added by louiseallrich
(7 days ago)
How it's sold. Flagstone, also called patio rock, is sold by the ton or by the pound, not per piece, and the price varies widely depending upon what type of rock the flagstone is. You can expect to pay anywhere from $140 to $320-plus per ton. The more exotic the rock, the higher the cost, so if your budget is tight, look for a common flagstone that is quarried locally.
Thickness. You will likely flagstone described as thick or thin, and which one you should buy depends upon how you want to use it.
If you intend to lay a flagstone pathway without mortar, you will want to get thick pieces, or those that are 2 inches in height. Thin flagstone is less than 2 inches thick and will crack and break apart if not set into a mortared base. Thicker pieces are also often called "lay-down," because you can lay them directly down on the soil without mortar. Larger and thicker pieces are sometimes called "stand-up," because they can stand on their sides in a rack.