Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Principally straight grain with some cathedral figure on the face; end grain shows distinct semi-ring-porous structure with medium-sized pores and visible growth rings.
Color Description
Heartwood ranges from a creamy greyish-brown to a dark chocolate brown. This sample exhibits typical golden-brown tones with a moderate luster and some visible darker streaks. Over time, it tends to lighten slightly to a more golden brown.
Hardness Rating
1,010 lbf (Medium Hardness)
Durability Rating
Durable to Very Durable regarding decay resistance; highly resistant to rot, though susceptible to insect attack.
Common Uses
High-end furniture, cabinetry, interior trim, flooring, gunstocks, veneer, and turned objects.
Geographic Origin
Eastern North America
Market Value & Sustainability
Estimated Market Value
Approximately $12.00 - $18.00 per board foot for 8/4 or 12/4 thickness stock, depending on grade and regional availability.
Wood Age Estimate
The finished furniture piece appears relatively contemporary (5-15 years), though the growth rings indicate the original tree was likely 60-80 years old at harvest.
Sustainability Status
Not listed in the CITES Appendices or on the IUCN Red List; widely available and generally considered sustainable in North America.
Workability
Excellent workability with both hand and machine tools; glues, stains, and finishes very well. It is known for its stability and pleasant working characteristics.
Notable Features
Distinctive mild, spicy scent when worked. Contains moderate levels of tannins and is known for producing juglone, though primarily in the living tree roots/hulls.
Finish Recommendations
Oil-based finishes (like Tung or Linseed oil) or clear polyurethane are recommended to enhance the natural color and depth. It does not require staining.
Identification Confidence
High. The chocolate-brown heartwood color, the specific semi-ring-porous pore arrangement visible on the thick edge (end grain), and the transition between growth rings are classic diagnostic features of Juglans nigra.