I have had my posts in for about 12 years. Treated wood 6X6’s. I had expected them to last longer than this, but my soil is very wet. A few have snapped off at the base. I have woven wire attached, so it is not an emergency to replace, but I need to do it. I have driven metal sister posts on a few and lashed them to the broken wooden post with baling twine. So…is it unusual for the posts to have died in 12 years? What is the best way to go about replacing them. How do you remove a stump. When we put them in, our soil was so rocky that we used a back hoe to dig the holes, put in the posts and back-filled with stone dust. Of course, with the woven wire up (and really no place else to put the horses, and the other side of the fence obscured by trees, a back hoe can no longer get to the posts, so we need to do this by hand.
Yes, we should have considered that this would happen, but we were (are?) stupid.