood Age Estimate
Not reliably ageable from this image; surface weathering suggests outdoor exposure, not necessarily old wood.

Common Uses

Furniture, cabinetry, veneer, flooring, gunstocks, turning, carving, and specialty woodworking.

Geographic Origin

Eastern and central North America, especially the Mississippi Valley and adjacent regions.

Workability

Generally machines, sands, glues, and finishes well; rough slabs may contain grit, checks, and hidden defects that cause tear-out or blade wear.

Finish Recommendations

Remove weathered fibers, sand progressively, then use oil, shellac, lacquer, or polyurethane; seal end grain to reduce checking.

Notable Features

Characteristic walnut brown color, moderate weight, attractive dark streaking, and good dimensional stability.

Learn more about Most likely Black Walnut; alternatives include another walnut species or stained/ weathered oak. in the Wood Encyclopedia
Identified September 22, 2026