Abstract: A structure for anchoring load-bearing posts in a post frame (“pole barn”) type building on footings in post holes below grade. The structure comprises a flexible cable or similar anchored in or under the footing and extending up through or around the footing to fastening points on opposite sides of a below-ground portion of a post resting on the footing. The footing-anchored cable and the fastening points are then buried in the post hole. A method for constructing the anchor structure is also disclosed.