Whether restoring old houses or building new ones that look old, tom silva finds finish carpentry the most satisfying part of the job. for this project, tom installed window trim that has reeded side and head casings, plain corner blocks, a thick stool, and a dainty apron, all of which he copied from the original trim.. Casings are the moldings that go around the window frames. they are installed outside the house to seal the window frame to the house blocking cold air from entering the interior. inside, casings are the finishing touch to a window installation, the same as baseboards and door moldings finish off a room.. Once the stool is cut to fit, secure it to the sill with finish nails. the side and head casings will be installed just like they were in the wrap-around style. step 4 � create the apron. once the side casings are in place, you can create the apron. measure across the window from the outside of the casings..
Start nailing at the miter, nailing through the casing and into the jamb with 4d finishing nails and into the wall with 6d nails. then cross-nail the corners with 4d nails from the side (shown) and the top and complete nailing the rest of the casing, spacing nails evenly about 12 to 16 inches apart.. The windows have to remain removable, so there doesn't seem to be room to finish the inside of the existing metal window frame with either drywall or wood. if i did that, i would be permanently locking the window into the frame.. The casing is the framing that goes around the top and side edges of the window. the style and material used to make the casing is dependent on the style of the window and the home..
