Bob,

I'm in the design stage of a corner kitchen wall cabinet which will have
a door opening at 45 degrees to the corner in which it will be mounted.
It will be a face frame design.

I recently built a corner base cabinet for our kitchen that has the door at
a 45' angle (relative to the wall).

Because I had to allow for sink clearances, I did not start the angled face
frame right at the cabinet edge. My cabinet was more of an "L" shape with
the inside corner cut off at a 45 degree angle. In fact, I cut the back
corner at a 45 degree angle too so the total depth was about 30". This
allowed the finished cabinet to fit through a doorway.

Anyway, where the face frame stiles met in the corners, I ripped the stiles
with 22-1/2 degree bevels then used pocket screws to join them together. It
worked very well. Because the wood is so thin in the corner area, the
screws do slightly penetrate the backside of the corner. But, it's inside
the cabinet where no one will ever notice (unless they stick their hand
back there and feel).

On the other hand, when I installed the toe kicks I just cut the ends at
45' angles, and overlapped the boards. It worked well too, but it wasn't
really a structural situation.

Anthony