Herringbone Paving Waste

Diagonal-interlocking patterns like herringbone trim off far more offcuts at every edge than a straight lay. A straight pattern usually needs about 5% extra; herringbone runs 10-20% because of the constant diagonal cuts.

Your numbers

Area(m²)Cutting waste(%)

Area to order

23m²

Extra area

3m²

Formula

Area to order = Area × (1 + Cutting waste ÷ 100)

Waste rises with larger tile/board sizes and more complex room shapes. Ask your installer what waste percentage they actually use before ordering.

What to enter

Input	Default	Accepted range
Area (m²)The space a shape covers — length squared.	20	0.5 and up
Cutting waste (%)	15	0 ~ 40

Step by step

FormulaArea to order = Area × (1 + Cutting waste ÷ 100)

With the default numbersArea to order = 20 × (1 + 15 ÷ 100)

AnswerArea to order = 23 m²

Quick reference table

Results when only Area (m²) changes and everything else stays put.

Area (m²)	Area to order (m²)	Extra area (m²)
10	11.5	1.5
15	17.25	2.25
20	23	3
30	34.5	4.5
40	46	6

What each result means

Result	At default values
Area to order (m²)The paved area plus a margin for diagonal cutting loss.	23
Extra area (m²)	3

Common mistakes

Waste rises with larger tile/board sizes and more complex room shapes. Ask your installer what waste percentage they actually use before ordering.

Glossary

Area: The space a shape covers — length squared.
Area to order: The paved area plus a margin for diagonal cutting loss.

Frequently asked questions

QHow is Herringbone Paving Waste calculated?

Area to order = Area × (1 + Cutting waste ÷ 100) — Diagonal-interlocking patterns like herringbone trim off far more offcuts at every edge than a straight lay. A straight pattern usually needs about 5% extra; herringbone runs 10-20% because of the constant diagonal cuts.

QCan you walk through an example?

With Area 20m², Cutting waste 15%, the answer is Area to order 23m².

QWhat do I need to enter?

Enter Area, 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 Area (m²) moves the answer to Area (m²) 10 → Area to order (m²) 11.5 and Area (m²) 40 → Area to order (m²) 46. 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?

Waste rises with larger tile/board sizes and more complex room shapes. Ask your installer what waste percentage they actually use before ordering.

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Keep your length units consistent across inputs — mixing centimetres and metres throws results far off.