How to make inner mesh door on playhouse

[kermitswife]

Hi there,
I've bought a play/Wendy house for the guinea pigs. Need to paint, build and insulate and feeling mostly confident on that from threads on here and pictures online.

But lots of places talk about a second mesh door for ventilation. I want one of these but can't understand how you hang it/attach without interfering with hinge mechanism of existing door.

If you have one can you share any images of door, hanging and living mechanism

 

[Piggies&buns]

Below are a collection of pictures of mine. Hope that helps

 

[kermitswife]

It does thanks, so what I suspected before but wasn't sure about was that outer door would open outwards and over for swing inside. Your photos really help see how that works in practice. I love your multi door set up so no escapees out the bottom but think that will be beyond my DIY skills!