Or the dealer specs a storage bin for a dryer application this can happen.  There is a finite number of times that a bin is designed to be emptied; as the number of design fill/empties increases thicker steel and/or stiffeners are used.  If the dealer specs a storage bin for a dryer which is typically emptied more than once per year, the additional fills will cause premature failure; this is why commercial bins are more expensive than farm bins since they are typically filled and emptied several times per year vs once per year for farm storage bins.