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4 Select next to Calculation rules:
Then…If you want to…
enter values for Straight Length and
Riser Count.
specify the overall linear length of
the stair
â– When Straight Length is set to
(automatic), the value is
calculated based on the tread
size and riser count.
â– When Straight Length is set to
(user-defined), the stair
length is equal to the dimen-
sion entered, and the other
three values are adjusted within
the code limits. If these values
fall outside the stair limits, an
error message is displayed.
â– When Riser Count is set to
(user-defined), the tread depth
is increased or decreased to ac-
commodate the stair.
enter a value for Riser Count.specify the total number of stair
risers
â– When Riser Count is set to
(automatic), the number of
risers is based on the overall
length and overall height of the
stair and the code limits spe-
cified on the Design Rules tab.
Changing the Dimensions of a Stair | 2173
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