To the side of my door is a half height uPVC panel. I would like to remove this so I can find out how thick it is to get a replacement panel to fit a cat flap to. I've tried to see if I can un-pop the side strips but can't see how to. I can't even get a knife blade between the two bits of plastic. I am able to slide a screw-driver between the panel and rubber grommet.
Below are a couple of pics showing the panel
Cheers for any advise
Below are a couple of pics showing the panel
Cheers for any advise