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hello gang.
just looking for some info from the knowledgable CP faithful.

I would like to build a patio/firepit area in my backyard.
Not sure if I am going to use patio blocks or pouring cement. *this is where input would be appreciated*

The patio will be a 20ft X 20ft area with the firepit in the centre.
My main concern is prepping the area.
Sod removal is going to be the biggest challenge. Anyone have any great ideas as to how to remove the sod without digging up 10 inches of dirt?
How deep does one go down to ensure a level surface.
Does one put a Pressure treated lumber border around the area.

Any general input would be great. Just not that knowledgable about this kinda thing.

thanks