ยง 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]