The paver count is the simplest number on a patio estimate, and the one people remember. It is also only one line on the list, because the base and bedding under the pavers are bigger orders by volume. The planner works out all of them from the same patio size.
Patio area = length × width
Pavers = patio area × (1 + waste) ÷ area of one paver
Round up to a whole paver
A 12 × 16 ft patio
The patio is 192 sq ft. With the planner’s 10% paver waste allowance, the paver area to cover is 211.2 sq ft.
This example assumes
- 10% waste for cuts and breakage, an editable planning default
- Paver coverage taken from the face size you enter (add the joint if your product states coverage that way)
The same patio in four paver sizes
| Paver size | Calculated | Buy |
|---|---|---|
| 4 × 8 in | 950.4 pavers | 951 pavers |
| 6 × 6 in | 844.8 pavers | 845 pavers |
| 6 × 9 in | 563.2 pavers | 564 pavers |
| 12 × 12 in | 211.2 pavers | 212 pavers |
The calculation is a fraction of a paver in most rows, and the list rounds it up. Smaller pavers mean larger counts, and each row here includes the waste allowance.
Where the joint comes in
Paver manufacturers state coverage differently. Some give the face size, some give coverage including the joint. If your paver lists a coverage per paver, enter it as coverage rather than length and width. The more your numbers match what the pavers actually cover, the closer the count.
What changes the estimate?
- Paver size and the way the coverage is stated
- Waste allowance for your pattern, since angled and curved patterns cut more
- Patio shape: a non-rectangular patio needs its area worked out first
- Edge pieces and borders, which can use a different paver
The rest of the list
Pavers sit on a compacted base and a thin bedding layer, and edge restraint holds them in. Those are measured by volume and length, and the planner includes them. The base guide and the bedding sand guide cover the volumes.