Hi everyone. Well I have my slab poured for my 35x20 soon to be screened in porch for my babies (not for me ...isn't that sad! :-) Anyways it was going to cost 100$ extra just for them to install 2 doggie doors for me so we have decided to do it ourselves. Please let me know what brand some of you are using. I don't want to install something my babies won't use or some junk I will have to replace. They range in weight from 2-5lbs so it would need to be a small door I guess. Thanks so much!!!