[AT] OT Barn floor question

[Matthew]

A few points...

First, I use the term Amish barn loosly.  I would call the sheds  they
sell at Lowes or Home Depot Amish sheds.  There are so many Amish builders
around here the term has become generic.  AS it happens the folks building 
my barn are Amish, but the reason I went with them was they charge a lot less.

The folks building mine will do on-site building but that is much more
expensive.  They have quite the setup going, and I had a 15 week leed
time on the barn I got, built at their shop.

They say they they drop a lot of these on lawns with no problems, I have
concerns that an 1100 pound horse may go through the plywood floor.
I thought filling between the joists with cement would fix that.  If
my math is near right I would need about 1 cubic yard.

--Matthew