Prefab Fence Panel Count Calculator
Prefab panel fencing joins fixed-width panels, so the run can't be split freely. Dividing the total length by panel width and rounding up gives the panel count; multiplying back shows how much longer the actual run ends up than the original target.
Your numbers
Panels
14
Actual built length
25.2m
Formula
Panels = ⌈(Fence length × 100) ÷ Panel width (cm)⌉
Corners and gate openings usually need different-width panels — exclude those spans from this count.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| Fence length (m)The total run the fence covers. | 24 | 0.5 and up |
| Panel width (cm) (cm) | 180 | 30 ~ 300 |
Step by step
Quick reference table
Results when only Fence length (m) changes and everything else stays put.
| Fence length (m) | Panels | Actual built length (m) |
|---|---|---|
| 12 | 7 | 12.6 |
| 18 | 10 | 18 |
| 24 | 14 | 25.2 |
| 36 | 20 | 36 |
| 48 | 27 | 48.6 |
What each result means
| Result | At default values |
|---|---|
| PanelsHow many panels the roof can actually take. | 14 |
| Actual built length (m) | 25.2 |
Common mistakes
Corners and gate openings usually need different-width panels — exclude those spans from this count.
Glossary
- Fence length
- The total run the fence covers.
- Panels
- How many panels the roof can actually take.
Frequently asked questions
QHow is Prefab Fence Panel Count Calculator calculated?
Panels = ⌈(Fence length × 100) ÷ Panel width (cm)⌉ — Prefab panel fencing joins fixed-width panels, so the run can't be split freely. Dividing the total length by panel width and rounding up gives the panel count; multiplying back shows how much longer the actual run ends up than the original target.
QCan you walk through an example?
With Fence length 24m, Panel width (cm) 180cm, the answer is Panels 14.
QWhat do I need to enter?
Enter Fence length, Panel width (cm). The result recalculates as you type, and an empty box counts as zero.
QHow much does the answer move if I change a number?
Changing only Fence length (m) moves the answer to Fence length (m) 12 → Panels 7 and Fence length (m) 48 → Panels 27. The table below lays out five steps.
QHow are the numbers rounded?
Money is shown to the nearest whole unit, percentages to one decimal place and everything else to two. What you see is rounded; the calculation itself carries the unrounded value forward.
QAnything to watch out for?
Corners and gate openings usually need different-width panels — exclude those spans from this count.
Related calculators
Keep your length units consistent across inputs — mixing centimetres and metres throws results far off.