Laminate Flooring Pack Calculator
Coverage per pack depends on the plank size and how many planks are boxed, so take it from the label — usually 1.9–2.5 m². A 5 × 4 m room is 20 m²; add 8% waste for 21.6 m², and at 2.2 m² a pack that is 9.8, so 10 packs, because packs are not split. The piece cut off at the end of a row starts the next row: a 5 m row of 128 cm planks leaves 116 cm, comfortably over the 30 cm minimum, so nothing is thrown away.
Your numbers
Packs needed
10packs
Offcut at the row end
116cm
Area
20m²
Formula
Packs needed = ⌈Length × Width × (1 + Waste allowance ÷ 100) ÷ Coverage per pack⌉, Offcut at the row end = (Length × 100) mod Plank length
Offcuts under about 30 cm bunch the end joints together and lift underfoot — start that row with a half plank instead to stagger them. Buy the spare packs with the first order, because a later production lot will not match the shade.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| Length (m)The measurement across, side to side. | 5 | 0 and up |
| Width (m)The measurement front to back. | 4 | 0 and up |
| Plank length (cm)The length of one plank; 120–130 cm is common for laminate. | 128 | 0 and up |
| Coverage per pack (m²)The area one pack covers, printed in m² on the side of the box — usually 1.9–2.5 m². | 2.2 | 0 and up |
| Waste allowance (%)The extra bought to cover breakage and offcuts. | 8 | 0 ~ 50 |
Step by step
Quick reference table
Results when only Length (m) changes and everything else stays put.
| Length (m) | Packs needed (packs) | Offcut at the row end (cm) | Area (m²) |
|---|---|---|---|
| 2.5 | 5 | 122 | 10 |
| 3.75 | 8 | 119 | 15 |
| 5 | 10 | 116 | 20 |
| 7.5 | 15 | 110 | 30 |
| 10 | 20 | 104 | 40 |
What each result means
| Result | At default values |
|---|---|
| Packs needed (packs)Packs to buy; boxes are not split, so this rounds up. | 10 |
| Offcut at the row end (cm)The piece left at the end of a row; over about 30 cm it starts the next row. | 116 |
| Area (m²)The space a shape covers — length squared. | 20 |
Common mistakes
Offcuts under about 30 cm bunch the end joints together and lift underfoot — start that row with a half plank instead to stagger them. Buy the spare packs with the first order, because a later production lot will not match the shade.
Glossary
- Length
- The measurement across, side to side.
- Width
- The measurement front to back.
- Plank length
- The length of one plank; 120–130 cm is common for laminate.
- Coverage per pack
- The area one pack covers, printed in m² on the side of the box — usually 1.9–2.5 m².
- Waste allowance
- The extra bought to cover breakage and offcuts.
- Packs needed
- Packs to buy; boxes are not split, so this rounds up.
- Offcut at the row end
- The piece left at the end of a row; over about 30 cm it starts the next row.
- Area
- The space a shape covers — length squared.
Frequently asked questions
Q. How is Laminate Flooring Pack Calculator calculated?
Packs needed = ⌈Length × Width × (1 + Waste allowance ÷ 100) ÷ Coverage per pack⌉, Offcut at the row end = (Length × 100) mod Plank length — Coverage per pack depends on the plank size and how many planks are boxed, so take it from the label — usually 1.9–2.5 m². A 5 × 4 m room is 20 m²; add 8% waste for 21.6 m², and at 2.2 m² a pack that is 9.8, so 10 packs, because packs are not split. The piece cut off at the end of a row starts the next row: a 5 m row of 128 cm planks leaves 116 cm, comfortably over the 30 cm minimum, so nothing is thrown away.
Q. Can you walk through an example?
With Length 5m, Width 4m, Plank length 128cm, Coverage per pack 2.2m², Waste allowance 8%, the answer is Packs needed 10packs.
Q. What do I need to enter?
Enter Length, Width, Plank length, Coverage per pack, Waste allowance. The result recalculates as you type, and an empty box counts as zero.
Q. How much does the answer move if I change a number?
Changing only Length (m) moves the answer to Length (m) 2.5 → Packs needed (packs) 5 and Length (m) 10 → Packs needed (packs) 20. The table below lays out five steps.
Q. How 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.
Q. Anything to watch out for?
Offcuts under about 30 cm bunch the end joints together and lift underfoot — start that row with a half plank instead to stagger them. Buy the spare packs with the first order, because a later production lot will not match the shade.
Related calculators
Keep your length units consistent across inputs — mixing centimetres and metres throws results far off.