Your baseboard molding often looks like it is too thick to fit flush against the back side of the door casing because you are looking at the rounded edge of the casing. In actuality, if you cut the baseboard neatly and squarely, it will just fit in there without sticking past the front of the molding. A little caulking on your finger will help if the cut is not perfect.I need to know how to cut my moulding to fit nicely up against the existing door trim.