"mark" wrote

Internal door in the corner of a room.

In the corner on the upright part of the doorframe is only enough room for
quadrant beading.
What is the correct way for the quadrant beading to join up with the ogee
architrave of the head?

mark

If you like the quadrant, then it is usually profiled to "overlap" and
follow the contour of the architrave.
Personally I have used thin strip wood instead in this situation as it gives
a cleaner slightly more modern look

Phil