American black walnut (Juglans nigra)

Other names: Black walnut, American walnut

Distribution

Throughout eastern USA, but principal commercial region is the Central States. One of the few American species planted as well as naturally regenerated.

General description

The sapwood of walnut is creamy white, while the heartwood is light brown to dark chocolate brown, occasionally with a purplish cast and darker streaks. Walnut can be supplied steamed, to darken sapwood or left unsteamed. The wood is generally straight grained, but sometimes with wavy or curly grain that produces an attractive and decorative figure.

Working properties

Walnut works easily with hand and machine tools, and nails, screws, and glues well. It holds paint and stain very well and can be polished to an exceptional finish. It dries slowly, and care is needed to avoid kilning degrade. Walnut has good dimensional stability.

Walnut is a tough hard timber of medium density, with moderate bending and crushing strengths and low stiffness. It has a good steam bending classification.Physical properties

Lumber Packs

WALNUT 1C Rift & Quartered

WALNUT 1C Rift & Quartered

WALNUT FAS Live Sawn 4 inch

WALNUT FAS Live Sawn 4 inch

WALNUT FAS Live Sawn 5 inch

WALNUT FAS Live Sawn 5 inch

WALNUT FAS Live Sawn 6 inch

WALNUT FAS Live Sawn 6 inch

WALNUT FAS Live Sawn 7 inch

WALNUT FAS Live Sawn 7 inch

WALNUT FAS Live Sawn 9 inch

WALNUT FAS Live Sawn 9 inch

WALNUT Prime 5 inch

WALNUT Prime 5 inch

WALNUT Prime 6 inch

WALNUT Prime 6 inch

WALNUT Superior Live Sawn

WALNUT Superior Live Sawn

WALNUT Prime Rough 7 inch

WALNUT Prime Rough 7 inch

WALNUT Prime 8 inch

WALNUT Prime 8 inch

WALNUT Prime 9 inch

WALNUT Prime 9 inch

WALNUT Prime 10 inch

WALNUT Prime 10 inch

Durability

Rated as very resistant to heartwood decay, it is one of the most durable woods even under conditions favorable to decay. Sapwood liable to attack by powder post beetles.

Availability

USA: Reasonable availability with regional limitations.
Export: Reasonable availability in both lumber and veneer.

Main uses

Furniture, cabinet making, architectural interiors, high-class joinery, doors, flooring, and paneling. A favored wood for using in contrast with lighter colored timbers.

© 2002 American Hardwood Export Council