The entire thing should be flat on the ground level and the patio blocks buried UNDER all of it (and level too) Confused? We were too - Dennis was awesome at helping me understand the patio block thing. All that leveling is the hardest part - but this too shall pass, get it right and it will all be worth it. Keep a cold beverage handy and go out to dinner so you don't strangle each other - its frustrating work.