Sand under Flagstone Patio
Hi there. First time posting, have read several related posts but have been unable to find av direct answer.
I have been redoing my backyard this summer and part of the project includes a flagstone pation (away from the house). The area is 15'x15' with a curved front. I have already removed the sod and soil down to a more than needed depth. I have compacted crush to a depth of 6-7" throughout. I added sand on top (1-2" in depth) but don't think I have the right height. The stones I am using are 2-3" in depth but I have about 4-1/2" left to final height. Is there such a thing as too much sand if i add another inch or so. It would mean 3" of sand in some locations onm top of the 6-7" crush on top of hard packed clay. Please advise if I should remove the sand and add crush or if another inch or so of sand will be bad. I am worried that too much sand could allow for movement of the stones. Thanks