Woodpeckers often return to the same nesting area every year of their adult life.  They prefer a nest box with a roughened interior and a floor covered with a two-inch layer of wood chips or coarse sawdust.  For best results, place woodpecker houses high up on a tree trunk exposed to direct sunlight.  Although the woodpeckers would prefer to nest in a vacant decaying tree, such tree is not always available to them.  Help Mother Nature and provide a suitable house for the woodpecker.  This cedar constructed house has an entry hole that is 2.25" in diameter and opens from the front for easy cleaning.  Overall dimensions are 7 x 9.5 x 15