Enter the patio’s length and width, the paver size and the pattern. You get the number of pavers with extra for cuts, the crushed-stone base, the bedding sand, the bags of polymeric joint sand and the edging.
Running-bond pattern with 5% extra, on a 4 in compacted base.
| Patio | 6 x 9 in pavers | 4 x 8 in pavers | Base stone |
|---|---|---|---|
| 10 × 10 ft | 280 | 473 | 2.2 tons |
| 12 × 12 ft | 404 | 681 | 3.2 tons |
| 12 × 16 ft | 538 | 908 | 4.3 tons |
| 16 × 20 ft | 896 | 1,512 | 7.2 tons |
| 20 × 20 ft | 1,120 | 1,890 | 9.0 tons |
Area is length × width. Pavers are that area with 5% extra for a running-bond or stack pattern and 15% for herringbone, circles or diagonals (the paver patio cost calculator’s allowances), divided by the face of one paver at its nominal size.
The base is crushed stone: area × depth, ordered 25% over the finished volume because it compacts, at 1.45 tons per cubic yard, the same factors as the gravel calculator. Bedding sand is a 1 in layer.
Polymeric joint sand is counted at 75 sq ft per bag; narrow joints use less and wide or tumbled pavers more. Edge restraint runs the full perimeter.
Sources:
Quantities are for planning and ordering. Check the plan, the supplier’s product data and local code before you buy; for structural concrete, follow the drawings.
A 12 × 12 ft patio is 144 sq ft. With 5% extra for a running-bond pattern that is 404 pavers of 6 × 9 in. It also takes about 3.2 tons of crushed stone for a 4 in base and 2 bags of polymeric sand.
At nominal size: 4.5 brick pavers of 4 × 8 in, 4 pavers of 6 × 6 in, about 2.7 of 6 × 9 in, 1 of 12 × 12 in, and about 0.56 of 16 × 16 in. Add extra for cuts on top of that.
Patios and walkways usually sit on 4 to 6 in of compacted crushed stone. A 10 × 20 ft patio on a 4 in base takes about 4.5 tons, ordered over the finished volume because the stone compacts. Driveways need a deeper base.
Two kinds: a 1 in layer of bedding sand under the pavers, about 0.44 cubic yards for a 12 × 12 patio, and polymeric sand swept into the joints, about one bag per 75 sq ft.
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