A system and method for building foundational bases for a post frame building. The system includes a plurality of foundational base molds which are positionable in individually dug holes, defining the foot print of the building, where the molds are positioned spaced off the bottom of the holes. The molds can be rigidly tied together to allow for uniform alignment of the individual molds. Upon alignment, concrete is poured into and through the molds. Once sufficiently hardened, the molds are removed, revealing the foundational bases, which include an integrated footer and column base.