"cca"; better watch it close; i built a 30x30 pen in 1988; using 6inch dia, 8 ft cca treated poles for the corner post; i put a young jack in there in 97 while i was getting him use to me, he was tame, just didn't come when called; well, the next morning, he was no where to be found, till i went to the neighbors, who has a biggggg gelding, oh yes, i forgot to mention, this was a small standard jack, i'm 5'9''; an he came up to just above my waist; anyway, to make a long story short; it cost me some pretty good $$$ to have the bigggg gelding mended...jacks don't like geldings; and geldings are scared to death of jacks; the race was on, and the gelding hurt his foot trying to out run the jack.. 2 out of 4 of the cca treated post were just shells; the jack was probably scratching his ___ and the post fell over, so he meandered off an found some trouble, for me, to get into; i gently pushed on the other post, and one just pushed down..the others are solid as a rock; oh yes did i mention that the 20 year warranty is bs...i guess that depends on where you buy them..but my dealer wouldn't replace the rotted ones..if i buy cca post again, i'll soak the base in a diesel/oil mix before use...oh yes, till the gelding hurt his foot, it was kinda funny to watch that giant of a horse running from a little jack.., and the jack never did catch him..
heehaw