American Hardwood Lumber Grades

The illustrated guide to american hardwood lumber grades.

American hardwood lumber grades.

The highest grade boards are long wide and free of defects. The simplified process of determining hardwood lumber grades. It is necessary to consult with your supplier as to the exact specifications being applied to these export grade names. Non manufactured wood packing nm program.

Thus the sm is 4. The grading system is based therefore on the measurable percentage of clear wood that is defect free for each of the grades. Hardwood grading for lumber considers the size and number of pieces or cuttings which may be yielded during the creation of a hardwood product. For complete details the grading rule book can be purchased from the national hardwood lumber association.

Treated wood program. Hardwood lumber industry and forms the basis for export grading. This guide provides a simplified explanation of the nhla grading system which is the national standard for the u s. American hardwood lumber council.

Worldwide hardwood lumber producers grade their lumber assuring downstream consumers of the lumber of the lumber s quality for the intended use. Alsxc american lumber standard committee incorporated germantown md the alsc site contains general information on the alsc the accreditation programs it adm inisters and contact information for the agencies the alsc accredits. Today the nhla has over 2000 members worldwide and the nhla rules are still the national standard for the us hardwood industry and form the basis for grading of export lumber. The nhla grading system which is used by buyers and sellers of hardwood lumber describes the amount of usable clear material in a board.

Multiply the sm by the thickness 2 and the bf is 8. The illustrated guide to american hardwood lumber grades 03 example of sm and bf. Hardwood lumber grades and grading rules have been established and are governed by the national hardwood lumber association nhla. The illustrated guide to american hardwood lumber grades.

Put simply lumber grading serves quality assurance needs. Explore the use of the common grades to achieve the most value considering lumber cost and yield. Respectfully between export grade names of prime and comsel with the nhla grades of fas and no. The board below is a 2 thick 6 1 4 wide and 8 long.

The common grades are likely to be most suitable for the cabinet industry most furniture parts and flooring. Color sorting in addition to sorting for grades or selecting specific widths various species are commercially sold at an added value.