The calculation, explained.
For one open straight run, sections = ceiling(length ÷ maximum spacing). Posts = sections + 1 for a nonzero run. Gates, corners and closed-loop layouts need separate treatment.
Review the example assumptions and results
- Open straight run
- 100 ft
- Maximum post spacing
- 8 ft
- Sections
- 13
- Posts
- 14
How this tool works
Adjust the labeled inputs to see a new calculation. Units and assumptions are shown beside each field. Printed and copied results use the same calculation.
This is a planning estimate, not a structural design, permit document or binding quote. Check product specifications and actual site measurements.
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