"baltimore" wrote in message
...
I have a project that involves substantially shortening solid exterior
doors by about 90mm (from the bottom). The doors are Jen weld Windsor
win21 with a single glass panel. My question is, can I comfortably cut
that amount from the bottom of the door and still retain integrity?
These doors are to be used as bi folds.

Being solid core doors, I don't see a problem with removing several inches
from either end without losing any integrity. In fact, the shorter the door,
the more stable it will become.