Posted 6/24/2012 14:26 (#2447033 - in reply to #2446940) Subject: Re: concrete question
Some do the footing at grade with rebar sticking out of that that will be below the top of the floor (grade beam) I prefer pouring the entire bin as one pour. The grade beam is typically used in sandier soils that are prone to cave in and refill the footing that was just dug in.