I have seen where many charge per sq foot.......I do more by the job and whats involved but I've got a question. Use flagstone set in mortar..........$25 per sq ft seems to be what a lot are charging. What is it that is included? If its 100 sq ft is the total price of the job $2500 including all material (#57, concrete, mortar, stone, labor, gas, framing etc)? Or do you tend to price it at $2500 + "x"? I'm trying to get a square footage system going.