First step is to dig out the space for the supporting the slab. The slab is framed from 2x6 so the slab will be 5.5 inches deep. The excavation is about 7" deep. The last inch or so was into sandstone bedrock. I filled the excavation with 1.5 inches of sand, leveled it, placed a vapor barrier, put a little sand on top to keep it in place and then set in the forms.
The slab will be 60" square and be reinforced on the bottom with 2, #4 rebars running underneath where the block walls will eventually go, and #10x8" wire mesh on top.
Here is the slab placed and finished at the end of Day 1. those are #4 dowels placed in what will be every-other block cell (16" o.c.). The slab is broom finished where the block will go and steel troweled smooth in the center, which will remain exposed.
Oh, and pulling out the old fence post was a bear!
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