If they use Bois d'Arc trees for structure, they will, to quote Bob Lusk, "last for a hundred years and then turn into a rock."
Theo, My dad used to say, when using them for fence post, that the posts will outlast the post holes, I'm not sure about that but I do know them darn things got so hard after many yrs that you couldn't drive a fence staple into them. I know, I crushed many a thumb and forefinger when I was a kid trying to drive staples into them damn things.
