18' of plywood outside and 30-something feet long inside.. not including metho stove, sink and porta-potti. A bit like Dr Who's Tardis...
..and just wide enough to fit into the carport with 6" either side.
From RFC 1925: "(3) With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead."