Laying a brick patio means building a level base, setting bricks in sand, and filling the joints

A brick patio is built in layers: compacted soil, a gravel base, landscape fabric, sand, the bricks themselves, and sand swept into the joints. The whole process takes a weekend for a small patio (8 by 10 feet) if you work steadily, though larger projects spread across two or three days. The key is getting the base level and firm—bricks laid on a sloppy foundation will shift and crack within a year.

You do not need a professional contractor or expensive equipment. A hand tamper, a level, a rubber mallet, and a wheelbarrow are enough for most patios. The hardest part is not the bricks themselves but the preparation underneath.

Key Takeaways

  • The base layer must be compacted soil, then 4 inches of gravel, all sloped slightly so water drains away from your house.
  • Bricks sit on 1 inch of sand, not mortar—the sand lets them settle and shift slightly without cracking.
  • A hand tamper or plate compactor firms the gravel; a rubber mallet taps bricks level as you lay them.
  • Check your slope and level constantly as you work; fixing it after the bricks are down costs time and money.
  • The whole patio should slope about 1 inch per 8 feet away from your house so rain runs off instead of pooling.

Measure the space and mark the edges

Measure the length and width of the area where your patio will go. Mark the corners with stakes and string so you can see the outline clearly. Check that the corners are square by measuring diagonally from corner to corner—both diagonals should be the same length. If they are not, adjust the stakes until they match.

Decide which direction the bricks will run. Most patios look best with bricks laid in a running bond pattern (like bricks in a wall, with each row offset) or a herringbone pattern. Running bond is simpler for beginners. Mark the direction lightly on the ground with chalk so you remember it as you work.

Excavate and compact the soil base

Dig out the marked area to a depth of about 5 to 6 inches. This leaves room for 4 inches of gravel, 1 inch of sand, and the brick itself (usually 2.25 inches thick). Remove any roots, rocks, and debris. The soil should be firm and relatively level—not perfectly flat, but without big dips or humps.

Tamp the soil down with a hand tamper or rent a plate compactor from a tool rental shop. Hit or roll the entire area two or three times until the soil feels solid underfoot and does not sink when you step on it. This prevents the patio from settling unevenly later.

Add and level the gravel base

Spread 4 inches of crushed gravel or crushed stone over the compacted soil. Rake it roughly level, then tamp it down firmly with the hand tamper or plate compactor. Go over the whole area at least twice. The gravel should not move or shift when you walk on it.

Now establish your slope. The patio should drop about 1 inch in elevation for every 8 feet of length, sloping away from your house. Use a long straight board (a 2-by-4 works well) and a level to check this. Lay the board across the patio in the direction of the slope, place the level on top, and shim one end up until the level shows a slight downward tilt. Measure the gap under the low end—it should be about 1/8 inch per foot of board length. Adjust the gravel until this slope is consistent across the whole patio.

Lay landscape fabric and add sand

Unroll landscape fabric over the gravel to prevent weeds from growing up through the sand and between the bricks. Overlap the edges by 6 inches and trim it to the edges of your patio area. Landscape fabric is cheap and saves hours of weeding later.

Spread 1 inch of coarse sand (also called concrete sand or mason sand—not play sand) evenly over the fabric. Rake it level, then use your straight board and level again to check that the slope is still correct. The sand should follow the same 1-inch-per-8-feet slope away from the house. Do not tamp the sand; you want it loose so the bricks can settle into it slightly as you place them.

Lay the bricks in your chosen pattern

Start at one corner, usually the one closest to your house. Place the first brick firmly into the sand, pressing down gently. Tap it with a rubber mallet until it sits level. Use your level frequently—check both directions (lengthwise and across) to make sure each brick is flat and even with its neighbors.

Lay the second brick next to the first, leaving a gap of about 1/8 inch (roughly the thickness of a dime). Tap it level. Continue along the first row, checking the level every two or three bricks. If a brick sits too high, tap it down. If it sits too low, lift it out, add a pinch of sand underneath, and reset it.

When the first row is complete, start the second row. In a running bond pattern, the second row is offset so that each brick in the new row sits over the joint between two bricks in the row below. This creates the interlocking strength that holds the patio together. Lay each brick, tap it level, and keep checking that the overall slope is still correct as you move away from the house.

Work methodically. Rushing leads to uneven bricks and a patio that looks crooked. If you need to cut a brick to fit an edge, use a brick saw or a cold chisel and hammer. Wear safety glasses when cutting.

Fill the joints with sand and compact

Once all the bricks are laid, spread coarse sand over the entire patio. Sweep it into the gaps between the bricks with a stiff broom, pushing the sand down into the joints. Sweep in multiple directions so the sand fills the spaces completely. The joints should be packed full but not overflowing.

Mist the patio lightly with a garden hose—not a hard spray, just enough to dampen the sand. This helps the sand settle into the joints. Let it dry for a few hours, then sweep again and mist again. Repeat this process two or three times over the next day. Each cycle compacts the sand further and fills any gaps that appeared as the sand settled.

After the final misting and drying, the patio is ready to use. The bricks will continue to settle slightly over the first few weeks, so you may need to sweep a little more sand into the joints once or twice. This is normal and not a sign of a problem.

Common mistakes to avoid

The most common error is skipping or rushing the base preparation. A weak gravel base or uneven sand layer will cause bricks to rock, crack, or sink within months. Spend the time to get the base right.

Another mistake is laying bricks on mortar instead of sand. Mortar is permanent and makes it hard to adjust bricks if they are not level. Sand is forgiving—you can lift a brick, add more sand, and reset it. Mortar is for walls, not patios.

Forgetting the slope is also common. A flat patio collects water, which freezes in winter and breaks the bricks. The 1-inch-per-8-feet slope is not steep enough to be noticeable to the eye, but it is enough to shed water reliably.

Finally, do not use play sand or fine sand. Coarse sand (concrete sand or mason sand) compacts and stays in place. Fine sand washes away in rain and leaves gaps between the bricks.

Frequently Asked Questions

How long does a brick patio last?

A well-built brick patio lasts 20 to 30 years or longer. The bricks themselves are nearly permanent, but the sand in the joints washes away over time and needs to be replenished every few years. Resealing the joints with polymeric sand (sand mixed with a resin binder) can extend the life to 40 years or more.

Can I lay a patio on top of concrete?

Yes, but only if the concrete is in good condition—no large cracks or heaving. Lay landscape fabric over the concrete, then spread 1 inch of sand, and lay the bricks. The concrete acts as your base instead of gravel. Make sure the concrete still slopes away from your house, or the patio will collect water.

What if my patio area is not level to start with?

Dig deeper in the high spots and shallower in the low spots so that after you add the gravel and sand, the top surface will be level (or sloped correctly). This takes extra time but is worth it. A patio built on uneven ground will look crooked and may not drain properly.

Do I need to use a plate compactor, or is a hand tamper enough?

A hand tamper works for small patios (under 100 square feet). For anything larger, rent a plate compactor—it is faster and does a better job. A plate compactor costs about 50 to 75 dollars per day to rent and saves you hours of physical work.

How much sand do I need?

Plan for about 1 cubic yard of sand per 100 square feet of patio, plus a little extra for topping off the joints later. A cubic yard weighs about 1.5 tons, so order accordingly. It is better to have a bit left over than to run short halfway through.