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BEFORE INSTALLATION
IMPORTANT
Before starting installation, calculate the exact rise height of each step of the staircase. This is done
by measuring the distance from the lower floor to the upstairs floor measuring vertically along the wall
and then dividing by the number of rises. The number of rises is the same as the number stair treads
plus 1. The plus 1 is to consider distance of the last step of the staircase to the upstairs floor.
B =
Example: Top edge of floor to top edge of next floor: 102", 12 rises (11 steps + 1).
102" divided by 12 = 8 1/2". This is the rise height per step.
The opening in the ceiling should not be less than 51 1/4" for straight flights of steps.
This is to ensure that walking up the steps is a comfortable experience.
Recommended rise height: 7 5/16" to 8 1/16"
Maximum rise height: 7 5/16" to 8 1/16"
No. of rises
12
13
INSTALLATION
Top step element
A =
Measure (from the top edge of the top floor) the calculated rise height plus the thickness of one step
(e.g. step 1 3/8" thick + calculated rise height 8 1/2" = 9 11/16").
This is the installation height for the top edge of the step support.
Please look at page 5 - B: Is the calculated rise height e.g. 8 1/2".
It's important to support the staircase temporarily during installation to prevent the weight of the stairs
to skew the riser measurements before fastening the lowest column support to the floor - please see
page 6.
NOTICE: VERY IMPORTANT - Staircase is to be assembled from the top floor down.
NOTICE: VERY IMPORTANT - WHEN MOUNTING OUTSIDE BANISTER
If the staircase is mounted with a turn, please note that the distance between the banister
elements may vary from 5 5/16" to 13 9/16" when mounting the outside banister.
4
No. of steps:
One less than
no. of rises
11
12
R1-99678-03 / 10-03-2011
X: Distance from bottom
step tread front to wall
62"
67 3/8"
X
Y
Y: Vertical measurement of
wall - lower floor to upper
floor
87 1/2" – 106 1/4"
94 1/2" – 115"
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