Black Walnut

American black walnut (Juglans nigra) is the domestic hardwood everyone's picturing when they say "fine furniture wood" — deep brown heartwood, tight straight grain, and a workability that figured hardwoods rarely bother offering.

Working Properties

At a Janka hardness of roughly 1,010 lbf, black walnut is softer than red or white oak but plenty hard enough to earn its keep in furniture and flooring. It's routinely called one of the easiest hardwoods going, full stop — cuts clean, planes and routs without much tearout even where the grain gets interesting, sands smooth. It glues, screws, and finishes exceptionally well too, which between all of it explains why it never lost its spot as the fine-furniture and gunstock default.

Movement and Stability

Walnut behaves itself once dried — tangential shrinkage (green to oven-dry) sits around 7.8%, radial around 5.5%, a lower ratio than oak that translates to more predictable, more even movement across the grain. Predictable isn't the same as zero, though; size and join any solid panel with seasonal movement in mind, and let the Wood Movement Estimator do the math for your board width and local humidity swing.

Safety

Black walnut dust can irritate skin, eyes, and the respiratory system like any hardwood dust, and some woodworkers report a heightened sensitivity specifically to walnut. Standard precautions apply — dust collection at the source, a properly rated respirator when sanding or machining. Notice an unusual skin or respiratory reaction working walnut specifically, and it's worth extra ventilation and PPE, or a conversation with a physician.

Typical Uses

Fine furniture, cabinetry, gunstocks, veneer, turned objects. Its color and figure — crotch and burl sections especially — also make it a premium pick for decorative veneer work.