Cat Flap Extension© for thick and cavity walls

If you need to add a cat flap to a thick or cavity wall, you will need this extension kit to stop kitty from falling into the cavity.

You may have seen other smaller extensions for sale that cost over £5, but you need to buy 4 or 5 and link them costing you over £25!!!

The solid sheet is made from durable, flexible, waterproof High Impact Polystyrene (HIP) plastic - which is hard wearing and waterproof

Size: 50cm x 34.5cm x 1mm thick (large enough to fill the void and flexible enough to cut down with ordinary scissors) If your wall is thicker than 33cm (13inches) please contact me and I will arrange for a larger piece to be made (charges apply), measuring is strongly advised before purchase.

It will fit like a 'U' shape which is the strongest shape possible for this situation. No need for a 'ceiling' as you can stuff this area with paper, rags or wall insulation.

The instructions are included (pictured) and can be installed in a few minutes.

Works with any Cat Flap, as long as you have measured first (cat flap not included).

Please message me for any questions you may have.

Postage only to routine mainland UK. Please message for delivery options elsewhere.