Wow, the stall mats I'm thinking of weigh 100lbs each. We used them in the livestock stalls when my daughter was in FFA. It would be a major deal if you needed to move them to wash them. They can still be chewed on by a determined rabbit. We had the small interlocking rubber mats in our French Lop's cage. He never bothered it while in my daughter's apt, but tore it up when she kept him at our house over the summer.