Black Walnut
Juglans nigra · Hardwood
- Type
- Hardwood
- Origin
- Eastern North America (Central and Eastern United States).
- Hardness
- 1,010 lbf (Medium)
- Durability
- Very Durable regarding decay resistance; highly resistant to rot, though susceptible to insect attack if left untreated.
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Grain Pattern
Mostly straight grain with light cathedral figuring towards the lower center, fine to medium coarse texture, and flat-sawn orientation.
Color & Appearance
Heartwood ranges from rich chocolate brown to dark brownish-tan with darker grey/black streak variations; lighter sapwood tones visible along edges. Exhibits medium natural luster.
Hardness (Janka)
1,010 lbf (Medium)
Durability & Decay Resistance
Very Durable regarding decay resistance; highly resistant to rot, though susceptible to insect attack if left untreated.
Value & Sustainability
- Estimated Market Value
- $10.00 to $16.00 per board foot for Select & Better / FAS grade kiln-dried lumber.
- Wood Age Estimate
- Recently milled or surfaced board showing slight surface oxidation, light handling scuffs, and a visible rectangular patch from sticker/label shadow; estimated wood sample age 1 to 5 years post-harvesting/milling.
- Sustainability Status
- Not CITES listed; classified as Least Concern on the IUCN Red List. Widely available from sustainably managed forests across North America.
Common Uses
High-end furniture, fine cabinetry, architectural millwork, gunstocks, turned objects, veneers, and musical instruments.
Geographic Origin
Eastern North America (Central and Eastern United States).
Workability
Excellent workability with both hand and machine tools. Cuts cleanly, planes smoothly, holds screws and nails well, glues reliably, and sands to a high polish.
Finish Recommendations
Accepts a wide range of finishes beautifully. Penetrating oil finishes (such as Danish oil, tung oil, or wipe-on polyurethane) highlight the depth and natural warm tones of the grain. Film finishes like clear lacquer or polyurethane provide durable surface protection.
Notable Features
Distinctive rich dark brown color palette; pleasant mild nut-like odor when worked; moderate juglone content which can cause mild allergic reactions or respiratory irritation in sensitive woodworkers.
