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Porches & Decks

Pergola beam size

9 years ago

I'm planning a new pergola over my concrete patio. The 6"X6" posts must be 14' apart to span the concrete patio. I'm trying to determine the size of the beam(s) to span this 14' span. Obviously I want a beam that will safely support the 2X6 rafters, and not sag over time. Will 2 2"X10"s bolted to each side of the posts be sufficient for this design? If not, any suggestions?

Comment (1)

Charlie
9 years ago
I recently built a pergola pictured here and used 6X6 posts and 2 2X12s bolted together for the beams. It works well and if shaped like mine looks good also. My kiwis are now starting to run over the top of the pergola.
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