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

Scribe or mitre as the occasion demands - or depending upon material sizes,
a simple butt-joint may suffice with a bit of filling to hide imperfections
of fit.


Cash