How Much Extra Paver Material Should You Buy?
The calculated paver count is a starting point, not a shopping list. Cuts, breakage, pattern waste, and future repairs all push the real number higher. A sensible extra margin keeps the project moving without a pile of unused pavers.
Why a waste allowance matters
Pavers get cut at edges, corners, and around obstacles. Some cuts leave a sliver too small to use elsewhere. A few pavers arrive chipped or crack during cutting. If you ordered exactly the calculated count, one broken paver can stall the whole job while you wait for a new delivery. A modest extra margin absorbs all of this.
Match the allowance to the layout
| Layout | Suggested waste |
|---|---|
| Simple rectangular, few cuts | 5% |
| Typical patio with edges and a few cuts | 10% |
| Diagonal, herringbone, curves, many cuts | 15% or more |
A straight running-bond patio with clean rectangular edges produces little waste. A diagonal layout turns every edge cut into an angled offcut, and a curved border turns most pavers into custom cuts. When in doubt, round up — the cost of a few extra pavers is far smaller than a second delivery fee.
Don't forget future repairs
Beyond the project waste, keep a small stash for repairs. A paver that cracks in a few years is easy to swap if you have a matching spare; it is hard to match if the style or dye lot is discontinued. Many installers keep 1 to 2% extra as a permanent repair stock, stored flat and out of the weather.
Worked example
A 192 square foot patio using 0.222-square-foot pavers needs 864 pavers before waste. A simple rectangular layout at 5%: 864 × 1.05 = 907.2, rounded up to 908 pavers. A diagonal layout at 15%: 864 × 1.15 = 993.6, rounded up to 994 pavers. Adding 2% for repairs brings the diagonal total to about 1,014 pavers.
Practical cautions
- Buy all pavers from one batch — color and size vary slightly between dye lots.
- Check actual pallet dimensions against the labeled size before finalizing the count.
- Keep spare pavers flat and dry; standing them on edge can chip corners.
- Order base and bedding sand with their own allowances, not just the pavers. See How Much Paver Base Do I Need?
The Paver Calculator applies a 5, 10, or 15% waste allowance and rounds up to whole pavers automatically. For the broader planning picture, see How Many Pavers Do I Need?