| The shims I am talking about are between the window jamb and the casing to fill the gap between the jamb and the sheetrock which is proud of the jamb. I am thinking that I will need to make a shim to "picture frame" the window jamb so that the casing is then flush to the sheetrock. Since the windows already have extension jambs, I do not want to make new ones, I just need to extend them to the flush surface of the sheetrock. |