According to SeatGuru, there are five layout versions of the Airbus A340 600 airplane as of 2015, consisting of first class, business class and economy class. According to Airbus, the cabin has an overall fuselage length of 75.36 meters, with a seating capacity of around 350 to 475 passengers.
The Airbus A340 600 is currently the longest airliner in use. First class and business class are near the front of the airliner, while economy class is toward the back. First class seats feature 27-inch cushions with four seats in each row. Business class seats feature 22-inch cushions with six seats in each row.
The economy class section features an eight-abreast seating layout, allowing each person to be somewhat near an aisle. First and business classes have one or two seats in each section of each row, allowing each person direct aisle access. First and business classes are equipped with 110-volt AC power ports. There are crew seats, lavatories, and galley kitchens throughout the upper deck. The economy class lavatories are located on the lower deck of all A340 600 versions. Some versions include galley kitchens on the lower deck as well. All seats have personal entertainment systems with on-demand audio-visual features located in the seat backs.