Fence Calculator
Calculate posts, rails, and panel quantities for fencing projects.
Step 1: Units
Step 2
Enter project measurements
Use decimals if needed (e.g. 3.5).
How to use this calculator
Enter fence run length, post spacing, and fence style assumptions.
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.