Ok i don't know the exact size cage that my rabbits have but it is the perfect size for 2 rabbits. My dad said he would build me a bigger cage for them and that we would also make a little running area for them outside on the grass. I love my rabbits and I would never ever make there cage out of Cedar. If you don't know what cedar can do to a rabbit go to cage saftey and check out the things edar can do to a rabbit. Another problem making a cage is making sure it is animal proof. Like I said go to cage saftey and learn more from me about rabbits cage safteness in cages.