Looking into starting a pole barn project. Just wandering what the pros and cons are to round poles (6"- 7") and 6x6 post. Why would you use pole instead of post ? Or vice-versa.
Kubota B26 TLB, Allis Chalmers D17 series IV, Kubota ZG-23 Mower, Kubota ZD 1211, Kawasaki Mule 610, Stihl 361, Stihl 045 AV Super, and a Stihl 660 Ported and tuned
Round poles are generally cheaper to buy. A square post with flat sides is easier to nail stringers, headers, braces, rat board, etc... on to, but a little more money.
Could be argued that round poles have more strength, because the surface wood hasn't been sawn away. Treating the sap wood is easier than the heart wood, so a pole will likely get better rot protection if the sapwood isn't sawn off.
But GeneD14 said it very well for any real important differences I know of.
What is your application? Include walls, or just siding?