Plank most commonly refers to a split, flat piece of woo, often planed; it is technically distinguished from a sawn board. However plank may also be used to describe a thick board, of one and one-quarter inch or thicker for hardwoods and one and one-half inch or thicker for softwoods and 8 inches or wider. Confusingly, a horizontal hewn or sawn log house can be called a "plank house" when the timbers are of rectangular shape such as 7" x 11". Plank may also refer to: