A
wide-body aircraft is a
jet airliner having a
fuselage wide enough to accommodate two passenger
aisles, also known as
twin-aisle aircraft, with seven or more seats abreast. The typical
fuselage diameter is . In the typical wide-body economy cabin,
passengers are seated seven to ten abreast, allowing a total capacity of 200 to 850 passengers. The largest wide-body aircraft are over wide, and can accommodate up to eleven passengers abreast in high-density configurations.