American Walnut

Serving the industry

over 100 years

America’s walnut

manufacturer’s voice

Maintaining national &

international markets

Advocate for walnut

specific grading rules


The American Walnut Manufacturers Association encourages sustainable harvesting practices to ensure full utilization of timber resources without compromising forest health.

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Walnut Grading Rules

Walnut lumber has specific grading rules that have been developed by the National Hardwood Lumber Association (NHLA) because of the unique growing characteristics and relative scarcity of the species. 

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Learn more about walnut lumber grades and features – American Hardwood Export Council. Why is walnut lumber graded lower than other hardwoods? The rebuttal (or the real answer). Sustainable Harvesting and Positive Environmental Practices

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About American Walnut

American Black Walnut (Juglans nigra) is a tough hard timber of medium density. It is native to the U.S. and its principal commercial region is the Central States. Its cooperative working characteristics, coupled with its rich brown coloration puts the wood in a class by itself among temperate-zone hardwoods. Applications include furniture, gunstocks, veneer, cabinetry, architectural interiors, high-class joinery, doors, flooring, and paneling.