How Many Pavers for an 18x18 Patio?
An 18 by 18 foot patio covers 324 square feet. With common 4x8 inch brick pavers at about 4.5 per square foot, how many pavers for an 18x18 patio comes to 1,458 pavers, plus waste.
Volume and tonnage calculator →Paver count by size
| Paver size (in) | Per sq ft | Pavers needed | With 10% waste |
|---|---|---|---|
| 4x8 | 4.5 | 1,458 | 1,604 |
| 6x6 | 4 | 1,296 | 1,426 |
| 6x9 | 2.67 | 866 | 952 |
| 12x12 | 1 | 324 | 357 |
| 16x16 | 0.5625 | 183 | 201 |
| 24x24 | 0.25 | 81 | 90 |
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 Paver Base for an 18x18 Patio?
Cuts and waste
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 an 18x18 patio
Under the pavers, a patio usually gets about 4 inches of compacted paver base, which is roughly 5.6 tons for this size, plus about 1 inch of bedding sand, around 1.00 cubic yards. The paver calculator runs base, sand and paver counts together.
Related: How Much Concrete for an 18x18 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
Measure the patio in feet and multiply for square feet. For L-shapes or curves, split the area into rectangles and circles and add them. Mark the outline with paint or string first so your numbers match the real layout.
Common mistakes
Many DIY patios settle because the base was not compacted in lifts. Others use more than an inch of sand or skip the slope away from the house. Keep the sand bed thin and even.
Questions people ask
How many 4x8 pavers for an 18x18 patio?
About 1,458, or 1,604 with 10% waste.
How many 12x12 pavers for an 18x18 patio?
About 324, or 357 with 10% waste.
How many square feet is an 18x18 patio?
324 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 16x20 Patio?
- How Many Pavers for a 16x24 Patio?
As an Amazon Associate, AsphaltTons.com earns from qualifying purchases. Product links below are sponsored.