Div. B › Part 9 › 9.9 › 9.9.2 — Types and Purpose of Exits

9.9.2.5 — Front Edge of Stair Treads

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(1) Except for curved stairs, the front edge of stair treads in exits and access to exits shall be at right angles to the direction of exit travel.

OBC Definitions

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access to exit

means that part of a means of egress within a floor area that provides access to an exit serving the floor area.

exit

means that part of a means of egress, including doorways, that leads from the floor area it serves to a separate building, an open public thoroughfare or an exterior open space protected from fire exposure from the building and having access to an open public thoroughfare.

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