Typically though flagstone under one inch in thickness is not recommended as it may crack or break with too much weight or foot traffic.
How to install flagstone over concrete steps.
This flagstone patio installation video will teach you everything that you need to know for laying stone in concrete.
Installing stone or brick over an existing concrete pad is not very difficult but it will take some time.
You cannot use normal thinset mortar with natural flagstones because of their varied thickness which means a bed of sand and concrete is required to cushion the stones and leave the finished surface uniform and flat.
For flagstone that is two inches or more in thickness one ton will cover 70 to 80 square feet.
Remove broken pieces of slab brush off debris and use a level to ensure that the cement sections are flat and even.
They are more difficult to install than regulated flagstone and require significantly more physical effort.
For the mortar to grab you must either scarify the concrete with a grinder or add a scratch coat like we did.
For flagstone that is an inch to an inch and a half thick one ton will cover 90 to 100 square feet.
Order 5 percent more for breakage.
In addition installing stone or brick over a concrete slab can cover unsightly cracks or breaks in the concrete.
Concrete makes a serviceable patio walkway or driveway but with stones and brick you can add color and design for an aesthetically.
It ranges in size from about 1 foot to 4 feet across and comes in different thicknesses.
Whatever type of flagstone you choose it must be at least 2 inches thick to avoid breakage.
Cut stone is flagstone finished with straight edges and square corners.
Step 4 install the lath photo by kolin smith.
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Prepare the cement walkway for the flagstone.
First lay lath over the landing and steps and use tin snips to trim sections for the sides that overlap the steps by 2 inches.
A ton of stone covers about 120 square feet.