Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Generally straight and open, though the presence of numerous knots in this branch sample creates irregular, swirling, and circular figure patterns around side-branch growth points.
Color Description
The sapwood is pale yellowish-white to tan. The heartwood is a deep dark chocolate brown with occasional purplish or reddish streaks. It typically lightens over time with UV exposure.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Durable and very resistant to heartwood decay, though sapwood (visible here) is susceptible to insect attack and rot.
Common Uses
High-end furniture, cabinetry, gunstocks, interior paneling, veneer, and turned objects.
Geographic Origin
Eastern and Central North America.
Market Value & Sustainability
Estimated Market Value
$10.00 - $18.00 per board foot for kiln-dried lumber; the pictured raw branch has negligible commercial value.
Wood Age Estimate
The sample is from a young branch or sapling, likely between 3 to 7 years old based on the diameter and bark texture.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and generally considered sustainable with FSC certification often available.
Workability
Excellent; it works easily with both hand and machine tools. It glues, stains, and finishes very well, though the light sapwood is often steamed or stained to match heartwood.
Notable Features
Distinctive mild, spicy nut-like scent when cut. Contains juglone, which can be an allergen and is toxic to certain plants. Known for exceptional dimensional stability.
Finish Recommendations
Varnish, lacquer, or oils are recommended. Tung oil or linseed oil beautifully highlights the natural dark tones of the heartwood.
Identification Confidence
Medium-High. The dark heartwood core visible at the top cut, the grayish-brown 'bumpy' bark, and the distinctive branch scars are characteristic of young Juglans nigra.