Our house has double steel entrance doors with large areas of glass.
What I thought was simply a wooden trim moulding around the glass and
was cracked turns out to be some kind of hard plastic that is held in
place by screws through a similar moulding on the inside of the door.
Together these mouldings hold the glass in place.

I have no idea who made the doors. Is this moulding likely to be some
standard item that I can buy somewhere and cut to length, or do I have
to track down the door manufacturer (if still in business)? The house is
about 30 years old, and I assume that the doors are original.

Perce