Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Straight grain with significant wavy and cathedral figure; flat-sawn orientation showing a broad, fluid pattern and subtle ripple effects.
Color Description
Heartwood ranges from light greyish brown to dark chocolate brown. This sample shows a muted, weathered tan-brown appearance with subtle purple/grey undertones. It will typically darken and become more amber/yellow over time with UV exposure.
Hardness Rating
1,010 lbf (Medium Hardness)
Durability Rating
Durable; very resistant to heartwood decay, though susceptible to insect attack (sapwood).
Common Uses
High-end furniture, cabinetry, interior paneling, gunstocks, veneer, and turned objects.
Geographic Origin
Eastern North America
Market Value & Sustainability
Estimated Market Value
$10.00 - $15.00 per board foot depending on thickness and width
Wood Age Estimate
Estimated 20-40 years old based on the oxidation level and the appearance of the surface patina, which suggests it was part of a finished piece of furniture that has been stripped.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and generally considered sustainable.
Workability
Excellent workability with both hand and machine tools. It planes smoothly, holds stains and glues well, and is known for its ability to take a very high polish.
Notable Features
Distinctive mild, spicy odor when worked. Contains juglone, which can cause mild allergenic reactions in some individuals.
Finish Recommendations
Best suited for penetrating oils (tung or linseed) to enhance chatoyancy, or clear polyurethane for protection. Shellac is also an excellent traditional primer.
Identification Confidence
High; the pore structure visible in the cathedral grain and the specific grey-brown heartwood oxidation are classic hallmarks of Juglans nigra.