Renovation-Headquarters Banner


Flagstone Versus Concrete For A Patio

Question: Would flagstone be cheaper than a cement slab if doing a 10x20 patio?

Answer: A 10' x 20' patio in concrete 6 inches thick is 100 cu.ft of concrete or aprox. 4 cu. yds at 4 inches thick it is aprox. 3 cu. yds. Depending on where you are you will pay between $125 and $175 per cu. yd. Then you need material to make a form, and wire mesh to help prevent the concrete from cracking. You still have to prepare a good base for the concrete and you will need some tools such as a float to finish the concrete properly.

Flagstone requires a sand base properly compacted. Some people like to mortar the joints. Quality flagstone will cost about $5 to $10 a square foot, depending on the thickness and where you are located. But the installation is easier and you can do it at your own pace.

Additional information on building a concrete patio.