Fence post calculator
One straight open fence segment with posts at both ends, no gates or corners. Equal spans within chosen maximum spacing; no wind-load design.
Let’s run the numbers
USDTHE NUMBERS, MADE CLEARInstant calculation
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Check your inputs and select Calculate.
One straight open fence segment with posts at both ends, no gates or corners. Equal spans within chosen maximum spacing; no wind-load design.
Worked example
Inputs
- Length (m): 20
- Maximum post spacing (m): 3
Results
- Posts needed: 8
- Actual equal spacing: 2.857142857 m
One straight open fence segment with posts at both ends, no gates or corners. Equal spans within chosen maximum spacing; no wind-load design.
Reviewed:Common uses
One straight open fence segment with posts at both ends, no gates or corners. Equal spans within chosen maximum spacing; no wind-load design.
BEHIND THE NUMBERSFormula & assumptions
spans=ceil(L/s); posts=spans+1; spacing=L/spans
One straight open fence segment with posts at both ends, no gates or corners. Equal spans within chosen maximum spacing; no wind-load design.