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41
HOW TO INSTALL DECKING
LOCATION AND INSTALLATION OF SURFACE MOUNT POST – DECKING/
CONTINUED
Line Post Installation
3. Install two 2
"
x 8
"
(5.1 cm x 20.3 cm) cross bracing
frames in between joists at 7-1/4
"
(18.4 cm). Attach a
total of twelve 3
"
(7.6 cm) pressure-treated compatible
screws (not provided).
4. Install two 2
"
x 8
"
(5.1 cm x 20.3 cm) boards as
blocking under post location. Securely attach
blocking using a total of twenty-four 3
"
(7.6 cm)
pressure-treated compatible screws (not provided).
5. NOTE: RIM JOIST REMOVED TO SHOW PROPER
ATTACHMENT OF HARDWARE.
Insert the (2)
stainless steel barrier
strips under the
mounting bolt holes.
Use composite shims
or similar material
(not provided) if posts
are not plumb. Ensure
that post is placed
on decking surface
so that it clears the
rim joist and there
is enough clearance
on the underside
blocking for the back
plate to be installed.
Attach posts using four 3/8" x 6" (1 cm x 15.2 cm)
hex cap bolts, washers, and nuts, along with aluminum
back plate on underside of blocking. If the project
requires IRC compliance, this back plate MUST
be installed under the decking to ensure this will
meet code compliance. Reference SKU part number
ALPOSTHWDECK for required hardware and aluminum
plate. (Consult local code offi cial for more information
on IRC Compliance.)
Install Guide Blocks
NOTE: Pre-drilling is not required but is optional for
attachment of guide blocks to post. Use a drill bit slightly
smaller in size than that of screw being installed.
6. Place or rest bottom aluminum guide block on
bottom of post. Place guide on post so that notch is
on a side that does not require railing to be attached.
7. Attach bottom guide block using one 10 x 1” self-
tapping screw (provided) in notch to lock guide block
onto post.
8. Location of top guide block will vary slightly based on
type and height of railing being installed. Determine
this measurement and place top guide block in
location where top bracket for desired railing would
be approximately on center of the top railing bracket
location.
9. Attach top guide block using one 10 x 1” self-tapping
screw (provided) in notch to lock guide block onto
post.
4
Blocking
boards
5
barrierbarrier
7-1/4
"
(18.4 cm)
7-1/4"
(18.4 cm)
3
Cross bracing
frame
Cross bracing
frame
6
notch
8
notch
7
9
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