How to Grade Displaceable Knots

How to Grade Displaceable Knots

Grading Knots Away From the Edge

Learning to grade edge knots and combination knots in dimension lumber takes a fair amount of study and practice. These type knots most often limit the grade of a piece. Once the grader has a complete understanding of how these knots are measured and limited it becomes a matter of closely judging the size of what you see and comparing this to a known limit for a known knot size. This makes it relatively easy to estimate the size, and grade accurately on edge and combination knots.

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What every Dimension Lumber Grader Trainee Should Know

What Every Dimension Lumber Grader Trainee Should Know

If you are learning to grade Dimension Lumber for the first time, there are some basic facts and skills that you should study and practice before working with your trainer. Following is a list of these along with some tips, and further clarifications of rules that have proven vital to mastering the art of lumber grading. Studying, practicing, and memorization of these will speed up your training process.

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