RoofBunk Roamer: The interior of your RoofBunk Roamer is about as wide as a standard sized double bed at 137cm (4ft 6), long enough to sleep someone who is about 6ft 10 inches tall (208cm) and has a high enough ceiling for the tallest people you know to sit up in at 98cm high (3ft 3). The exterior while open, is 140cm wide (4ft 7), 210cm long (6ft 11) and 100cm high/tall (3ft 3). When closed, it's 140cm wide (4ft 7), 210cm long (6ft 11) and 27cm high/tall (11 inches). RoofBunk Explorer: The interior of your RoofBunk Explorer is about as wide as a standard sized double bed at 140cm (4ft 7), 240cm long (7ft 10) and has a high enough ceiling for the tallest people you know to sit up in at 130cm high (4ft 3). On top of this, you get another 70cm x 140cm of space outside with the canopy at the entrance and even more under the overhanging floor. The exterior when open in total is around 142cm wide (4ft 8), 313cm long (10ft 3) and 132cm tall (4ft 4). When closed, it's 125cm wide (4ft 1), 143cm long (4ft 8) and 25cm high/tall (10 inches).