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Post Hole Calculator helps contractors and tradespeople accurately size, spec, and estimate materials and systems.
Formel
Hole Depth = 1/3 to 1/2 of post height (min 2 ft below frost line)
Trin-for-trin guide
- 1Determine post height, calculate hole depth, size for concrete
- 2Apply the formula using your project measurements
- 3Add required safety factors or waste allowances per code
Løste eksempler
Input
8 ft post, 3 ft frost line depth
Resultat
Hole Depth = max(8/3, 3) = 3 ft, 10 inch diameter
Almindelige fejl at undgå
- ✕Not applying code-required safety factors or derating
- ✕Forgetting to account for waste and cut losses in material estimates
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