9.8.6.3.Dimensions of Landings

(See Note A-3.4.6.4.) (See also Articles 9.9.6.1. and 9.9.6.6. regarding landings in exits) (1) Except as provided in Sentences (2) to (7), landings shall be at least as wide and as long as the width of the stair or ramp in which they occur. (2) Where the landing in a stairway or ramp does not turn or turns less than 90°, the length of the landing need not be more than the lesser of (a) the required width of the stair or ramp, or (b) 1 100 mm. (3) The length of a landing shall be measured perpendicular to the nosings of adjacent steps or to the end of the ramp, at a distance equal to half the length required in Sentence (2) from the narrow edge of the landing. (4) Where stair flights or ramps of different widths adjoin a single landing, the minimum width of the landing shall be (a) where one or more of the stair or ramp widths do not exceed their respective required widths, not less than the greater required stair or ramp width, or (b) where all of the widths of the stairs or ramps exceed their respective required widths, not less than the lesser actual stair or ramp width. (5) Where a door swings toward a stair, the full arc of the swing shall be over the landing. (6) The slope of landings shall not exceed 1 in 50. (7) Where a doorway or stairway opens onto the side of a ramp, the landing shall extend for a distance of not less than 300 mm on either side of the doorway or stairway, except on a side abutting an end wall.