Outdoor & Structural
Fence Calculator & Project Planner
Plan a fence from either the yard dimensions or a total run length. ProjectKit works out sections, posts, rails, pickets, gate hardware, and how much concrete the post holes will swallow.
Before you build
Post depth, footing size, spacing, and height limits are governed by local code, frost depth, soil, and wind exposure. These are material-planning estimates only.
Common questions
How far apart should fence posts be?
Six to eight feet on centre covers most residential fences. Eight feet is the usual default for privacy fence with 2×4 rails; six feet gives a noticeably stiffer fence in windy spots or where the rails are lighter.
How deep should a fence post go?
A common rule of thumb is one third of the above-ground height, or below the local frost line, whichever is deeper. Two feet is typical for a six-foot fence in mild climates and nowhere near enough in cold ones — check your local frost depth.
How many bags of concrete per fence post?
For a 10 in hole 24 in deep around a 4×4 post, expect roughly two to three 60 lb bags. This planner works it out from the hole size you enter rather than a fixed rule.
Do I need a permit to build a fence?
Often yes, and height limits and setback rules are extremely common — front-yard fences in particular. ProjectKit cannot tell you your local rules, so check with your municipality and HOA before you buy material.
What usually comes next
Projects that tend to follow a fence job.
ProjectKit provides planning estimates only. Actual requirements, costs, installation methods, structural requirements, permits, safety requirements, and building codes vary. Verify critical specifications before purchasing materials or beginning work. Read the full terms.