Black Walnut
Juglans nigra • Hardwood
Grain Pattern
Straight to irregular grain with a medium texture; visible tool marks show a slight wavy figure where the wood was hand-carved or hewn.
Color Description
Heartwood is medium to dark brown with some reddish undertones. The sample shows significant oxidation and weathering, giving it a duller, more earthy tone with some graying in specific areas.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Durable; heartwood is very resistant to decay, though the sapwood is susceptible to insect attack (visible exit holes suggest past beetle activity).
Common Uses
High-end furniture, cabinetry, gunstocks, interior trim, veneer, and decorative woodturning.
Geographic Origin
Eastern North America
Market Value & Sustainability
Estimated Market Value
$10.00 - $15.00 per board foot for kiln-dried FAS grade; lower for reclaimed/insect-damaged samples.
Wood Age Estimate
Estimated 40-70 years based on the heavy oxidation, deep radial cracks (checking), and evidence of old insect boreholes.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and generally managed sustainably in North America.
Workability
Generally easy to work with both hand and machine tools. It glues, stains, and finishes well, though the hewn surface of this sample indicates toughness against cross-grain carving.
Notable Features
Distinctive mild odor when cut; contains juglone which can be an allergen; high tannin content; known for excellent dimensional stability.
Finish Recommendations
Danish oil or tung oil to enhance the natural dark color; polyurethane for better protection on weathered surfaces.
Identification Confidence
Medium-High; the pore structure, color of the oxidized heartwood, and characteristic checking patterns strongly suggest Juglans nigra, though extreme weathering can mimic Elm or Butternut.