Metal Studs
(spaced at 12, 16, 20 or 24 inches)
If anchoring directly to metal studs, studs
must be minimum 18 gauge. Use at least four
(one in each corner) #14 sheet metal screws
with washers, of sufficient length to
penetrate at least 3 threads beyond the stud.
Metal Studs
(spaced at 12, 16, 20 or 24 inches)
If anchoring to backing between metal studs,
studs must be minimum 25 gauge, and
backing must be minimum 22 gauge. Use at
least eight (two in each corner) #14 sheet
metal screws with washers, of sufficient
length to penetrate at least 3 threads beyond
the backing.
Metal Studs
(spaced at 12, 16, 20 or 24 inches)
If anchoring to backing between metal studs
in an outdoor high wind area, studs must be
minimum 25 gauge, and backing must be
minimum 22 gauge. Use at least twelve
(three in each corner) #14 sheet metal screws
with washers, of sufficient length to
penetrate at least 3 threads beyond the
backing.
Concrete or Masonry
Minimum strength must be 2500 PSI
(concrete) or 1500 PSI (masonry).
Use at least four (one in each corner, in any
available anchor slot) 1/4-inch fasteners with
washers, of sufficient length for at least 1-1/2
in (38 mm) embedment into the material.
Ensure that all fasteners are at least 1-1/2 in
(38 mm) away from the edges of masonry
blocks or bricks.
Channel Strut (Unistrut)
Struts must be minimum 1-5/8 in x 1-5/8 in,
12 gauge. If mounting on wood studs, attach
the strut to at least three studs, using at least
one 1/4-inch wood screw with washer per
stud, of sufficient length for at least 2-1/2 in
embedment into the studs.
If mounting on metal studs, attach the strut to
at least three studs, using at least two #14
sheet metal screws with washers per stud, of
sufficient length to penetrate at least 3
threads beyond the studs.
To attach the bracket to the struts, use at least
four (one in each corner) 1/4-inch hex head
screws with washers and strut nuts.
Step 3: aPower
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