Pro tip: I learned the hard way that a 4-foot frost line isn't a suggestion in Minnesota

Oscar Cooper · 2026-03-21T22:30:05.920368+00:00

I was setting posts for a vinyl fence in Duluth last January, thinking the ground was solid enough after a few warm days. The whole first section leaned like a drunk sailor after the next freeze-thaw cycle because I only went down 2 feet. What's the coldest ground you've ever had to dig into for a proper set?

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Pro tip: I learned the hard way that a 4-foot frost line isn't a suggestion in Minnesota | Fence Erectors - Topic Shares