In the barn design, be sure to consider ventilation. Ridge and eave ventilation will make the barn cooler, reduce roof corrosion and remove excess moisture given off by the hay. For those lower-value hays that you think won' t justify a barn, below are four rules for outside, covered storage that will keep losses as low as inside storage. Select a site that slopes away from where the bales will be stacked, with access to an all-weather road. Pyramiding is better where bales have variable densities.
More bales together means less total tarp and rock cost.