Flagstone is a natural stone that is taken from the earth. It can be used for many of the same applications as interlock, which include:

The one place where flagstone makes the greatest impact is on the front porch.
When installed on an existing concrete surface, flagstone is applied on a thin-set cement that will ensure stability and longevity of your stone.

There are many different types of stones that closely resemble the look of flagstone.
A drive down to your local landscaping store will give you a good idea of what else is out there. A very popular alternative to flagstone is a man-made stone that is square cut and comes in various sizes. There are a few examples of different types of stone in our gallery.