QA

Quick Answer: How To Install Flagstone Patio

What do you put under a flagstone patio?

For a lasting installation, a dry-set stone patio does need a foundation, though. It’s best to start with several inches of compacted gravel, followed by a layer of stone dust, also called decomposed granite, or DG. The DG is pulverized stone and contains small pieces along with gravel-size and sand-size particles.

What is the best material to put between flagstone?

Sand: Sand is the most common joint filler, but it is challenging to keep in place and needs to be refilled. Rocks: You can use small rocks to fill large gaps, and gravel or crushed rock can be used to fill smaller gaps. Mulch: Bark and lightweight chunks of mulch are a great option for in-between flagstone.

Can you lay flagstone directly on dirt?

Consider using flagstones that are at least 1-1/2 inches thick as stepping stones or patio flooring. With the latter, flagstones can be laid directly in soil or a bed of sand. Thinner slabs should be laid in wet mortar or concrete to prevent cracking when stepped on.

How much does a pallet of flagstone cost?

Flagstone pallet prices range from $600 to $2,200, or $0.20 to $0.55 per pound. Pallets weigh around three to four tons. One covers 210 to 560 square feet, depending on the dimensions of the stone.

Do you need sand under flagstone?

Dry-laid flagstone simply means that the flagstone pieces are placed on a bed of sand and gravel. It is recommended that a patio or walkway base be at least 3” deep, then filled with a layer of compacted gravel covered with coarse sand.

Do you seal flagstone?

All flagstone is subject to water stains, particularly in areas where the water supply is alkaline or contains minerals. For this reason, all new flagstone paving should be sealed upon completion. A sealer fills the pores in the stone and repels spills.

How much space do you need between flagstone?

You don’t want them too far apart so that it feels awkward to walk along your path. Make required adjustments and then begin adding the other stones at one end of the walkway. Position them around the larger stones in the middle to your liking, being sure that the gaps between each stone are around 1″ or 2″.

Is flagstone cheaper than pavers?

On average, yes, flagstone costs around $2 to $3 per square foot while pavers range from $3 to $6. However, in the end, the flagstone flooring project costs more than pavers. The overall material costs a bit more, and the labor to install it’s pricy too.

How much area does a pallet of flagstone cover?

The average thickness variance on a pallet is 1½” to 2¼” and an average pallet weighs about 3,500 pounds. The approximate coverage per ton is 80 – 90 sq. ft. and approximately 4 – 12 sq.

What kind of sand do you put under flagstone?

Polymeric sand can be great and can prevent weeds and grass from planting between stones, but be sure the spaces you’re filling between your stones are no wider than 1-1/2” and ideally as deep as the height of the stone to be sure the sand sets. Wide and shallow spacing can cause sand to crack and loosen.

How do you install flagstone over dirt?

Because flagstone is relatively heavy and since it’s acid resistant, it can be laid directly on dirt surfaces. This is accomplished by simply smoothing out the soil, placing the stones, leveling them out, filling in the gaps, and piecing them all together.

What mortar is best for flagstone?

Thinset Mortar Large-bodied stones such as flagstone generally require a minimum trowel notch of 1/2-inch, which provides sufficient mortar for the flagstone to use as a bed.

How do you level flagstone?

Leveling the stones to one another can best be accomplished using a length of a 2×4 that reaches across several flagstones at once, maybe 4, and a rubber mallet. As you set each stone, level it with some loose gravel insuring that the stone is totally supported on its bottom side.

Why is flagstone so expensive?

Factors that impact the cost of flagstone Some flagstone is more expensive because it is difficult to obtain or limited in availability. For example, bluestone mined in Connecticut will cost a great deal to ship to California because it must be shipped across the entire continent.

What is average cost of flagstone patio?

The cost to install a flagstone patio averages between $15 and $21 per square foot. Expect to pay anywhere from $750 to $8,400 for a 50- to 400-square-foot patio. The total depends on the location of your project, the amount of flagstone needed and the square footage you’ll need to cover.

Are there different types of flagstone?

Flagstone is a term used to describe flat pieces of stone that have been quarried and cut into various thicknesses. Flagstone landscaping rocks include quartzite, slates, and sandstones.

What to put between stepping stones?

There are creeping plants that will adapt to any level of soil moisture. Some creeping perennials, such as Blue Star Creeper, Golden Creeping Jenny (pictured below) and Mazus prefer or will tolerate consistently moist or damp soil. Others, such as Sedums (Stonecrop) and Creeping Thyme prefer a more well-drained soil.

Does stone dust get hard?

Does stone dust get hard? Yes, it does and this is one of the reasons people use for wanting to apply it in their installations. But this is not a good reason to use it. Stone dust does not drain well, keeping water sitting above it and below the product installed while the water very slowly if ever drains through.

How do you keep flagstone from peeling?

To help prevent spalling, outdoor flagstone should be coated with a sealer specifically formulated for natural stone. The sealer inhibits water from getting into and under the surface of the flagstone. If your patio has begun to shed layers, Lesslie says, remove loosely clefted pieces before sealing.