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 |
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Code of Federal Regulations
457
|
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| 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. | ||