Set spacing, corners and post depth for the post count and the length to buy.
How it works
Posts are length ÷ spacing plus one, with corners and gates added. Length needed is height above grade plus the depth in the ground.
Before you order
- Treated posts rated for ground contact last much longer below grade.
- Stretch mason line from end posts before setting the middle posts.
- Gate posts see more force, so size them up where you can.
Common questions
How deep should a fence post be?
A common rule is one-third of the total post length, and below frost where local rules ask.
How long should my posts be?
Add the height above grade to the depth in the ground, then buy the next stock length.