What You Need to Do Before You Lay the First Paver
Building a paver patio means preparing the ground first, then laying pavers in a pattern on top of a sand and gravel base. The ground preparation takes longer than the actual paving, but it determines whether your patio stays flat or develops low spots and puddles. You will need to remove grass and soil, compact the earth, add a gravel base layer, add a sand layer, then set the pavers one by one.
The entire job for a 10-by-12-foot patio typically takes a weekend if you work alone and have the materials on hand. Larger patios or complex patterns take longer. You will need basic tools: a shovel, a wheelbarrow, a level, a rubber mallet, a tape measure, and a circular saw with a masonry blade if you need to cut pavers. Rent a plate compactor from a tool rental shop if the patio is larger than 100 square feet—hand tamping is slow and produces uneven results.
Key Takeaways
- Dig out the patio area 4 to 6 inches deep, removing all grass and roots, because pavers will sink into soft soil.
- Compact the bare soil with a plate compactor or hand tamper, then add 2 inches of gravel and compact again before adding sand.
- Spread 1 inch of coarse sand over the compacted gravel, screed it flat with a straight board, then lay pavers in your chosen pattern.
- Tap each paver down with a rubber mallet so it sits level with its neighbors, checking constantly with a level.
- Sweep polymeric sand into the joints between pavers, mist it with water, and let it cure for 24 hours before walking on the patio.
Marking Out and Digging the Patio Area
Start by marking the outline of your patio with chalk or spray paint. Measure twice from fixed points on your house or fence so the corners are square. A straightforward way to check: measure the diagonal from one corner to the opposite corner, then measure the other diagonal. If both diagonals are the same length, the rectangle is square.
Dig out the entire area to a depth of 4 to 6 inches. Remove all grass, roots, and loose soil. The depth depends on your paver thickness (usually 2 to 2.5 inches) plus 1 inch of sand plus 2 inches of gravel. If you are laying pavers over an existing concrete pad, you can skip the digging step, but the concrete must be clean and level—sweep off debris and fill any cracks with concrete filler.
As you dig, pile the removed soil to one side. You may be able to use it elsewhere in your yard, or arrange for a landscaper to haul it away. Do not leave it in the patio area—you will need the space to work.
Compacting the Soil and Adding the Gravel Base
Once the area is dug out, compact the bare soil firmly. If the patio is smaller than 100 square feet, use a hand tamper—a flat metal plate on a long handle that you lift and drop repeatedly. For anything larger, rent a plate compactor from a tool rental shop. A plate compactor costs about $40 to $60 per day and saves hours of work. Compact in overlapping passes until the soil feels solid underfoot and does not sink when you step on it.
Spread 2 inches of gravel (crushed stone or pea gravel) evenly over the compacted soil. Compact this layer the same way. The gravel provides drainage so water does not pool under your patio and cause frost heave in winter. Uncompacted gravel will shift under the weight of the pavers, creating low spots.
Check the gravel layer with a level as you work. It should slope slightly away from your house—about 1/8 inch per foot—so water runs off. If your patio is 12 feet from the house, the far edge should be about 1.5 inches lower than the edge closest to the house. You do not need to be exact, but a noticeable slope prevents standing water.
Spreading and Screeding the Sand Layer
Spread 1 inch of coarse sand (also called concrete sand or mason sand) evenly over the compacted gravel. Do not use fine sand or play sand—they compact too much and will not support the pavers properly. Coarse sand is slightly gritty and holds its shape.
Use a straight board—a 2-by-4 or a level—to screed the sand flat. Lay the board across the gravel on both sides of the patio area, then drag it toward you, filling low spots as you go. The sand should be level and smooth, with no humps or dips. This step matters: if the sand is uneven, your pavers will be uneven, and you will spend hours trying to level them later.
Once the sand is screeded, do not walk on it more than necessary. If you must cross the patio, step on the gravel or on boards laid across the sand. Footprints in the sand will create low spots under the pavers.
Laying the Pavers in Your Chosen Pattern
Pavers come in several standard patterns: running bond (like bricks in a wall), herringbone, basket weave, and random. Running bond is the easiest for a first patio. Lay the first row along the edge closest to your house, working from one corner toward the other. Set each paver firmly on the sand, pressing down by hand first, then tapping it with a rubber mallet until it sits level with the pavers next to it.
Check your work constantly with a level. Place the level across two or three pavers at a time, in both directions (front-to-back and side-to-side). If a paver is too high, tap it down. If it is too low, lift it out, add a pinch of sand underneath, and reset it. This is tedious, but it is the only way to get a flat patio. A patio with dips and high spots will collect water and become a tripping hazard.
Work in rows, moving away from the house. Once you reach the far edge, you may need to cut pavers to fit. Mark the cut line with chalk, then use a circular saw with a masonry blade to cut through the paver. Wear a dust mask and eye protection—cutting pavers creates a lot of fine dust. Cut slowly and let the saw do the work; forcing it will overheat the blade.
Filling Joints and Finishing the Patio
Once all pavers are laid and level, sweep polymeric sand into the joints between them. Polymeric sand is a special blend that hardens when wet, locking the pavers in place and preventing weeds from growing between them. Spread it with a broom, sweeping it into the gaps from multiple directions so it fills completely. Sweep off any excess sand from the paver surface.
Mist the entire patio lightly with a garden hose. Do not soak it—just enough water to set up the polymeric sand. The sand will harden over the next 24 hours. Do not walk on the patio or allow water to pool on it during this time. If rain is forecast, cover the patio with a tarp.
After 24 hours, the polymeric sand will be fully cured and your patio is ready to use. Sweep off any remaining loose sand, and you are done. The patio should be flat, stable, and ready for furniture and foot traffic.
Common Mistakes and How to Avoid Them
The most common mistake is skipping or rushing the soil compaction. Uncompacted soil will settle unevenly, causing pavers to sink and crack. Spend the time to compact properly, and rent a plate compactor if the area is large. The rental cost is worth the result.
The second mistake is using the wrong sand. Fine sand or play sand will compact under the weight of the pavers and leave you with a wavy surface. Use coarse sand (concrete sand or mason sand) and spread it 1 inch thick. If you are unsure which sand to buy, ask the staff at the landscape supply yard—they can point you to the right product.
The third mistake is not checking the level as you lay pavers. It is tempting to lay them quickly and level them all at the end, but by then it is too late to fix low spots without removing pavers. Check the level constantly, especially at the edges and corners where mistakes are most visible.
Frequently Asked Questions
Do I need to use polymeric sand, or can I use regular sand?
Regular sand will work, but it will wash out between the pavers over time, especially in areas with heavy rain or if you wash the patio with a hose. Polymeric sand hardens when wet and stays in place. It costs more upfront but lasts much longer and prevents weeds from growing between the pavers.
What if I don't have a plate compactor—can I just use a hand tamper?
Yes, but it will take much longer and the results may be less even. A hand tamper works fine for patios under 100 square feet. For anything larger, the time and effort saved by renting a plate compactor is worth the $40 to $60 rental fee.
How long does it take for the patio to be ready to use?
The polymeric sand needs 24 hours to cure before you walk on the patio. After that, it is ready for furniture and regular use. The pavers themselves are solid when ready, but the sand between them needs time to harden.
Can I lay pavers over an existing concrete patio?
Yes, if the concrete is clean, level, and in good condition. Sweep off all debris and fill any cracks with concrete filler. You can skip the digging and gravel steps and lay pavers directly on the concrete with a thin layer of sand underneath. The concrete must be level—if it has significant low spots or is cracked, the pavers will follow those imperfections.
What should I do if a paver cracks after I lay it?
Remove the cracked paver by prying it up with a flat tool, sweep out the sand underneath, and set a new paver in its place. Tap it level with the surrounding pavers. This is one reason to buy a few extra pavers when you order—you will almost certainly need a replacement or two over time.