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.
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