N per Max NDecks Layout Width Height Aircraft Name XSection Abreast ------------------------------------------------------------ 2 2 1 11 64 60 Lear25 2 2 1 11 65 70 DHC6 2 2 1 11 94 94 GIV 4 4 1 22 110 101 DHC7 4 4 1 22 104 104 Dash8-300 4 4 1 22 113 113 Concorde 5 5 1 23 134 134 BAC111 5 5 1 23 130 130 F100 5 5 1 23 131.5 143 MD80/717 6 6 1 33 148 - 737/757 6 6 1 33 147 - DC8 6 6 1 33 140 140 BAE146 6 6 1 33 155.5 - A320 7 7 1 232 198 217 767 7 7 1 232 186 - 7J7 8 8 1 242 222 - A300/A310/A330/A340 9 9 1 252 237 237 MD11 9 9 1 252 235 235 L1011 9 9 1 252 244 244 777 16 9 2 333/232 266 336 A3xx Study (1994) 16 10 2 343/33 256 308 747 18 10 2 343/242 266 336 A380 Coach 19 11 2 353/242 - - MD-12 (study) 19 11 2 2342/242 307 373 Boeing NLA (study) 26 10 3 343/343/33 261 403 A 3-deck guess 29 12 3 343/363/232 335 403 Based on Douglas Study