If using 68 Outback columns and fixing into the ground, dig the
holes to the specified size and place a brick in the bottom of the hole
(figure 13.1). At each post location, measure from the underside of
the beam to the top of the brick and cut the columns to length.
Check to ensure all columns are plumb.
Reinforcing the 68 Outback Column
If 50 x 50mm square hollow sections (SHS) have been supplied,
the fluted 68 Outback columns will need to be reinforced. Cut
the 50mm SHS 75mm shorter than the column and slide into the
column. Ensure the section is aligned with the base of the column
and fix using two 12 x 35 hex head screws per side, at both ends,
as detailed in figure 13.0.
Post Brackets
Fasten post brackets to the underside of beams at the relevent
location with two 10x25 counter sunk self drilling screws either side.
Slide the top of the 68 Outback column over the post bracket until
it is flush with the underside of the valley beam. (Note: it may be
necessary to lift the fascia beam slightly to slide the column over the
post bracket). The unfluted faces of the column should be aligned
with each face of the post to beam bracket. Fasten the 68 Outback
column to the post bracket using two 12x20 hex head screws either
side as shown in figure 13.2.
Use construction props or bracing to hold columns in position, but
do not concrete in place at this stage.
Figure 12.2
Figure 12.4
Figure 12.3
Figure 13.0
68 OUTBACK COLUMNS
ridge beam
ridge rafter
bracket
gable rafter
12 x 20 hex head screw
(at 500mm centres)
through angled back
channel into ridge beam
angled back channel
angled back channel
level with gable
rafter
12 x 20 hex head self drilling
screws at 500mm centres
along double flange of beam
screw through back
channel and ridge
rafter bracket
ridge beam
ridge rafter
bracket
gable rafter
12 x 20 hex head
screw on both sides
into ridge beam
ridge rafter
bracket
600mm of ridge overhang
allowed. Run angled back
channel to the end of the
overhanging ridge beam
68 Outback column
50x50x3mm SHS
30mm
68mm
34mm
two 12x35mm self drilling
screws per side
section B- B
68mm
TOP
B
B
