Trellis Panel Count
Dividing the run by one panel's width and rounding up gives the panel count. Multiplying that back by the width gives the length actually covered, usually a little more than the original run.
Your numbers
Panels
7
Covered length
6.3m
Formula
Panels = ⌈Total run length × 100 ÷ Panel width (cm)⌉
Add extra if panels need trimming at posts or corners.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| Total run length (m) | 6 | 0.5 and up |
| Panel width (cm) (cm) | 90 | 10 and up |
Step by step
Quick reference table
Results when only Total run length (m) changes and everything else stays put.
| Total run length (m) | Panels | Covered length (m) |
|---|---|---|
| 3 | 4 | 3.6 |
| 4.5 | 5 | 4.5 |
| 6 | 7 | 6.3 |
| 9 | 10 | 9 |
| 12 | 14 | 12.6 |
What each result means
| Result | At default values |
|---|---|
| PanelsTotal run length divided by panel width, rounded up. | 7 |
| Covered length (m) | 6.3 |
Common mistakes
Add extra if panels need trimming at posts or corners.
Frequently asked questions
QHow is Trellis Panel Count calculated?
Panels = ⌈Total run length × 100 ÷ Panel width (cm)⌉ — Dividing the run by one panel's width and rounding up gives the panel count. Multiplying that back by the width gives the length actually covered, usually a little more than the original run.
QCan you walk through an example?
With Total run length 6m, Panel width (cm) 90cm, the answer is Panels 7.
QWhat do I need to enter?
Enter Total run 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 Total run length (m) moves the answer to Total run length (m) 3 → Panels 4 and Total run length (m) 12 → Panels 14. 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?
Add extra if panels need trimming at posts or corners.
Related calculators
Keep your length units consistent across inputs — mixing centimetres and metres throws results far off.