Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Straight to irregular with cathedral patterns; features visible sapwood-to-heartwood transition and mild figure near the knot/dowel insertion point.
Color Description
Heartwood is a creamy dark chocolate to purplish-brown; sapwood is pale yellowish-gray to off-white. This sample shows high contrast between the dark heartwood and light sapwood. It tends to lighten and become more golden-brown upon UV exposure.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Very Durable; heartwood is highly resistant to decay though sapwood is susceptible to insect attack.
Common Uses
High-end furniture, cabinetry, veneer, gunstocks, turned objects, and specialty small wood items.
Geographic Origin
Eastern North America
Market Value & Sustainability
Estimated Market Value
$12.00 - $18.00 per board foot (varies by figure and width)
Wood Age Estimate
Modern/recently milled; the sharp edges and lack of deep oxidation or patina suggest the wood was processed within the last 1-5 years.
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 well, glues easily, and takes finishes exceptionally well, though figured areas may be prone to tearout.
Notable Features
Distinctive mild, spicy scent when worked. Contains juglone, which can be an allergen for some woodworkers. Known for its exceptional dimensional stability.
Finish Recommendations
Penetrating oils (tung or linseed) or clear polyurethane to highlight the natural grain contrast. Water-based finishes may leave the wood looking slightly 'cold' or gray.
Identification Confidence
High; the characteristic chocolate-brown heartwood paired with the creamy sapwood and semi-porous grain structure is indicative of Juglans nigra.