Black Walnut (sapwood area)
Juglans nigra • Hardwood
Grain Pattern
Straight to slightly irregular with a medium-coarse texture; visible cathedral grain at the top edge of the board in a flat-sawn cut.
Color Description
Pale yellowish-gray to off-white sapwood transition with some grayish-brown heartwood streaks. Dulls over time with UV exposure; heartwood lightens and sapwood yellows.
Hardness Rating
1010 lbf (Medium)
Durability Rating
Heartwood is very durable and rot resistant; sapwood (shown) is non-durable and susceptible to insect attack.
Common Uses
High-end furniture, cabinetry, veneer, gunstocks, interior trim, and turned items.
Geographic Origin
Eastern North America
Market Value & Sustainability
Estimated Market Value
$10.00 - $15.00 per board foot ( FAS grade heartwood; sapwood usually reduces value).
Wood Age Estimate
Relatively recent rough-cut lumber, likely under 2 years old, showing some superficial oxidation and handling dirt/stains.
Sustainability Status
Not CITES listed; IUCN status of least concern; widely available and sustainable in its native range.
Workability
Generally excellent with both hand and machine tools; however, rough-sawn surfaces like this sample require significant surfacing to prevent tear-out.
Notable Features
Faint, mild nutty odor when worked. Can cause allergic reactions or skin irritation in some individuals; contains juglone which is toxic to certain plants.
Finish Recommendations
Penetrating oils or wiping varnishes respond best to highlight the grain; grain filler may be used if a glass-smooth finish is desired.
Identification Confidence
Medium-High; the pore structure, color transition from sap to heart, and visible cathedral figure are characteristic of Juglans nigra, though the rough surface hides some fine details.