Aviation Regulations Logo
§ 25.815
Width of aisle.
The passenger aisle width at any point between seats must equal or exceed the values in the following table:
Passenger seating capacity
Minimum passenger aisle width (inches)
Less than 25 in. from floor
25 in. and more from floor
10 or less
1 12
15
11 through 19
12
20
20 or more
15
20
1 A narrower width not less than 9 inches may be approved when substantiated by tests found necessary by the Administrator.
[Amdt. 25-15, 32 FR 13265, Sept. 20, 1967, as amended by Amdt. 25-38, 41 FR 55466, Dec. 20, 1976]