Fence Calculator
Estimate fence panels and posts needed from total fence length and panel width.
How this calculator works
How to use this calculator
Enter total fence length and panel width or post spacing. Optionally enter the number of gates. The calculator estimates fence panels and posts.
Formula used
Panels Needed = Total Fence Length ÷ Panel Width, rounded up. Posts Needed = Panels + 1 + Gates.
Example calculation
A 120 ft fence using 8 ft panels needs 15 panels. Without gates, it needs about 16 posts. With 1 gate, the estimate is 17 posts.
What the result means
The result gives a basic material estimate for straight fence sections. Real projects may need extra posts for corners, gates, slopes, or layout changes.
Frequently asked questions
Does this include corner posts?
It gives a simple estimate. Add extra posts for corners or complex layouts.
Are gates included?
Gates are included as an optional post adjustment, but gate hardware is not calculated.
Should I buy extra material?
It is usually wise to plan extra for cuts, damaged pieces, or layout changes.