Walnut is a hardwood that is native to North America and Europe. It is a slow-growing tree that can reach heights of up to 100 feet. Walnut wood is dark brown to black in color, with a straight, even grain. It is a strong and durable wood that is also easy to work with.
Walnut lumber is a popular choice for a variety of woodworking projects. It is often used for furniture, cabinets, and doors because it is strong, durable, and easy to work with. Walnut is also used for making flooring, gunstocks, musical instruments, and turned objects. It is a good choice for these applications because it is dark and has a straight, even grain.
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 is usually supplied steamed, to darken sapwood. The wood is generally straight-grained, but sometimes with wavy or curly grain that produces an attractive and decorative figure.
Walnut works easily with hand and machine tools, and nails, screws and glues well. It holds paint and stain very well for an exceptional finish. It dries slowly, and care is needed to avoid kiln degrade. Walnut has good dimensional stability.
Walnut is a tough hardwood of medium density, with moderate bending and crushing strengths and low stiffness. It has a good steam-bending classification.
RATINGS 1 TO 5 (BEST)
RATINGS 1 TO 5 (BEST)
ROUGH CUT LUMBER
Rough cut lumber comes straight from the mill through the dry kiln in the form of planks. This is a version of lumber that has been kiln dried with no further processing.
SURFACE 2 SIDES (S2S)
Surfaced Two Sides (S2S) is rough lumber that has been dressed on the top and bottom of the board in order to meet the requested thickness. Associated Hardwoods has state-of-the-art planers that dress the boards to meet the customer's exact specifications.
Rip-To-Width lumber is where both sides of the board are ripped to a customer's specified width after surfacing.
Rip-To-Width/Cut-To-Length is where the board is manufactured and defected to a customer's unique specifications.
Glued-To-Spec is where boards are ripped & cut and glued into a panels.
NHLA Grading Rules
The NHLA grades are based on the percentage of clear-defect free wood on a board. The measurements of this percentage are referred to as clear-cuttings.
Other than the FAS grades, the grade of the board is determined from the percentage of these clear cuttings and do not consider defects outside of the clear areas.
Learn more about NHLA Grading with this downloadable resource.