Fence Post Deepness?? - Building & Construction - DIY Chatroom Home Improvement Forum

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Old 04-22-2011, 09:07 PM   #1
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Fence post deepness??

I am building a 6' wooden fence in michigan.I went and bought 4x4x8 treated post.I was planning on digging 28" to 30" holes ,but majority of people i've talked to say that i have to go 4' cause of the frost line,or i risk having the fence get pushed up because of it.

So now i have a dilemma ,either taking a chance with what i am doing ,or returning 40 post to get longer ones.Has anyone build one with those specs and had success with it?


Birdman79 is offline   Reply With Quote
Old 04-22-2011, 09:14 PM   #2
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Northern part of Illinois here and proper depth here is 42" or you do run the risk of frost heave.

Take them back and get 10 footers you won't be sorry, 40 posts is a lot of fence to redo.


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