When it comes to materials, patios are made of pretty much one of six basic materials. It's what you do with these materials that can give your outdoor surface an individual look or personal expression. The material you choose will be determined by personal preference, the location of the patio, your budget, and the size of the outdoor space, and what's available in your area.
Before starting a patio project, check local building codes for setback and other requirements. Make sure to prep your patio area thoroughly prior to installation to allow for proper drainage and to make sure the patio slopes away from the house.
It would be hard to find anything more versatile and adaptable than concrete for a patio floor. This time-tested recipe combines a mixture of sand, water, cement, and gravel and offers even more options than brick.
By using well-constructed forms, concrete can mold and conform to nearly any surface shape. It's durable and easy-to-maintain finish can be:
- Colored or tinted
- Decorated with inlays
- Surfaced with other materials, including pebbles (aggregate)
For thousands of years, brick has been made by firing a mixture of clay and other materials in a kiln. It is sturdy, lasts a long time, and has a neat, classic look that goes with many landscape and architectural styles. Many homes are constructed of brick or mix it with other materials. Versatile, it can be used for patio floors along with pathways, for walls, and as edging. It works for both formal and rustic landscape or hardscape features and house styles. Brick bonds or patterns offer different looks. Popular patterns include herringbone, running bond, and jack-on-jack.
Flagstone is a popular choice for patios and front entries and is available in various colors and stones, depending on the quarry and area in which you live. The large, flat slabs of stone are usually 1 to 3 inches thick and are identifiable by their irregular shapes. Flagstone has a slightly roughened surface, which will provide good traction when wet.
Flagstone types include:
Many have names that reflect the region or color, the geological classification, the quarry, or can be made up. For example, moss rock is a common name for a New Mexico stone. While stone masons know it's a type of sandstone, it could be sold by a quarry or dealer under a different name entirely.
For patio flooring, flagstones need to be at least 1 1/2 inches thick and should be laid directly on soil or a bed or sand. Thinner slabs can also be used but will need to be laid in concrete or wet mortar to prevent cracking.
At one time, concrete pavers were primarily available only in blah gray or off-pink squares, which made them look somewhat institutional. Now available in more natural-looking colors and textures, pavers can be made to look like brick, cobblestones, or cut stone.
Interlocking pavers (pictured) fit together like puzzle pieces and don't need grout or mortar.
It's best to use unglazed ceramic tile for a patio floor, leaving the glazed decorative tile for edges and accents. Glazed tile has a smooth finish, and when it gets wet, can create a slippery, unsafe environment.
The three kinds of unglazed tile for patio surfaces are:
- Porcelain: Fired at a high temperature, these tiles are stain resistant and tough.
- Terracotta: Rustic looking, but porous and best for mild climates.
- Quarry: Textured tiles that offer traction without too much unevenness.
Sealers and coatings or enhancers will protect the outdoor tile from stains, wear, and moisture while retaining or enhancing their natural color.
Also known as stone tile, cut stone is similar to flagstone although it is cut into square or rectangular shapes. Because of its geometric form and layout, cut stone is used for more formal applications than uneven flagstone. It has smooth faces and square edges, and can be laid in even rows or spaced apart, with a ground cover or loose material filling the gaps.
Cobblestones, or stone blocks, are also sometimes referred to as Belgian blocks. Cobbles are usually used in small areas or as edging for other materials, like brick, granite, or flagstone.
Once considered a choice strictly for side yards or small areas, loose materials are gaining in popularity for patio surfaces, especially in regions that are experiencing drought. Why? Homeowners and dwellers are replacing thirsty lawns with more water-wise alternatives, which includes loose materials. Also, they are easy to work with and fairly inexpensive.
- Pea gravel or crushed stone
- Aggregate stone
- Bark mulch
- Rubber mulch
- Decomposed granite
Mixed materials can break up a large area, creating more visual interest than just one material. Combinations are endless, although should be well-planned and not haphazard. Materials can include brick, concrete, flagstone, pea gravel, pavers, and tile.
Code Info and Resource Center. Mecklenburg County Government.