What type of mesh for shed windows/doors?

As per the topic, I'm just wondering what type of bunny safe/bunny proof mesh people use for covering shed windows and on the "inner" shed doors?

I use hardware cloth, it's very strong and fox proof. I use it on my duck pen but I forget what gauge it is, might be 16. Just make sure whatever mesh you use that it's a strong enough gauge

The best mesh to use is galvanised weld mesh of 1 x 1/2inch or smaller and at least 19g thickness (16g is thicker than 19g). Personally I found it quite hard to get 1/2 x 1/2 inch 16g last time I looked, and it was very expensive so I've always gone for either 1/2 x 1/2 inch 19g mesh or 1 x 1/2 inch 16g mesh. Both of them offer great protection. You can find rolls easily on eBay