Fence Post Calculator
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Fence Post Results
Total Posts Needed
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posts
Bags per Post
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50 lb bags
Total Bags
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Quikrete 50 lb
Concrete Cost
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bag concrete only
Hole Volume (ea)
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ft³ per hole
Line Posts Only
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standard spacing
Fence Hardware Store Shopping List
Quikrete Fast-Setting 50 lb Bags
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Pressure-Treated Posts (4×4×8 ft)
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Water for Quikrete (dry-pour method)
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Post Hole Digger (rent or buy)
1 two-man auger
💡 Quikrete Fast-Setting Dry-Pour Method: Place the post in the hole, pour the dry Quikrete mix around it, then slowly add water. No mixing required. Post can support weight in 4 hours.
Post Hole & Bag Reference
| Hole Diameter | Depth 24" | Depth 36" | Depth 48" |
|---|---|---|---|
| 8 inches | 0.5 bags | 0.7 bags | 1 bag |
| 10 inches | 0.8 bags | 1 bag | 1.5 bags |
| 12 inches | 1 bag | 1.5 bags | 2 bags |
Based on Quikrete 50 lb Fast-Setting bags. Round up — better to have extras than run short.
Fence Post FAQ
Common questions about fence post installation