Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Generally straight grain but can be irregular; features prominent knots and cathedral figure in flat-sawn sections. This specific sample shows circular knots and some swirl.
Color Description
Heartwood ranges from a lighter pale brown to a dark chocolate brown with darker brown streaks. Sapwood is pale yellow-gray to nearly white. It tends to lighten and become more amber-toned over time with UV exposure.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Very Durable; highly resistant to heartwood decay, though sapwood is susceptible to insect attack.
Common Uses
High-end furniture, cabinetry, gunstocks, interior trim, flooring, veneer, and turned objects.
Geographic Origin
Eastern United States and parts of Southern Canada.
Market Value & Sustainability
Estimated Market Value
$10.00 - $15.00 per board foot depending on region and grade (Select/FAS).
Wood Age Estimate
Relatively recent/modern rough-sawn lumber, likely aged 1-5 years post-processing based on lack of significant oxidation and fresh saw marks.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and generally considered sustainable.
Workability
Commonly considered one of the best hardwoods to work with. It planes and glues well, though knots can cause minor tearout. It turns and carves excellently.
Notable Features
Distinctive mild, nut-like scent when working. Contains juglone, which can be an irritant to some. Known for its excellent dimensional stability.
Finish Recommendations
Best highlighted with penetrating oils (Linseed or Tung) or polyurethane to enhance depth. Use a sanding sealer if the grain is particularly porous.
Identification Confidence
High; the characteristic chocolate-brown hue, presence of dark knots, and typical open-grain texture are diagnostic of Black Walnut in a rough-sawn state.