On 26 Sep 2003, Rob spake unto rec.woodworking:

I'm installing crown moulding in the dining room which has an opening
between the dining room and the kitchen. The opening goes right up to
the ceiling so I was wondering how I could "end" the moulding. I do
not want to install crown in the kitchen so does anyone have any
recommendations where it should end and how the end should look?
Should I end it between the 2 walls (5" space) or should I make a
regular corner into the kitchen and end it about 12" in?

Make a mitered outside corner at each side of the doorway opening, or make
outside corners that run into the opening, and stop them with another
ouside miter before entering the kitchen. You'll have to glue the small
piece that makes the final outside corner, it will likely split if you try
to nail it.