The Basics of Hardwood Standard Lumber Grades - Missouri Department of Conservation - - In cooperation with the National Hardwood Lumber Association and the United States Department of Agriculture. Explains how hardwood lumber is graded and why defect-free, clear wood is the most valuable.
If the FAS example board had a full width cutting of six and three quarter feet, this being an eight foot board would mean that the split would be more than twice the sm, sm=6 times two = 12, so there would be 16 inches of split in this board, which is not allowed in FAS according to paragraph 58 in the NHLA rule book.
gauleyskater 1 month ago