Fencing · Post-hole geometry

Plan post stock and concrete from a verified depth.

Enter the embedment selected for your project and an optional locally verified reference. The calculator sizes stock and concrete without pretending to approve the design.

← Post width →↕ Above-grade height↕ Planned embedment depth↕ Bottom clearance

← Hole diameter →↕ Hole depthPost centered in hole

1 Enter the verified project geometry

Fence postscountAbove-grade post heightfeetPlanned embedment depthinchesLocally verified reference depthinchesHole diameterinchesSquare post widthinchesBottom clearance below postinches

2 Enter concrete and price details

Concrete allowancepercentConcrete bag yieldft³ / bagPrice per concrete bagUSDPrice per postUSD

Transparent calculation

Hole cylinder minus embedded post volume.

Concrete volume subtracts the square post from the cylindrical hole across the entered embedment. Bottom clearance extends the hole without extending the post.