Fence Calculator
Estimates how many 8 ft panels fit a run and suggests post count using an 8 ft post spacing assumption unless you override spacing.
Step 1: Units
Step 2
Enter project measurements
Use decimals if needed (e.g. 3.5).
How to use this calculator
Enter total fence run length. Adjust spacing for wind load or local code.
What the math is doing
Posts ≈ floor(length ÷ spacing) + 1. Panels ≈ ceil(length ÷ 8 ft).
Frequently asked questions
Slopes?
Step panels or rack them; quantities change.
Corner posts?
Included in post count if continuous run.
Gates?
Subtract gate width from panel count.
Wind zones?
Closer post spacing may be required.