column spacing for pergola

smiley64July 9, 2010

Our pergola will be 10' wide by 16' long. The question is: How do I calculate the column size? The plan calls for six total columns. Three on each of the 16' legs equalling an 8' span between each column. I think architechural 6x6's will do the trick. My wife feels the 6x6 are too bulky looking, so.....can 4x4 or 5x5 be substituted?

Thanks in advance

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Oooops, forgot to mention, the stringers and purlins will be 2x6 PT.

    Bookmark   July 9, 2010 at 7:20PM
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