Hardwood Lumber Grades Chart

This chart summarizes the main requirements for the standard grades.

Hardwood lumber grades chart.

A quick reference guide to american hardwood lumber grading courtesy of ahec and the nhla. A couple observations on lumber grades that were made by the employees of schaller hardwood lumber company that may benefit the hardwood lumber consumer. Before we get into the different grades of lumber let s take a look at the various defects you may find in a piece of lumber. Here s a chart to help explain the grading system.

A lower grade can be perfectly acceptable depending on placement and usage. Explore the use of the common grades to achieve the most value considering lumber cost and yield. For complete details the grading rule book can be purchased from the national hardwood lumber association. Here s a chart to help explain the grading system.

For complete information consult the appropriate section of the nhla rule book. An overview of lumber grades and wood quality. Grades are listed from highest to lowest. No rules or regulations can be truly effective unless they are understood and correctly applied.

A brief description of the basic grades are. The basic concept of grading is that the grade of all lumber is determined from the poorest face or side of the lumber with a few cases considering the better face as well. Hardwoods are graded by the national hardwood lumber association. The common grades are likely to be most suitable for the cabinet industry most furniture parts and flooring.

Hardwoods are graded by the national hardwood lumber association. Lumber is graded based on the quality and appearance of the wood. Grading designation depends on the number of defects in a board. A lower grade can be perfectly acceptable depending on placement and usage.

The grades are based on the two faces alone. Wood hardness chart species alphabetical hardness species by hardness hardness mahogany honduran 800 padauk 1725 mahogany santos 2200 tabaccowood 1750 maple hard north american 1450 rosewood bolivian 1780 maple ivory 1500 bamboo carbonized 1800 maple soft 999 hickory 1820 merbau 1925 pecan 1820 mesquite 2345 yellowheart 1820. Lumber thickness 4 4 6 4 etc is not considered when grading hardwood. 1 companies that sell their red oak lumber as a select btr grade as compared to a fas 1f grade will have a overall lower quality grade of 1 common lumber because the select boards are in.

Grading designation depends on the number of defects in a board. The grading and measurement of hardwood lumber is not a simple matter and should not be undertaken lightly. Respectfully between export grade names of prime and comsel with the nhla grades of fas and no.