Board turner

A board turner assembly may include an endless chain， first and second groups of turning arms pivotably coupled with the endless chain and disposed along opposite sides thereof， an upper guide with an inclined surface， an actuator selectively operable to move the upper guide between a resting position and an extended position， and one or more endless belts. The turning arms may be spaced apart at regular intervals that are offset on one side of the chain relative to the other. The groups of turning arms may be operated in an alternating fashion to turn selected boards to a desired orientation (e.g.， wane side up). Corresponding methods and systems are also described.