On 12 Mar 2005 04:03:57 -0800, "Bugs" vaguely
proposed a theory
.......and in reply I say!:

remove ns from my header address to reply via email

I think that for most backyard sheds, you are being a bit harsh. I
have never had a compaction test done for shed soil, although I did
for a house.

Maybe we are lucky. This particular sand we use sets almost like
sandstone even without compaction if you wet it well and let it dry.
Compacting it while damp really settles it down, and unless you have a
critical application hardness testing is not done.

I agree with those comments. If you ever plan to install concrete, then
the subgrade needs to be compacted to 95% of Standard Proctor, the fill
material should be Base Course, as we call the graded material on this
side of the pond, also at 95% Proctor. If you don't know what I'm
talking about, you should hire an engineering firm to set the grades
and inspect the work.
Expensive, yes, but cheaper than doing it all over when everything
fails in a few years.
Bugs