Ideally, look for wood strips with a natural wood finish that are approximately ¼ inch thick, ¾ inch wide, and 6 inches long. Make sure that you have enough supply to cover your window sill with ...

Raise the window and remove the storm ... out of a pressure-treated 2-by-10 or 2-by-12. It has to be as wide as the original sill. Cut the new sill to match the old, then put it in place.

It has to be as wide as the original sill ... There is a reason your sills rotted. Check the tops of each window to see if there is a window flashing over the top casing. Such a flashing is ...