Short answer: Measure each straight run between fixed ends and corners. Mark gates by width and distance from the run start; a single total fence length cannot determine the post layout.
Swipe the diagram sideways to see every label. The full calculation is written below it.
Walk the proposed line
Mark each start, end, corner, and gate on a sketch. Measure every run separately. Do not rely only on a property listing’s lot dimensions; the actual fence line can be shorter or have offsets.
Record openings
For each run, mark every gate width and its distance from the run start. Enter up to six nonoverlapping gates on one straight run. Mark changes in elevation and fence style separately.
Count shared corners once
Adjacent runs can share a corner post. Enter the number of shared corners in the fence planner, then compare its post count with the sketch. Confirm property boundaries and local rules before building.
Hypothetical worked example
Suppose one straight run is 40 ft and a second 32 ft run meets it at a corner. At an 8 ft maximum, they need five and four bays. Their six and five drawn post positions share one physical corner, leaving ten distinct posts before gates or other adjustments.
Which situation matches your project?
Limit to check: One run supports up to six nonoverlapping gates. More openings or a change in direction requires another run and a physical check of shared posts.
Further reading
YardSetup prepared this guide from the stated geometry and the linked references where provided. The adjustable example runs in your browser. See our formulas and limits or report an error.