Construction
Post Hole Concrete Calculator
Hole diameter, depth, and post size give bags of concrete per hole.
60 lb bags per hole
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- Total 60 lb bags
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- Cu ft per hole
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- 80 lb bags total
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FAQ
How deep should fence posts go? +
Below the frost line — 36 inches in most US climates, 48 inches in the north.
Bag yield? +
60 lb = 0.45 cu ft. 80 lb = 0.6 cu ft.