[Astroman (Andrew Wall)]

Originally Posted by gbeal

Thanks Asi. It helps that on the farm here there are miles of wooden posts.
I guess it "could" resonate a little, hence the suggestion of 8", rather than the smaller 6" or4". Just easier to work thats all.

You could always have multiple posts joined together, so instead of using one use 4 posts that are bolted together firmly. This should add a little more ridgity to the poles.