§ 29.815 Main aisle width.

The main passenger aisle width between seats must equal or exceed the values in the following table:

Passenger seating capacity Minimum main passenger aisle width
Less than 25 inches from floor (inches) 25 Inches and more from floor (inches)
10 or less1215
11 through 191220
20 or more1520

1 A narrower width not less than 9 inches may be approved when substantiated by tests found necessary by the Administrator.

[Doc. No. 5084, 29 FR 16150, Dec. 3, 1964, as amended by Amdt. 29-12, 41 FR 55472, Dec. 20, 1976]