Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Generally straight grain with some cathedral patterning visible in the flat-sawn face; features a semi-porous texture with moderate sized pores and occasional pin knots and small surface checks.
Color Description
Medium to dark chocolate brown heartwood with hints of purplish or reddish undertones; sapwood (not prominently visible here) is typically pale yellowish-gray. It tends to lighten or "gold out" over time with UV exposure.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Durable; highly resistant to heartwood decay, though sapwood is susceptible to insect attack.
Common Uses
High-end furniture, cabinetry, gunstocks, interior paneling, veneer, flooring, turned items, and musical instruments.
Geographic Origin
Eastern United States and parts of Southern Canada.
Market Value & Sustainability
Estimated Market Value
$10.00 to $16.00 per board foot depending on width, grade, and local availability.
Wood Age Estimate
Relatively recent rough-cut lumber; showing moderate oxidation/patina but with fresh saw marks indicating it has been stored in a shop environment for 1-5 years.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and generally considered sustainable with FSC certification available.
Workability
Excellent workability with both hand and machine tools; planes and sands easily. It glues, stains, and finishes very well, though sharp tools are needed to avoid surface fuzzing.
Notable Features
Distinctive mild spicy/earthy scent when worked; contains juglone which can be an allergen for some; famous for its excellent dimensional stability and shock resistance.
Finish Recommendations
Best suited for clear penetrating oils (like Linseed or Tung oil) to enhance depth; polyurethane or lacquer provide durability for high-wear surfaces. Shellac is also excellent for bringing out chocolate tones.
Identification Confidence
High; the deep brown color tone, pore structure, and characteristic check/knot appearance are definitive markers for North American Black Walnut.