How many lavatories are on the 787-9?

How many lavatories are on the 787-9?

• A. 8 total
• B. 6
• C. 10
• D. 12

Answer: (A)

Eight lavatories are typically fitted on the 787-9 because the cabin layout is designed to balance passenger access to restrooms with seating, galley, and aisle space. Boeing’s standard long-haul configuration for the 787-9 reserves space for eight bathrooms, giving reasonable accessibility for passengers across the cabin without compromising seat count or comfort. Placing fewer would increase restroom queues on busy flights, while more would eat into cabin space and reduce seating or storage area. So eight matches the aircraft’s overall design constraints and typical operating layouts.

Eight lavatories are typically fitted on the 787-9 because the cabin layout is designed to balance passenger access to restrooms with seating, galley, and aisle space. Boeing’s standard long-haul configuration for the 787-9 reserves space for eight bathrooms, giving reasonable accessibility for passengers across the cabin without compromising seat count or comfort. Placing fewer would increase restroom queues on busy flights, while more would eat into cabin space and reduce seating or storage area. So eight matches the aircraft’s overall design constraints and typical operating layouts.