Our Cage is 12.29 sq ft. Would this be big enough for 4 females? We have 3 now and it always seems 2 go together and one is left out. One is definitely the dominant one. I Am hoping that calms down a little and they all get along.
The minimum according to the cage sizing guide is 13 feet for four girls but more is recommended. You are close and that looks like a nice cage that you built. The little caste is cute. Someone else will have to tell you if it would be ok.
It's about the right size. Just don't clutter it up with a lot of furniture.
But there's absolutely no guarantee that you'll wind up with them pairing off two and two. You may have one and three, or four, or one and one and one and one.