[esbstuff]

On the left side where the wall is, any area that did not have 20 years of compacted fill, I put in some 4 inch clean crushed gravel, so no settling would accrue. All the floor was coated (and packed) with 2" minus for a solid floor base.

And did I say I lots of concrete?

10"x12" footers, 6" walls, 100' of 4' wall and 60' of 2' wall. Topped off with an approx 6" floor... I also put in 2 20"x20"x16' troughs where the 2 post lifts were going to be someday. What portions of floor that did not have a wall, we poured the floor and the footer at the same time to have improved strength. the troughs were also poured along with the floor.

And in case you haven't noticed yet, lots of rebar too. We used 2000 pounds of 3/8 rebar in the footers, wall and floor.

The concrete guy is not known for the straightest footers, but now 8 months in no cracks in the floor or walls...