If you only run the mesh on the top of the sides instead of further down like you have them as strips of around 2-4" but about the same length as you have yours would it still adequately ventilate?

I'm wondering because I'd prefer not to have to worry about kick out/them chewing out. I also would like to be able to stack them too. I've been debating with myself whether running the mesh on the lid or on the sides would be best, but if I did it high enough on the sides they should have a low likelihood of getting up there and chewing out as well as allowing me to stack the bins.