Nail the trim onto the jamb first and then to the window casing framing, as you did with the top piece. Glue and Pin for a Solid Miter Fasten corners and glue and pin together the miter from both ...

In this article, we'll show you the basic steps for installing a wide trim around a door and window, complete with mitered corners. We'll also show you how to put in a built-up baseboard made from ...