Thanks, I'm going to build 2nd floor.
Thanks,I'm going to build 2nd floorThat is much too small for even one piggy, unfortunately. Here's the forum's helpful cage size guide for you:
Cage Size Guide
Two girls would need at least 75 x 152cm or so (a 2x4 grid C&C cage) and two males would need at least a 2x5 grid C&C or roughly 75 x 210cm. Sorry if my measurements are strange, I'm converting from inches.
I personally have a 2x6 grid C&C for my two boars, and have already bought more grids and correx to add on another 2x3 grid section at least, as I've found guinea pigs to be very active animals who need a ton of space to roam.
The more room you can possibly give guinea pigs, the better, but if you can't swing the minimum cage sizes then you probably shouldn't have guinea pigs until you can.