Fence Calculator
Calculate the number of fence panels and posts needed for a fence line, based on its total length and panel width.
- Free to use
- Accurate results
- No registration required
- Works on all devices
Enter your total fence length and panel width to find how many panels and posts you need.
Your result
21
Panels/sections needed
Posts needed21
AI explanation
Formula
Sections = total length ÷ panel width, rounded up; posts = number of sections (closed-loop fence)Worked example
50m fence line, 2.4m panels
| Field | Value |
|---|---|
| Total fence length (m) | 50 |
| Panel/section width (m) | 2.4 |
| Panels/sections needed | 21 |
| Posts needed | 21 |
Assumptions
- Assumes a closed-loop fence line (a fully enclosed yard), where the number of posts equals the number of sections since the loop closes on itself. For an open (non-looping) fence line, add one extra post for the far end.
Frequently asked questions
How do I measure "total fence length" for an enclosed yard?
Add up the length of all sides of your yard that need fencing — this is the fence's total perimeter length.
What if my fence doesn't form a closed loop?
Add one extra post to the result — an open fence line needs a post at both ends, not just one per section.
What panel width should I use?
2.4m (8 feet) is a very common fence panel width, but check your specific product's dimensions.