Looking to for a new building for crop and tractor storage, recreational vehicles, or just for an extended garage? Post-frame buildings are engineered with wood frames, and use laminated columns instead of steel or concrete to support the roof structure. Compared to some other building types, post-frame buildings are a relatively simple concept. Simply put, it is a building composed of primary structural frames typically made up of a clear span truss supported by two columns. These primary frames are supported or connected by purlins, girts and sheathing. Loads are transferred to the ground through columns, typically embedded in the ground. Pole building construction simply uses fewer larger framing members to span greater distances which cut down on construction time and material cost.