https://output.jsbin.com/hutojapivo/
https://articlescad.com/using-....a-cat-flap-in-bifold
uPVC doors are a popular choice for homes. They are sturdy and easy to maintain. However, they may be a hassle to install with a cat flap. A replacement upvc door with a cat flap is often the best option. It is easy to put in and is less expensive than a full replacement door. Safety Upvc panels with cat flaps allow your pet to enter or leave your home without opening the door. These door panels come in a variety of styles that can be adapted to fit any existing door frame. T