On 19 May, 10:17, Lurch wrote:
On 18 May 2007 17:46:30 -0700, 405 TD Estate
mused:

I had a nightmare doing the cat flap and now would like to put a
larger letterbox in - there must be an easy way - how!

Jigsaw.
--
Regards,
Stuart.

Tried that - the plastic vibrates too much then cracks - the thin
plastic generally detaches from the foam core.