Many fences come as ready-made panels. Enter your fence length and panel width to see how many panels and posts you need, and how much to trim off the last panel.
Your shopping list
How to use the Fence Panel Calculator
- Enter the total fence length.
- Pick the panel width you will buy.
- Add your gates and their width.
- Read the list, and plan to trim the last panel to fit.
The math behind it
Panels = (length – gates x gate width) / panel width, rounded up
Posts = panels + 1 + one extra for each gate
Trim = panels x panel width – fence run
A worked example
What we typed in
- Total fence length: 75 ft
- Panel width: 8 ft panel
- Number of gates: 0
- Width of one gate: 4 ft
What we got
- Panels: 10
- Posts: 11
- Concrete bags (60 lb): 22
- Gates: 0
- Trim off the last panel: 5 ft
Second worked example
For a 64 ft run with one 4 ft gate and 6 ft panels, the remaining 60 ft takes 10 panels and 12 posts. The last panel needs no trim.
Common sizes and example outputs
| Panel width | Panels for 60 ft of fence |
|---|---|
| 6 ft | 10 |
| 8 ft | 8 |
Tips from the job site
- Measure the real panel width. Some brands are a little shorter than the label.
- Set the posts first, then fit each panel between them.
Common questions
Do I need to cut a panel?
Often only the last one. The trim number shows how much to take off.
How many posts do panels need?
One more than the number of panels, plus an extra post for each gate.
Last checked: (worked example and recalculation).