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Installation
Critical dimensions when
constructing a new cavity wall
The ALF100SM mounts in-wall, in the
space between two nominal 100mm (4”)
studs, placed on 400mm (16”) stud-wall
centres.
The depth of the ALF100SM is 88mm
(3
7
/
16
”) so ensure that the cavity depth
from the front of the studs is equal to or
greater than this minimum.
The drawing below shows the critical
stud spacing dimensions of 355mm (14”)
to 380mm (15”) when constructing a
stud wall where the ALF100SM will be
installed.
380mm
355mm
to
>88mm
(14")
(15")
(3
/ “)
7 16
NOTE: The fixing centre width is
389mm (15
5
/
16
”). Following the
critical stud spacing dimensions
will ensure that there is enough
stud face available to make a
secure fixing.
389mm (15 / “)
5
16