How Many Pavers for a 20x20 Patio?
How many pavers for a 20x20 patio: about 1,800 standard 4x8 inch pavers to cover 400 square feet, or 1,981 with 10 percent extra for cuts and breakage.
Volume and tonnage calculator →Paver count by size
| Paver size (in) | Per sq ft | Pavers needed | With 10% waste |
|---|---|---|---|
| 4x8 | 4.5 | 1,800 | 1,981 |
| 6x6 | 4 | 1,600 | 1,761 |
| 6x9 | 2.67 | 1,068 | 1,175 |
| 12x12 | 1 | 400 | 441 |
| 16x16 | 0.5625 | 225 | 248 |
| 24x24 | 0.25 | 100 | 111 |
Per-square-foot counts are nominal; actual pavers are slightly smaller to allow for joints, so check the count printed on the pallet or product sheet.
Related: How Much Gravel for a 20x20 Patio?
How much waste to add
Straight patterns with few cuts waste around 5 percent. Herringbone and diagonal layouts, curved borders or a lot of obstacles can waste 10 to 15 percent. Keep a few spares for future repairs.
Base and sand for a 20x20 patio
Under the pavers, a patio usually gets about 4 inches of compacted paver base, which is roughly 6.9 tons for this size, plus about 1 inch of bedding sand, around 1.23 cubic yards. The paver calculator runs base, sand and paver counts together.
Related: How Much Paver Base for a 20x20 Patio?
Edging and joints
Edge restraint along every open side keeps the pavers from spreading. After compacting the pavers, sweep polymeric or joint sand into the gaps.
Slope and drainage
Patios should slope away from the house about 1/8 to 1/4 inch per foot so water does not pool against the foundation. Build the slope into the compacted base so the sand bed and pavers stay a consistent thickness.
Measuring the patio
Lay out the patio with stakes and string, square it with the 3-4-5 method and measure. Measure out to the edge restraint, since base should extend a few inches beyond the pavers on each side.
Common mistakes
Skimping on base depth, skipping compaction and using too much bedding sand are the most common errors. Thick sand shifts and causes dips. Another is forgetting edge restraint, which lets pavers creep outward over time.
Questions people ask
How many 4x8 pavers for a 20x20 patio?
About 1,800, or 1,981 with 10% waste.
How many 12x12 pavers for a 20x20 patio?
About 400, or 441 with 10% waste.
How many square feet is a 20x20 patio?
400 square feet.
How much extra should I order for pavers?
About 5 percent for simple layouts and 10 to 15 percent for complex patterns.
How deep should paver base be for a patio?
About 4 inches compacted for patios, more in clay or cold climates.
Related guides
- How Many Pavers per Square Foot? Size Chart
- How Much Paver Base Do I Need? Depth and Tons
- How Deep Should Paver Base Be? Patio vs Driveway
- How Much Sand for Pavers? Bedding and Joint Sand
- Paver Edge Restraint: Types and How to Install It
- How Much Does a Pallet of Pavers Weigh?
- How Many Pavers for a 16x24 Patio?
- How Many Pavers for an 18x18 Patio?
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