A professional who operates bank of circular saws to cut out defective sections of boards. Responsibilities include:

• Reads markings on boards as boards move on conveyor to saws to determine what cuts will produce highest grade.
• Moves levers (piano-like keys) to raise or lower one or more saws along trimmer bed to cut lumber into lengths and trim out defects.
• Climbs onto conveyor to lift and remove jammed lumber.