Gable, that is interesting that a loose knot would grade the same as a hole. I would think a drilled hole would drop the grade lower than a knot. This whole grading thing has me wondering. With knots the grain is still running around the branch and it gets smaller as it works into the timber. We take a #2 or better timber and cut mortices and peg holes into it completly severing the fiber.
It sounds tricky designing without seeing these timbers.
Tim
