Free Calculator

Post Hole Calculator

Calculate post hole dimensions and concrete for fences and decks. Get accurate estimates for your project.

Enter Post Details
in
in
Estimated Materials
Total Holes
-
holes
Concrete Bags
-
80 lb bags
Cubic Yards
-
concrete needed
Estimated Cost
-
concrete only
Materials Breakdown
Concrete (80 lb) -
Gravel (per hole) -
Post Brackets -
Pro Tips
1. Holes should be 3x the post width and 1/3 the post height.
2. Add 2-4 inches of gravel at bottom for drainage.
3. Check local frost line requirements - depth varies by region.
4. Use post brackets to prevent wood rot from moisture.