I finally got around to expanding teh brats cage! I still made use of the original cage since it has the bottom for litter. I used 14x14
cube grids & coroplast to expand. It is now TWICE the size it was!!

On the bottom left the grid swings oper like a door to store food, supplies, etc.
Where you see the big open hole the grids swing up to close the cage:
the bottom right side is open for them to play underwhen they are out & running.
There are 2 access doors on the left side of the original cage that they can use to go in & out of the new part. Currently I have those doors closed though because Tigger & Mojo can both get their heads through the squares with paranoys me that they will either get out or get their head stuck. So I am going to get some screen & line the outside of the cage with it so they can't do that anymore.