"... any structure designed or adapted for human habitation which is capable of being moved from one place to another (whether by being towed, or by being transported on a motor vehicle or trailer) and any motor vehicle so designed or adapted but does not include:
a) Any railway rolling stock which is for the time being on rails forming part of a railway system, or;
b) Any tent."
"A structure designed or adapted for human habitation which:
a) is composed of not more than two sections separately constructed and designed to be assembled on a site by means of bolts, clamps or other devices,
b) is, when assembled, physically capable of being moved by road from one place to another (whether by being towed, or by being transported on a motor vehicle or trailer), shall not be treated as not being (or not having been) a caravan within the meaning of Part 1 of the Caravan Sites and Control of Development Act 1960 by reason only that it cannot lawfully be moved on a highway when assembled."
(a) length (exclusive of any drawbar): 60 feet (18.288 meters);
(b) width: 20 feet (6.096 meters);
(c) overall height of living accommodation (measured internally from the floor at the lowest level to the ceiling at the highest level): 10 feet (3.048 meters)
(a) length (exclusive of drawbar): 20.00 meters (65.616 feet);
(b) width: 6.80 meters (22.309 feet);
(c) height: 3.05 meters (10.006 feet).