What size cage for a rabbit?

[Tulia&Susie]

I was trying to look around the forum a little bit and couldn't totally find what I was looking for. My sister has an Holland Lop and I'm going to build a bigger cage for it and I was wondering what would be a good size. I've heard a 2x3 base and then like doing a double on top. Would that be ok? Well thanks for helping.

[VoodooJoint]

I prefer a 2x4, with at least 2 stories, especially if the rabbit isn't a full time house rabbit. If the rabbit will be mostly confined to the cage then try to go even bigger.

[Myspoiltpiggies]

I think at least a 2x3 base. My rabbit only had a 2x2 but he's free range.. It's really just a bed.

[Tulia&Susie]

Ok thanks. It's(like a mentioned) my sisters so I'm going to really try to get her maybe her to pay some then I can make it. Thanks for the advice.