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Putting up a cedar fence in Spokane with a 4-foot post depth
Everyone around here says to go 3 feet down for frost line. I went a full foot deeper on a job last fall, thinking it would be rock solid. The ground froze so hard it actually pushed two posts up and out of plumb by spring. I learned that sometimes going deeper can make the ground grip the post and lift it. Has anyone else seen this happen with extra deep holes in a cold snap?
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