Thanks Pete, for having the last reply on this (since you started this topic.) However, I am going ahead with the vycor wrap to prevent any concrete contact. This is the most economical/beneficial way to proceed.

Also, I want to point out that this is TREATED wood, .60 cca pine (most recommended for underground use,) structural 8x8 (nominal) treated pine that is going to support a widely used and recognized king post/strut truss design.

I realize that this forum is most familiar with the use of oak timber, thus untreated, and the only real test of a total design..........is time. I do not want to build a poor structure, however I feel that the comments presented are from professional viewpoint that doesn't represent any tolerance for change or ingenuity. Again, the only real test of a design is time.

My hope is that this simple structure will last for ages. Thank you all for your input.

Regards, Tim