mills repair cement
Apr 23, 2012· By Mark Clement . Removing and Replacing a Rotten Sill Plate. A rotten sill plate is a common occurrence in old houses—and a big problem. The sill is the piece of wood closest to the ground, either on a foundation or piers, and is usually a "timber-sized" board: 3×6, 3×8, 4×6, 4×8, and so on.