In message , Angela
writes
I hope someone can give me some advice if any of you have done this.

Before I have always had a cat flap in a door but now I have a new house and
the back door is a large double glazed door which would just cost me to much
to have a flap put in. A builder friend has offered to put one in the wall
for me. Has anyone any experience of doing this? I have a couple
questions:

1. As it's a cavity wall do cats have a problem going through a tunnel?

This doesn't appear to have been discussed for several years

Yes, they will go through a tunnel, but it might need training. You
might need to keep the cat flap open for a couple of weeks while it gets
used to the concept.

Mine has no problems going through such a tunnel, although, being a cat,
it will play the game of trying to get you to open the door just for the
sake of it


--
geoff