The plan is to remove the leaded glazing bars & glass panes from a Crittall
(steel framed) internal door and replace with a single sheet of clear
material.
This small door, 55W x135H cm approx, leads from kitchen to utility room and
from there to garden. It is also the dogs pathway to garden.
Existing glazing is puttied.
The dogs scratching has damaged the lead glazing bars and the entire glazing
is becoming rickety. The door is in constant use and is becoming very flexy.
It dates back to 1919 although the utility room is an extension added about
35 years ago.
I'm sure that quite soon the glazed part of the door will fall to bits.

I could use safety glass but don't really want to because of the weight &
cost.
A preference would be some kind of plastic sheet.
Acrylic/polycarbonate/makrolon etc but I don't know what else might be
available.
The intention would be to set this sheet in a bead of silicone and also bolt
through to retain integrity of the frame.
The frame can easily accept something of 10mm in thickness and there is
sufficient room within the frame for bolts/nuts.
However, whatever material is used it will be bashed and scratched by dogs,
cats and the V occasional goat

Any thoughts please?

Many thanks and good wishes to all.

N.