Bulk Storage Facilities
Post-frame buildings accomodate higher wall forces.
Bulk storage refers to the storage of a relatively large quantity of a particular material or commodity such as cement, sand, salt, fertilizer, fruit, a vegetable, seed, feed, cotton, straw, aggregate, etc. If a bulk storage building wall is used to contain the stored material, that wall must be designed to resist the resulting horizontal pressure which is directly dependent on the height of the stored material. Even for stored material heights of only a few feet, this pressure will be several times greater than the pressure applied to exterior walls by even the highest of winds.
Figure 8: High wall pressures and resistance of wood to corrosion make post-frame the perfect application for salt storage facilities.
As noted in the previous section, higher wall forces are easily accommodated in post-frame building design by altering post size and/or spacing. Post spacing is generally dictated by the spanning capability of the structural material used to contain the bulk material.
When it comes to storing fertilizer, salt and other corrosive materials, post-frame buildings are almost always the