Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Flat-sawn with cathedral patterns, featuring knots and natural dark mineral streaks. The grain is generally straight but can be irregular or wavy near limb junctions.
Color Description
Heartwood ranges from light greyish-brown to a deep chocolate brown. Sapwood is distinct creamy white to pale yellow. This sample shows high contrast between the two, with characteristic darkening and patina development over time and light exposure.
Hardness Rating
1,010 lbf (Medium Hardness)
Durability Rating
Very Durable; highly resistant to heartwood decay, though sapwood is susceptible to insect attack.
Common Uses
High-end furniture, cabinetry, veneer, gunstocks, interior trim, flooring, and musical instruments.
Geographic Origin
Eastern North America
Market Value & Sustainability
Estimated Market Value
$8.00 to $15.00 per board foot depending on width, figure, and local availability.
Wood Age Estimate
Freshly milled/cut (less than 1 year). The presence of fresh sawdust and the lack of oxidation on the sapwood indicate a very recent harvest and milling.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and generally considered sustainable in its native range.
Workability
Excellent workability with both hand and machine tools. It planes smoothly, glues well, and takes finishes exceptionally. Can occasionally have grain tear-out around knots.
Notable Features
Distinctive mild, spicy scent when worked. Contains juglone which can be an allergen for some. Known for its shock resistance and dimensional stability.
Finish Recommendations
Penetrating oils (like Tung or Danish oil) to highlight the grain, or clear polyurethane/lacquer to preserve the color and provide durability.
Identification Confidence
High. The characteristic dark heartwood against the creamy sapwood, the deeply furrowed bark on the support logs, and the specific cathedral grain patterns are definitive for Black Walnut.