Most likely spalted walnut; alternatives include spalted oak or mahogany. — Likely Juglans nigra; alternatives Quercus spp. or Swietenia spp.

Most likely spalted walnut; alternatives include spalted oak or mahogany.

Likely Juglans nigra; alternatives Quercus spp. or Swietenia spp. · Hardwood; likely domestic, figured/spalted stock.

AI-generated identification · may be incorrect
Type
Hardwood; likely domestic, figured/spalted stock.
Origin
Eastern and central North America, especially the Midwest and Appalachian regions.
Hardness
About 1,010 lbf Janka—Medium hardness.
Durability
Moderately durable; heartwood has reasonable decay resistance but is not ideal for prolonged exterior exposure.

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Grain Pattern

Mostly straight to irregular, with prominent dark, winding spalting lines and broad flame-like figure; appears flat-sawn.

Color & Appearance

Medium brown heartwood with darker streaks and lighter sapwood-like zones; moderate luster. Walnut commonly lightens or turns warmer amber-brown with age and light.

Hardness (Janka)

About 1,010 lbf Janka—Medium hardness.

Durability & Decay Resistance

Moderately durable; heartwood has reasonable decay resistance but is not ideal for prolonged exterior exposure.

Value & Age

Estimated Market ValueNot an official valuation

Approximately $8–$20 per board foot for attractive spalted walnut; exceptional figured stock may cost 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
Cannot reliably date from one photograph; the surface appears finished and moderately aged, not necessarily antique.

Common Uses

Furniture, cabinetry, paneling, flooring accents, boxes, veneer, and decorative turning.

Geographic Origin

Eastern and central North America, especially the Midwest and Appalachian regions.

Workability

Generally machines, sands, glues, and finishes well; irregular spalting can cause tearout and localized softness, so use sharp tools and lighter cuts.

Finish Recommendations

Use a penetrating oil, shellac, lacquer, or clear polyurethane after careful sanding; a wash coat can help even absorption in soft spalted areas.

Notable Features

Distinctive dark spalting lines and irregular figure; spalting indicates fungal patterning during growth, not a separate species.

Learn more about Most likely spalted walnut; alternatives include spalted oak or mahogany. in the Wood Encyclopedia
Identified September 9, 2026