
Likely walnut (possibly black walnut); species identification is uncertain from this weathered, close-up view.
Juglans nigra (likely; other walnut species are possible) · Hardwood
AI-generated identification · may be incorrect- Type
- Hardwood
- Origin
- Black walnut is native to eastern and central North America.
- Hardness
- About 1,010 lbf for black walnut — Medium.
- Durability
- Moderately durable; heartwood has some decay resistance, but is not reliably weatherproof and can be vulnerable to insects.
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Grain Pattern
Appears mostly straight to mildly irregular, with no clear decorative figure; visible crosswise lines may be saw or tool marks rather than grain.
Color & Appearance
Brown to dark brown surface with uneven gray-brown weathering; the original heartwood and sapwood colors are not reliably visible. Oxidation and light exposure can darken or mute the color.
Hardness (Janka)
About 1,010 lbf for black walnut — Medium.
Durability & Decay Resistance
Moderately durable; heartwood has some decay resistance, but is not reliably weatherproof and can be vulnerable to insects.
Value & Age
Roughly US$8–20 per board foot for typical black walnut lumber; grade, dimensions, and region substantially affect price.
AI estimate for general guidance only — not a professional appraisal. Actual value depends on grade, dimensions, condition, and local market demand.
- Wood Age Estimate
- Cannot be estimated from this image; surface weathering alone does not establish the wood’s age.
Common Uses
Furniture, cabinetry, flooring, veneer, turning, and musical instruments.
Geographic Origin
Black walnut is native to eastern and central North America.
Workability
Generally machines and hand-tools well, sands and glues readily; sharp tools help avoid tearout in irregular grain.
Finish Recommendations
Sand to clean, sound wood, then use oil, shellac, lacquer, or polyurethane; test first because weathering may cause uneven absorption.
Notable Features
Walnut heartwood is often richly brown and can show attractive color variation; the pictured surface obscures identifying features.