The melamine cages I used to use, which I built myself, looked exactly like that! Including the fact that the doors on the bottom cages hinged upward! Great minds think alike I guess! You even cut the door opening out of melamine exactly like I used to on the doors, and screwed on Plexiglas on the back! Works like a charm doesn't it? I'll bet you have a raised bottom with heat under it too right? They work pretty good too I'll bet.
Congratulations on the babies! I know how thrilling it is to have those fresh babies! I never get over it! I am always bringing down everyone in the family to check out our new babies. It's great fun and sometimes the family actually pretends like they are excited about the babies like I am too! That makes it even more fun!
Great looking melamine cages and congrats again on the babies!