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Building a patio using 20x20x1 1/2 slabs

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Posted by: from Peterborough
3/30/2012 at 7:40:32 PM

How deep do I need to excavate and should I fill in with A - gravel or sand? The area is about 10' x 30'.

Thanks

REPLIES (1)
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Date/Time3/30/2012 at 8:42:59 PM

There is a lot of different methods. I would go down 12" ( 18" would be better ) fill it with what's called 3/4" crusher run, compacting every 2". The top 1" you can use sand or crushed limestome. This alows you to level each stone easily and has good drainage, so frost won't be a problem.

Fill in the gaps between the stones with sand or poly sand if you don't want to worry about weeds.

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