Well now y'all tell me! I researched as much as I could find online and went with pressure treated hem-fir posts like I did last time. I didn't know that DF treated posts are even available (where?). I only have 6 more posts to plant before progressing to the next step.

I think soil conditions are a huge factor affecting fencepost longevity. And I'm concerned that my soil conditions are prime for Rocket Red's prognostication. Now I'm wishin' I had something to coat the bottoms of these "treated" fence posts, but the last two fences I did with this kind of post have held up OK.

Speaking of fence posts, I'm really getting a workout. I have gravelly soil down to about 2 1/2', but my deer fence section is going to be 7'' high, so I'm sinking those posts 3' into the ground. That last half foot is some kind of super-compacted glacial granular deposit that is like digging through concrete. I whack the bottom of the hole with my 20# bar and loosen maybe 3/4" at a time. It takes as long to dig the last half foot as it does to dig the first 2 1/2'. Getting a good workout at least. And to think these posts won't look good for more than a decade makes me hurt.

Sg