Jack wants to know just how a door frame is made, so that he can take his apart. The sill is rotten.
Usually, but not always, the sill goes right under the vertical framing. Sometimes the vertical piece is notched into the sill. In either case, you have to either cut out all the rotten wood, or ...
Ed writes from Ajax, Ontario : All 3 walls of my bathroom shower stall are finished with 4" ceramic tiles and are in good shape. When I had to remove one of them, I discovered that the drywall was behind it was so wet that I had to put a fan on it over night to dry it out before I could glue the ...