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The Designer Series & P7 Industrial
1.4 requirements before installation
mounting -
The door is designed to be mounted behind the opening.
obstructions
- Ensure that the surface where the door will be fitted is smooth, and the area behind the opening is
free from any protrusions.
structural suitability -
level and plumb
- The door must be installed in an absolutely level position, if opening is not level and square,
appearance and/or sideroom requirements will be affected. The floor should be level or recessed across the
opening to avoid gaps.
1.4.1 measurements
(refer to appendix for rear torsion allowances)
opening width
- As the door overlaps each side by
30mm or more, the door should be 60mm wider than the
opening. A wider door can be fitted as long as additional
sideroom and fixing is available. See Fig 1.4.1.
opening height
- The door will fit any opening height
up to the marked door size.
sideroom
- A minimum of 120mm of sideroom is required
over and above door width and should extend above
the head to allow for bracket fixing. Rear torsion requires
150mm.
headroom
- depending on the cable drums used,
a minimum of 390mm (440mm for larger doors) of
headroom is required.
backroom
- as the door extends into the garage when
opening a minimum of the door height + 300mm for tracks
is required (+ 1000mm if opener fitted).
level datum -
use a water or lazer level to mark a datum
line on both sides approx. 1.5m from the floor. Use this line
to compare the distance on each side to the opening
height to determine if the opening is level.
1.4.2 initial calculations
a) Open the package of door panels and locate the label on the end of the door panel.
b) The label lists the Sales No: XXXXXX, then underneath DH: X,XXXmm (door height).
c) All the vertical track lengths are precut in the factory. However to calculate the vertical track length:
door height
tip
d) Calculate the horizontal track brace position:
Refer to substrate detail information on the
tip
positions.
1.5 tools
It is recommended that this door is installed by a professional door installer using a professional and specialised
tool kit.
installation instructions
™
Ensure the opening is strong enough to support the door. If unsure, consult a builder.
-
(standard 127mm, low headroom 275mm)
(BTRK 242mm)
HEADROOM
LEVEL DATUM
HEIGHT
=
for recommended brace
B&D website
6
BACKROOM
WIDTH
Fig: 1.4.1
vertical track length
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