Step 2:
With the second assembled rafter laying flat as shown, connect (3) 1" purlins onto the ends
of the 3-way couplers.
Important:
Position the holes in the purlins so they face toward the inside of the arch.
Step 3:
Secure these pipes with Tek screws through the predrilled holes into the couplers.
Step 4:
Stand up the second rafter and connect the purlins to the couplers on the first rafter as
shown below.
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