Yes, I've read 2 ft minimum on most sites, but a lot of the more experienced people on here say that it's 2 ft, AFTER all of the accessories are added, primarily the wheel and igloo/hidey space. Those two things seem to take up quite a bit of space, so just 2 ft square really isn't enough after they're added. So the bare minimum recommended would really be about 3-4 square feet.