They can be used virtually on any type of surface. Tiles are very comfortable to walk on and relatively smooth which makes it safe to use. Hence, there will be little fear of people tripping on any part of it. In addition, patio furniture will sit squarely on the tiles surface, that may not happen if you use another type of patio materials.
Intended use of the patio : Decide how you want to use the patio. Is the patio mainly for alfresco dining or sunbathing or relaxing with a book or all three? The intended use will dictate the size and location of the patio. A patio mainly for dining is best placed where there is some shade so that diners can keep cool on warmer days and seek the sun when the weather is cooler. A patio intended mainly for sunbathing needs to be in a spot where it's sunny all day. If you want young children to safely use the patio, it needs to be somewhere you can see them from the house.
The materials you choose should always blend with the surroundings and other materials used in the garden or landscape, while providing the right surface for the intended use of the patio.
Nowadays, there are ample patio materials to choose from for your patio surface. Some of the more popular are available at landscaping centers or home improvement depot. They can be used for the simple and complex projects alike and are not confined just to the patio. These new types of patio materials can also be used for driveways, walkways and retaining walls along with permanent fixtures such as, plants, flowerpots and patio furniture.