In its appearance, Walnut has clearly visible annual growth rings. Heartwood is a variegated dark chocolate brown, sometimes with purplish hue; sapwood is nearly white, often steam-stained at the sawmill to blend with heartwood.
Can be a challenge to work because of interlocked grain, especially on quartersawn surfaces. Planing can cause tearout and/or fuzzy surfaces. Poor dimensional stability. Glues, stains, and finishes well. Responds well to steam bending, and holds nails and screws well.