By Randall Greenfield
Walls or no walls? This question inevitably comes up when considering storage options for ensiled forages and grains. The answer, of course, is always “it depends.” For any specific situation, the ultimate solution could be different than the next. For the purpose of this article, however, I’ll make some generic comparisons.
For the first comparison, we will compare building storage for 2,000 tons of silage as a drive-over pile and as a two-walled bunker silo.
We will use 6-inch-thick concrete as our base material and assume a cost of $4 per square foot.