Walnut: Domestic Hardwood

This King of American hardwoods is highly prized for its dark brown to black color. Used in all types of woodworking applications, cabinetry, and flooring. Walnut has a dark heartwood and light white sapwood. Most commercially sold Walnut is steamed to even the color between the heartwood and sapwood, but unsteamed Walnut is also available.

Walnut has a higher waste factor than most hardwoods if all black is needed, and it tends to be knottier than most hardwoods. Walnut logs often get purchased for veneer, making it difficult to get wide clear boards from lower grade logs. Walnut is also very popular for live edge slabs where the heartwood and sapwood color contrast can be displayed.

Domestic Walnut Lumber


Origin of Wood TypeThe U.S.
Botanical NameJuglans Nigra
Specific Gravity.60
Avg. Weight Per BF3.7 lbs
Color RangeBlack to brown heartwood, white sapwood
Rarity / AvailabilityCommon
Typical Avg. Width5 – 16 inches
Typical Avg. Length8 – 12 feed
Avg. Waste Factor30% or higher depending on color requirements and knot usage
Wood UsesAll woodworking, flooring, and cabinetry
Lumber GradesFAS through 2 common rustic
Other Trade Names American Black Walnut or Black Walnut