Black Walnut

Juglans nigra.

Black Walnut is one of America's most widely known and most valuable species. The wood is moderately heavy, hard, and strong. The heartwood color ranges from light brown to chocolate brown -- sometimes with purplish overtones; the sapwood is light brown, and often steam treated in order to reduce the contrast.

Black Walnut grows throughout the eastern United States, but in relatively low quantities. The wood works easily, stains and finishes extremely well, and is often used in furniture and architectural products which highlight its particular grain pattern, color, and texture.

General Information

Uses Availability Price
Funiture, cabinets, architectual panels, doors, floors, gun stocks woodenware. Generally available 4/4 through 8/4 thickness, limited availability 10/4 and thicker. Valuable.

Relative Working Properties

Machining Resistance to splitting in nailing Resistance to splitting in screwing Gluing
Excellent Fair Good Good

Physical Properties

Specific gravity (12% m.c.) Average shipping weight kilograms (kg) per cubic metre (m3) air dry Average volumetric shrinkage (oven dry % of green) Modulus of rupture (kilopascals) Modulus of elasticity (megapascals) Side hardness (newtons)
0.55 579 12.8 101000 11600 4500