Pergola with 6X6 beams - strong enough?

[jeff norris 2011]

I am building a simple pergola that will have beams that span 12' in total and have knee braces reducing the span to 9'. I would like to use solid 6x6 cedar timbers for the beams. I will have 9' rafters that span 11' (with some over hang). The weight of the rafters should come in around 300lbs and each beam should be around 122lbs.

Below is pretty much the design. Before I visit my local engineer, wondering if you think 6x6 will be beefy enough.

fabulous-exterior-home-design-inspiration-expressing-gorgeous-pergola-roof-for-patio-combine-rav.jpg

[Lee Schierer]

I would think that a 6 x 6 should be adequate for the load and span. You can always check here Maximum Span Calculator or try the Sagulator, which says wit a total weight of 400 pounds you beam will sage less than 1/16" without the knee braces.

[Wayne Lomman]

Solid as. Your engineer will be happy. Cheers

[jeff norris 2011]

I ran it by an engineer I know by phone- he laughed (in a good way). I guess it is overkill for the design..

Permits department also said no permit needed.

[Carlos Alvarez]

The nearly-same pergolas at Sam's Club use 6x6 cedar. My best friend's neighbor has a similar one, also 6x6 (painted, so no idea what the wood is).