Lumber Grades: What Builders Should Know

Lumber grades help builders determine the quality, strength, appearance, and appropriate use of different boards. Understanding these classifications makes it easier to select lumber that meets the structural and practical requirements of a project without unnecessarily choosing a higher grade. Factors such as knots, grain patterns, splits, warping, moisture, and information on a grade stamp can also help determine whether a board is suitable for a particular application. For a detailed breakdown of lumber grades, read the complete guide.
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