Deck Superstore Rough-Sawn Pergola System Instrukcja instalacji - Strona 10
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Shade Purlins
10
Attach Shade Purlins with a 12" overhang on
each side. It helps to measure, calculate
spacing, and mark the Shade Purlin
locations on the Outer Rafters.It also
helps to pre-drill and pre-load the
Shade Purlins with 5" screws on
the ground before installation.
Purlins are usually spaced 8" OC.
5" Construction Screw
per Purlin/Rafter connection
You can put fewer screws as long as the
purlins are secured at each end and
staggered at least at every-other rafter.
Be sure to calculate, measure out,
and then mark your spacing so it
looks even on both end of
the rafters.