Places of Public Entertainment.
(2) Such staircases shall be without winders, shall be in flights of not more than sixteen or less than three steps each, shall not have more than two successive flights without a turn, and if there be more than twelve steps in a flight, shall not have more than one flight without a turn.
(3) The several flights of steps shall be properly supported and enclosed to the satisfaction of the building authority and the licensing authority.
(4) Staircases, unless constructed of reinforced concrete, shall have solid square (as distinguished from spandrel) steps.
(5) The landings, unless constructed of reinforced concrete, shall be at least 6 inches thick, and the depth of the landing between the flights shall not be less than the width of the flight.
(6) The treads shall be not less than 11 inches wide and the risers not more than 6 inches high. The treads and risers of each flight shall be of uniform width and height. Each step shall lap at least one inch over the back edge of the step below.
(7) Every staircase and the roof thereof shall be of such fire-resisting material and construction as may be approved by the building authority and the licensing authority.
(8) A continuous handrail shall be fixed on each side of all steps and landings at a height of 2 feet 9 inches above the steps or landings. The rail shall be supported by strong metal brackets built into the wall and shall not project more than 3 inches. Where the flight of steps returns the newel wall shall be chased so as to allow the handrail to turn without projecting over the landing.
(9) Any other projections from the walls of a staircase shall be at least 6 feet 9 inches above the steps or landings and any recesses shall be defended.
[CAP. 172
23. (1) All doors used by the public as exit doors shall, unless otherwise agreed in writing by the building authority and the licensing authority, be hung in two folds,
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Places of Public Entertainment.
(2) Such staircases shall be without winders, shail be in flights of not more than sixteen or less than three steps each, shall not have more than two successive flights with- out a turn, and if there be more than twelve steps in a flight, shall not have more than one flight without a turn.
(3) The several flights of steps shall be properly sup- ported and enclosed to the satisfaction of the building authority and the licensing authority.
(4) Staircases, unless constructed of reinforced con- crete, shall have solid square (as distinguished from spandrel) steps.
(5) The landings, unless constructed of reinforced con- crete, shall be at least 6 inches thick, and the depth of the landing between the flights shall not be less than the width of the flight.
(6) The treads shall be not less than 11 inches wide and the risers not more than 6 inches high. The treads and risers of each flight shall be of uniform width and height. Each step shall lap at least one inch over the back edge of the step below.
(7) Every staircase and the roof thereof shall be of such fire-resisting material and construction as may be approved by the building authority and the licensing authority.
(8) A continuous handrail shall be fixed on each side of all steps and landings at a height of 2 feet 9 inches above the steps or landings. The rail shall be supported by strong metal brackets built into the wall and shall not pro- ject more than 3 inches. Where the flight of steps returns the newel wall shall be chased so as to allow the handrail to turn without projecting over the landing.
(9) Any other projections from the walls of a staircase shall be at least 6 feet 9 inches above the steps or landings and any recesses shall be defended.
[CAP. 172
23. (1) All doors used by the public as exit doors Doors and shall, unless otherwise agreed in writing by the building fastenings. authority and the licensing authority, be hung in two folds,
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