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STAIR LAYOUT EXAMPLES
Stair Layout Definitions
y (Rise): The “floor-to-floor” or “landing-to-landing” Rise is the actual
vertical Rise required for building a stairway after the finish flooring
has been installed.
x (Run): The Run of a
stairway is the amount of horizontal space
required. The total Run of a stairway is equal to the width of each
Tread multiplied by the number of Treads.
Desired Riser Height: The desired Riser height is the amount of
vertical Rise you allow for each individual Riser in the stairway. This
is sometimes dictated by local code.
Actual Riser Height: The actual height of each Riser is measured
from the top of one Tread to the top of the next Tread.
94 — SHEET METAL/HVAC PRO CALC
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