The demand for wood products in construction and the need for wise use of our renewable resource - wood, call for effective use of the entire tree. To make structural finger jointed lumber, short sections of lumber are bonded into long, strong lumber needed for construction using code approved finger joints. Structural finger jointed lumber means more lumber from each log.
Finger Joint Quality Control
The same agencies that assure the quality of unjointed lumber oversee the production of Structural Finger Jointed Lumber. In addition to visual grade rules, regular in-plant testing assures strong, reliable joints. Manufacturers sample production several times each shift and test for bond strength and adhesive durability. Structural finger joints must exhibit strength values more than twice the design value for the grade. Grading agencies review testing monthly.