How To Install Door Trim With Uneven Walls. Installing this trim can cause trouble when the wall on which it will be installed proves uneven. 3 installing the new trim.
Miter saw, 4′ level, 36 level, tape measure.
Painfully sand the prefinished andersen window jamb down? I had to custom make doors and trim to make it look normal! Either way, to trim a door, you need to bridge the gap between the door jamb (the frame from on which the door is hinged and where the latch engages) and the wall. Apply masking tape and protective paper around the trim's edges to protect wall surfaces.