Flagstone Related FAQs
People often email me asking questions related to stone work, on this page I’m going to start adding these questions and including my answer/response. Please note that all answers that I post are of my opinion only.
Do you have a question? Send it to me via “Ask Craig A Question” page.
Question: How much does flagstone cost?
Answer: The cost of flagstone varies for a number of reasons, location, type, quantity and quality of the flagstone. Here in Ontario Canada, One ton in weight is approximately half a pallet of flagstone.
The average price per ton of flagstone ranges from $250 to $450 Canadian dollars.
Question: How much flagstone will I need for a 12ft x 8ft patio?
Answer:12ft x 8ft = 96 square feet. I always recommend you buy at least 15% extra flagstone.
Adding 15% brings to total required amount of flagstone to approximately 110 square feet.
Because flagstone varies in thickness and many supplies only sell flagstone by the ton, please checkout the following table:
- Thickness 1/2″ = Coverage 250 – 300 Sq.Ft per Ton
- Thickness 3/4″ = Coverage 160 – 200 Sq.Ft per Ton
- Thickness 1″ to 1.1/4″ = Coverage 130 Sq.Ft per Ton
- Thickness 1.1/2″ to 1.3/4″ = Coverage 100 Sq.Ft per Ton
- Thickness 2″ = Coverage 60 Sq.Ft per Ton
Question: What is the usual price of labor on a job like this?
Answer: Not exactly sure what type of job you’re talking about and the cost of installation changes from business to business, location and much more. However lets say it’s installing a dry laid flagstone patio, to get a good idea on the cost I’d multiply the total square feet of the patio area by $25 to $35.
One thing that I recommend is asking the business giving you the quote/estimate for addresses or pictures of other flagstone projects they’ve completed.
Question: Is there anything I can do to keep weeds from growing up between the flagstones?
Answer: Yes, many local building stores and garden centers sell Polymeric Sand type products.
The best thing to do would be clean out the joints (a.k.a gaps between flagstone) at least 1.5 inches deep, the spread out the polymeric sand, using a broom sweep and fill all joints flush, lightly soak all joints without washing the material out. The polymeric sand will then harden, polymeric sand is designed to stop weeds and ants from disturbing the joints.