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View Full Version : 4 year old clay. Over kill on the base for patio


jamie30
03-15-2006, 10:19 AM
I am thinking of using a layer of 6" stone first layer and then 3/4" crushed 6" thick for a base. This is the setting for a 24" high wall around the paved patio and back filled with 3/4"clear (because of frost) and then landscaping tapered down to the yard for privacy. In everyones professional opinion is this over kill? Remembering that this is 4 year old clay.

scagwildcat
03-15-2006, 06:46 PM
how do you put an age on clay or any soil for the matter ???? or am i missing something?

jamie30
03-15-2006, 06:55 PM
The home that is receiving the patio was built 4 years ago and i hope all the settling has occured

PSUturf
03-15-2006, 09:56 PM
You might consider putting a layer of fabric over the clay to prevent stone from migrating down into the clay

Grassmechanic
03-16-2006, 08:48 AM
The home that is receiving the patio was built 4 years ago and i hope all the settling has occured
I had a soils professor in college tell me that disturbed clay will not completely settle on it's own for 10 yrs.

steve in Pa.
03-16-2006, 07:35 PM
I would say that 12" of stone for a 2' wall is definitly overkill. icpi only recommends 10-12" of stone base for driveway pavers. I would think that the soil is settled after 4 years.

MarcusLndscp
03-16-2006, 10:07 PM
What type of wall? Rock? Block?

No matter what you do use fabric and there is no need to use 6" and then 3/4". Keep your base material the same. 6" is way to big to build a wall on. If you want the wall to heave then go ahead and build it on the clay if not dig down to hard pan