Garden Trellis Netting Calculator
One row of netting is height times width; multiple trellis rows in the same garden multiply that. Add a waste share for trimming and anchoring to get the real purchase area.
Your numbers
Netting needed
2.38m²
Formula
Netting needed = Trellis height (cm) × Trellis width (cm) ÷ 10,000 × Row count × (1 + Cutting waste ÷ 100)
Netting often sags once vines fully load it. Check the mesh size suits your crop before buying — too large a mesh loses support strength.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| Trellis height (cm) (cm) | 180 | 30 ~ 300 |
| Trellis width (cm) (cm) | 120 | 30 ~ 500 |
| Row count | 1 | 1 ~ 5 |
| Cutting waste (%) | 10 | 0 ~ 30 |
Step by step
Quick reference table
Results when only Trellis height (cm) (cm) changes and everything else stays put.
| Trellis height (cm) (cm) | Netting needed (m²) |
|---|---|
| 90 | 1.19 |
| 135 | 1.78 |
| 180 | 2.38 |
| 270 | 3.56 |
| 300 | 3.96 |
What each result means
| Result | At default values |
|---|---|
| Netting needed (m²) | 2.38 |
Common mistakes
Netting often sags once vines fully load it. Check the mesh size suits your crop before buying — too large a mesh loses support strength.
Frequently asked questions
QHow is Garden Trellis Netting Calculator calculated?
Netting needed = Trellis height (cm) × Trellis width (cm) ÷ 10,000 × Row count × (1 + Cutting waste ÷ 100) — One row of netting is height times width; multiple trellis rows in the same garden multiply that. Add a waste share for trimming and anchoring to get the real purchase area.
QCan you walk through an example?
With Trellis height (cm) 180cm, Trellis width (cm) 120cm, Row count 1, Cutting waste 10%, the answer is Netting needed 2.38m².
QWhat do I need to enter?
Enter Trellis height (cm), Trellis width (cm), Row count, Cutting waste. 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 Trellis height (cm) (cm) moves the answer to Trellis height (cm) (cm) 90 → Netting needed (m²) 1.19 and Trellis height (cm) (cm) 300 → Netting needed (m²) 3.96. 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?
Netting often sags once vines fully load it. Check the mesh size suits your crop before buying — too large a mesh loses support strength.
Related calculators
Keep your length units consistent across inputs — mixing centimetres and metres throws results far off.