Posted 7/25/2011 18:08 (#1879385 - in reply to #1878981) Subject: 2' forms are what they use.
SW MN
Just had mine poured and they used 2' forms. this way they did't have to dig a footing. I dug the entire site out to the point where the 2' forms ended at the top of the height I wanted. I don't want to have to do it over in 10 years.
Use alot of rebar. mine had 2 rows of 3 and then 2'square on top for a 48x12 ring bin.
Concrete forms for grain bins
