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P a g e
1.10
HEADERS PREPARATION
We recommend a maximum header length of 12 feet for 2x6 headers and 16 feet for 2x8 headers. The recommended rafter
lengths are 12 feet for 2x6 rafters and 16 feet for 2x8 rafters. We further recommend that you allow for 18” of overhang
beyond the posts on each side for the headers and 18” overhang beyond the headers on each side for the rafters.
1.10.1
Header and Rafter Tail Designs Cutting
Visit www.
https://riooutdoors.com/rafter-tail-designs
to see our collection of Rafter Tail designs. Based on your cosmetic
preference and woodworking skill level, select a rafter tail design shape that you plan to cut yourself or you plan to outsource the
design cutting. You may have your own design that you wish to apply to the rafter tails. The possibilities for rafter tail designs are
endless, and a minor change in detail can add a dramatic flair to your pergola design. Be creative.
1.10.2
Rafter Tie Brackets Installation
For a dual header pergola system, rafter ties are required to be installed on both top headers on each side of the pergola. The
rafter ties are to be installed in an offset pattern between the two headers, as shown in the image, below. This offset pattern
helps prevent warping of both headers and further helps to stiffen the pergola structure and prevents swaying motion.
OUTER HEADER
INNER HEADER
NOTE THE OFFSET
MOUNTING PATTERN FOR
THE RAFTER TIE BRACKETS