Black Walnut
Juglans nigra · Hardwood
- Type
- Hardwood
- Origin
- Eastern and Central North America
- Hardness
- 1,010 lbf (Medium)
- Durability
- Very Durable regarding heartwood decay resistance, though sapwood remains susceptible to insect attack and rot if untreated.
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Grain Pattern
Curved and wavy growth rings originating from a limb crotch or trunk section, featuring fine open pores, semi-ring-porous structure, and gentle chatoyancy.
Color & Appearance
Rich light-to-medium chocolate brown heartwood with golden-tan undertones, accompanied by a distinct pale cream-to-yellowish sapwood band along the outer edge. Lightens slightly over time with prolonged UV exposure.
Hardness (Janka)
1,010 lbf (Medium)
Durability & Decay Resistance
Very Durable regarding heartwood decay resistance, though sapwood remains susceptible to insect attack and rot if untreated.
Value & Sustainability
- Estimated Market Value
- $10.00 - $18.00 per board foot for rough-sawn wide slab material.
- Wood Age Estimate
- Freshly surfaced or rough-milled timber stock (1–5 years old since harvest) showing recent pencil markings, planer chatter marks, and minimal surface oxidation.
- Sustainability Status
- IUCN Red List status: Least Concern. Not CITES listed. Widely available and sustainably harvested throughout North America.
Common Uses
Fine furniture, live-edge tabletops, cabinetry, gunstocks, turned bowls, decorative veneers, and specialty woodworking.
Geographic Origin
Eastern and Central North America
Workability
Excellent workability with both hand and power tools. Glues, sands, and turns exceptionally well. Slight risk of tearout around irregular grain regions.
Finish Recommendations
Penetrating oil finishes (such as Danish oil, tung oil, or wipe-on polyurethane) to enhance natural contrast, depth, and richness without clouding the grain.
Notable Features
Distinctive mild earthy aroma when cut, contrasting pale sapwood line, prominent growth ring definition, and excellent dimensional stability once cured.
