Moveable floor in boot is a false floor which gives a separate compartment about 5 inches deep below the actuall boot. Not big enough for a body but big enough for about 2000 fags and a big bag of charlie! I use mine for keeping all of that crap in that is normally in your boot in, blanket, air compressor, etc, so boot is usually empty. You can take the false floor out to just give a single bigger boot