On 4/23/2016 8:02 PM, Keith Nuttle wrote:
I was under a house a couple of weeks ago, that someone had actually
poured an area of concrete under the house to provide an area exactly
what you area for exactly what you are talking about.

Properly prepared, a slab of 2 to 3" thick would seem to me to be
sufficient for a storage area under the house. You would not driving
cars on it and you will not be storing any heavy equipment.

This is the solution that the OP wants, and the only viable one for cost
effectiveness and longevity.

When I build a house with a crawlspace foundation, I always pour what we
call a "mud slab" (3 - 4" of un-reinforced concrete) over the exposed
ground in the crawl space.

(I also put in French drains as part of the drainage plan, but that is
another matter)

Inexpensive, effective, can easily hold most yard items for storage,
makes for easier access, cuts down on mold, mildew and smells, and only
requires a minimum "finish" and leveling of the surface.

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