http://brewwiki.win/wiki/Post:....Fitting_Cat_Flap_in_
Cat flaps are a great way to let your pet move around as it pleases. You can also choose an enclosed cat flap to prevent other animals and cats from entering your home. You can put the cat flap on bifold doors, so long as the door is composed of toughened glass and the frame is not rotten or damaged. The procedure is similar to installing one on a wooden door or uPVC. Easy to install Add a cat flap on your bifold door, allowing your pet to go in and out of the house without you having to open or close the door. This can