Walnut wood, also known as Black Walnut or American Walnut, is a dark brown hardwood from the Juglans nigra tree, native to North America. Woodworkers and homeowners have long favored it for its rich, dark color and gorgeous grain. You can find it in fine furniture, high-end flooring, cabinetry, and small artisan handicrafts.
At T.Y. Fine Furniture, walnut is among the locally sourced hardwoods we work with, along with cherry, hard maple, and white oak. If you are curious about walnut wood and what makes it such a valued material, you are in the right place. In this guide, explore the characteristics that make this hardwood so special.
Black Walnut Tree Traits
The black walnut tree, known scientifically as Juglans nigra, is the main source of the lumber used to build solid walnut furniture. It grows naturally across the eastern United States, including Ohio, and Canada, often on its own or in small groups.
A mature black walnut tree typically reaches 50 to 75 feet tall, though under good growing conditions, it routinely grows 75 to 100 feet and can grow even taller. The spread or canopy width often reaches 50 to 75 feet wide, while the trunk averages 2 to 4 feet in diameter. Truly ancient walnut trees can develop trunks spanning 6 to 8 feet across or more.
→ Bark. On a mature tree, the bark is thick, dark gray to nearly black, and deeply furrowed. The ridges often cross to form diamond-shaped patterns, so the tree is easy to spot even in winter.
→ Leaves. Walnut leaves are large and compound, and they can stretch well over a foot long. Each leaf holds 15 to 23 leaflets with serrated edges and pointed tips, and they give off a spicy, herbal scent when crushed.
→ Fruit. The fruit is a round, green husk that wraps around a dark brown nut. The husk darkens as it ripens and can stain hands and clothing, and the shell inside is famously hard to crack
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Defining Characteristics of Walnut Wood
Walnut is one of the most beloved local hardwoods because of its distinct, dark color. In fact, black walnut is the primary commercially available naturally dark hardwood native to North America. Along with cherry and oak, walnut wood was a favorite among early American furniture makers–a sentiment we share to this day. It is an exceptionally workable wood that shapes well and frequently displays unique grain variations that add character to every piece we build.
Color
Freshly cut: When freshly cut, the sapwood color of walnut lumber is grayish yellow to creamy white, while the heartwood color is pale brown to dark brown.
Over time: Unlike other popular domestic wood types such as cherry, maple, and white oak, which darken over time, walnut wood tends to lighten with age. Constant exposure to direct sunlight typically lightens the wood faster. The dark brown color can gradually soften to a rich, lighter brown, sometimes with honey tones.
Color Change Timeline
These are estimates only, as color change depends heavily on sunlight exposure.
→ First 12 Months. The most noticeable shift happens in the first year. The dark brown heartwood softens, and the golden or honey undertones start to surface.
→ Years 2 to 6. The transition slows. Color variations across the grain mellow out, shifting toward the warm brown tone classic to mid-century furniture.
→ Years 7 to 10+. The color stabilizes into a warm, honey-medium brown.
Natural oil and hard-wax finishes saturate the grain to bring out a warm sheen, and regular oiling slightly helps slow down the color shifts of the walnut wood piece.
Grain
Walnut wood typically features a straight grain, though it occasionally displays striking waves and swirls. It is also close-grained, so it takes a smooth, polished finish beautifully.
Two special patterns are especially striking. The tight, swirly pattern caused by abnormal cell division that creates growths on the tree is called a burl. The Y-shaped pattern, called a crotch, forms where the walnut tree forks and the wood fibers wrinkle.
Durability & Workability
Black walnut is a relatively dense and durable wood species. It has a Janka hardness rating of 1,010, which makes it naturally resistant to daily wear and tear. For comparison, cherry rates 995, white oak 1,360, and hard maple 1,450. So walnut is a little less dense than maple or white oak, but it is a strong and long-lasting wood that can hold up decades of use when it is well-built and cared for.
Walnut is a dimensionally stable hardwood that holds its shape well through seasonal temperature and humidity changes. On the bench, it cuts, planes, and sands effortlessly. It accepts glue cleanly, finishes beautifully, and responds exceptionally well to steam bending.
Cost
Walnut wood is a premium hardwood and tends to cost more than other domestically available species. For many people, the beauty and lasting quality of walnut make the investment worthwhile, especially when the wood comes from sustainably managed forests and is built into furniture meant to last 50 years or more.
In our shop, walnut wood furniture typically has a similar price range as white oak but higher than cherry and hard maple. For example, a queen-size Modern “Two” Bed Frame in cherry costs $4,499.00, whereas the walnut version is $5,499.00.
Stained Walnut, Veneered Walnut, and Solid Walnut
Because walnut costs more than many other hardwoods used in fine furniture, it is frequently applied as a veneer–a thin slice of wood glued over less costly core material. Other times, lighter hardwoods like maple or poplar are stained to mimic the dark tone of genuine walnut.
At T.Y. Fine Furniture, we build exclusively with solid walnut. We do not use veneers, nor do we pass off pale hardwoods as walnut by staining them. Solid wood simply lasts longer: veneers eventually peel and substandard cores can break down over time. Staining a lighter wood might imitate the color, but it can never replicate the natural color and pattern variations of genuine walnut wood.
Close-up of the Apollo Platform Bed with Integrated Side Tables in Walnut wood. Photo taken in the workshop.
Walnut Wood FAQs
Is walnut a hardwood?
Yes, walnut is a hardwood.
Many people assume “hardwood” describes how tough a wood is, but it actually refers to wood from broad-leaf (dicot) trees. Meanwhile, “softwood” comes from conifers such as pine, fir, and cedar.
Walnut, cherry, maple, and oak are all hardwoods. As for density, walnut rates 1,010 on the Janka scale, which measures how much force it takes to drive a steel ball halfway into the wood. At this rating, walnut sits comfortably in the middle of the range for domestic hardwoods, a good range for fine furniture.
What color is walnut wood?
Most people know walnut as a dark wood, from chocolate to coffee. The deep color comes from the heartwood, the center of the tree, which can also feature streaks of light brown, purple, and grays. The sapwood is usually a pale blonde, though it can sometimes look a yellowish gray. This is why one board of walnut wood can show such a lovely range of color.
Does walnut wood change color over time?
Yes, walnut wood changes color over time. It lightens slightly with age, unlike cherry, maple, and white oak, which darken. Years of sun exposure are the main cause, although indoor lighting can also contribute.
What colors go with walnut wood?
Walnut’s warm, deep brown pairs well with a wide palette. Creamy whites, soft grays, and warm neutrals let the grain take center stage. Sage and olive greens, navy blue, and dusty blues bring a calm, natural contrast. Mustard, terracotta, and burnt orange add warmth for a more mid-century look.
See our guide: 7 Best Colors That Go with Walnut Furniture
Take a look: Sunrise Dresser in Walnut
Can walnut wood be used outdoors?
No, walnut wood is not ideal for outdoor furniture, especially when the legs touch the soil. While the walnut heartwood has some resistance to rot, constant exposure to the elements can damage it.
What is Claro walnut?
Claro Walnut (Juglans hindsii), also known as Northern California Black Walnut, is a walnut species native to northern California. It is less common compared to Black Walnut. A closely related cousin, Southern California black walnut (Juglans californica), grows farther south.
