The width of a stairway shall be taken as the length of the treads between stringers. The width of a doorway shall be taken as the width of the door.
N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 45-2.12
The width of a stairway shall be taken as the length of the treads between stringers. The width of a doorway shall be taken as the width of the door.
N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 45-2.12