Put as long a point as you can. Most of mine are a ft. long, done with a chain saw. We made four cuts. It does make a difference as to which end. One end it will go tho like butter and the other end it much harder. We put the thick end up. That's the way I've know for years on farms and ranches. When the butt of the post sits in the ground, it will eventually get pushed up. With a small diameter point, it will remain longer. As to how deep, some of our posts were pushed in with a loader which needed a full bucket. They were pushed and banged in. Any deeper than 2' and the post wanted to split. There is what is called hard pan, a cement like layer of clay that is difficult to penetrate. Even with a post pounder we were limited to depth. An auger will go deeper. When augered the posts have to have soil tamped around the post. With the post pounder once the post is in the ground, that's it. I hire a fellow who specializes in farm fencing. He pounds a post about every 10 min. He builds the corners. There is too much ice and snow right now or I'd send some pics of his corners. I just thought of something. Think of the letter H. That is how my corners are braced. The bar across is a post, anything over 3' is fine. Then run wire diagonally in an X and tighten. There is a gadget that's real slick. Easy to retighten when needed. Your corner will use 3 posts and two cross posts.
Last edited by Saddlebag; 04-12-2013 at 08:21 PM.