I know that the general standard for post footers is to make the diameter of the footer hole 3 times wider than the post itself. However, I want to make sure that even in an 11' foot post (which seems kind of high to me), that this rule is still ok. Or should the footer hole be a bit wider for such a high post? The questions regards the corner post of an 11' foot high chainlink fence. Thanks in advance!
I have always gone down minimum 1/3 of what you have above ground. Diameter off twice the post the top 6" opening out to 4 times the diameter.if your post is not long enough to give you the minimum amount below ground weld or bolt something to extend it