Fingerjointing is a process in which short pieces of high grade wood are end glued together to make long lengths of stock. The advantages to this process are cost and availability of long lengths. Fingerjointed wood is used in a variety of applications including interior and exterior trim, moldings, and siding materials. In exterior applications, its one drawback is the way in which the different grains of the various pieces react to weather exposure. The individual pieces may telegraph their differences through the finish coat of paint giving a somewhat uneven or checkerboard appearance over time. Fingerjointing is a wonderful recycler of wood products if you give thought to where it can work best for you.