Measure the actual run
Use centerline or face-of-fence dimensions consistently and deduct gate openings only when appropriate for your material count.
Free contractor tool
Fence Calculator
Turn a fence run into a practical material takeoff for posts, panels or pickets and rails.
Panel + picket modesPosts + sectionsGate deductions
Plan the fence run
Choose panel or picket mode. The straight-run post count can be adjusted for corners, gates and transitions.
Straight-run math is a starting point. Corners, gates, elevation changes, end conditions and manufacturer requirements can add posts or change spacing.
Post count needs judgment
A simple straight run is sections + 1 posts. Corners, gates and transitions often need additional posts.
Panel and picket layouts differ
Panel fences are driven by panel width. Picket fences are driven by post spacing, picket face width and gap.