The cinder blocks
Looks good. O.k. I'm happy and so is the building inspector. So, I ask "Willi? Aren't there supposed to be two rows of cinder blocks?" He flattens the palms of his hands towards the ground and says "I know what I'm doing." I am now wading in to a sea of communications problems. But only my toes are wet.
For a simple, quick technical explanation on concrete slab construction, click here.