The basic process: prepare, level, lay, and seal
Laying patio pavers means digging out the ground, creating a level base, setting pavers in sand or mortar, and filling the joints. The whole job takes a weekend for a small patio if you work alone, or a day with a helper. You do not need special tools — a shovel, level, rubber mallet, and tape measure will get you through most of it.
The difference between a patio that lasts five years and one that lasts twenty is the base. Pavers shift and crack if the ground underneath moves or settles unevenly. A proper base — usually 4 to 6 inches of compacted gravel — stops that. The second most common mistake is not sloping the ground slightly so water runs off instead of pooling.
You have two main methods: laying pavers in sand (faster, easier to adjust, good for patios you might change later) or in mortar (permanent, better for high-traffic areas, harder to fix). Most homeowners use sand for residential patios because you can pull up a paver and reset it if you make a mistake.
Key Takeaways
- Dig out 6 to 8 inches of soil, compact 4 to 6 inches of gravel into the hole, then add 1 inch of sand on top — this base is what keeps pavers from shifting.
- Check that the ground slopes slightly (about 1/8 inch per foot) so water drains away from your house and does not pool on the patio.
- Lay pavers in a straight line using a level and rubber mallet, tapping each one down so it sits flush with its neighbors.
- Fill the joints between pavers with sand (polymeric sand is better because it hardens slightly and keeps weeds out) or mortar if you want a permanent installation.
- Rent a plate compactor from a tool rental shop for $40 to $60 a day if your patio is larger than 100 square feet — it saves your back and compacts the base properly.
Measure and mark out the patio area
Measure the length and width of the space where you want the patio. Mark the corners with stakes and string so you can see the outline clearly. If the patio is against your house, measure from the house wall. If it is freestanding, pick a corner and work from there.
Check that your outline is square by measuring diagonally from corner to corner — both diagonal measurements should be the same length. If they are not, adjust the stakes until they match. This step takes ten minutes and saves hours of frustration later.
Dig out the soil and prepare the base
Dig out the marked area to a depth of 6 to 8 inches. Remove all grass, roots, and loose soil. The bottom should be firm — if you step on it and your foot sinks, dig deeper and remove more of the soft material. Compact the soil at the bottom using a hand tamper (a flat metal plate on a handle) or a plate compactor if the area is large.
Spread 4 to 6 inches of gravel (crushed stone or pea gravel) over the compacted soil. Compact this layer as well — this is the most important step. A loose gravel base will settle unevenly and your pavers will crack. If you are renting a plate compactor, use it now. If you are using a hand tamper, make multiple passes until the gravel feels solid underfoot and does not shift when you walk on it.
Spread 1 inch of coarse sand over the compacted gravel. This is the bed where the pavers actually sit. Do not use fine sand (like play sand) — it compacts too much and holds water. Coarse sand or concrete sand is what you want. Rake it level.
Check the slope and adjust for drainage
Water must run off the patio, not sit on it. The ground should slope slightly away from your house — about 1/8 inch of drop for every foot of distance. On a 10-foot patio, that is about 1.25 inches total drop from the house side to the far edge.
Use a 4-foot level and a shim (a thin wedge) to check this. Place the level on the sand bed running perpendicular to your house. Slide a shim under one end until the bubble is centered — the height of the shim is roughly how much slope you have. Adjust the sand until you get the right slope. This is easier to do now than after the pavers are down.
Lay the pavers in sand
Start at one corner and lay the first paver on the sand bed. Tap it down gently with a rubber mallet until it sits level with the ground around it. Place a level on top of the paver to check that it is not tilted. Adjust by adding or removing sand underneath until it is flat.
Lay the next paver beside the first, leaving a consistent gap (usually 1/4 inch to 1/2 inch, depending on your paver style). Tap it down and level it. Continue this way, working in rows. Check every few pavers with the level to make sure you are not drifting out of plane.
When you reach the edge of the patio, you will need to cut pavers to fit. Mark the cut line with a pencil, then use a paver saw (a wet saw with a diamond blade, available at tool rental shops for $30 to $50 a day) or a circular saw with a masonry blade. Wear a dust mask — cutting pavers creates a lot of fine dust. Lay the cut pieces and level them like the others.
Fill the joints between pavers
Once all pavers are down, sweep sand into the joints between them. Use a broom to push sand into the gaps until they are full. Sweep off the excess sand from the top of the pavers. If you are using regular sand, sweep and refill the joints after the first rain — sand settles and the joints will be lower.
Polymeric sand is a better choice if you want a longer-lasting patio. It is regular sand mixed with a binder that hardens slightly when wet. Sweep it into the joints the same way, then mist it lightly with a garden hose. The binder activates and the sand hardens, which keeps weeds from growing in the cracks and keeps the sand from washing out. Follow the product instructions for drying time — usually 24 to 48 hours before you use the patio.
If you are using mortar instead of sand, mix it according to the bag instructions and spread it into the joints with a grout bag (a tool that looks like a caulk gun). Smooth the joints with a jointing tool or a piece of PVC pipe. Let the mortar cure for the time specified on the bag before walking on the patio.
Seal the pavers if needed
Sealing is optional but extends the life of the patio. A sealer protects pavers from stains, water absorption, and UV fading. It is especially useful if your pavers are natural stone (like flagstone or slate) rather than concrete. Concrete pavers are more durable without sealing, but sealing them makes them easier to clean.
Wait at least two weeks after installation before sealing so the sand or mortar has fully cured. Choose a sealer made for your paver type — stone sealers, concrete sealers, and brick sealers are different products. explore it with a roller or sprayer according to the product instructions. Most sealers need to cure for 24 to 48 hours before rain or foot traffic.
Frequently Asked Questions
Do I need to use mortar or can I just use sand?
Sand is fine for most residential patios and is easier to work with. Mortar is more permanent and better for high-traffic areas or if you live somewhere with heavy rain or freeze-thaw cycles. Sand lets you pull up and reset pavers if you change your mind later.
How much does it cost to lay a patio myself?
Costs vary by paver type and size. Concrete pavers run $1 to $3 per square foot, natural stone $3 to $10 per square foot. Add gravel, sand, and tools, and a 200-square-foot patio usually costs $400 to $1,500 in materials. Renting a plate compactor adds $40 to $60 a day.
Can I lay pavers on top of existing concrete?
Yes, if the concrete is in good condition and does not have large cracks. Clean it, fill any cracks with concrete filler, and lay pavers on top using mortar. You skip the digging and base preparation, which saves time and money.
How long does it take to lay a patio?
A 100-square-foot patio takes one person a full weekend. A 200-square-foot patio takes two people a day. The base preparation (digging and compacting) takes the longest. Laying the pavers themselves is faster once the base is ready.
What if the ground is not level to start with?
Adjust the depth of your base. Dig deeper in high spots and shallower in low spots so the top of your gravel layer is level. This is why checking the slope and adjusting the sand bed is important — it corrects small unevenness in the ground.