Abstract: A unitary fence corner post assembly having a brace member welded to medial portions of a main post to extend laterally therefrom and a strut welded between the main post and brace member. The main post, brace member, and strut are constructed of square steel tubing and a steel first stabilization plate is welded to the main post and brace member to extend along the main post from the brace member substantially three-quarters of the distance between the brace member and the lower end of the main post. A notch is formed in the upper edge of the first stabilization plate to extend a distance along the main post and the assembly further includes a second stabilization plate extending through the notch and welded to the main post, the brace member and the first stabilization plate. An end portion of the brace member is downturned and and square anchor plates are welded to the extensive end of the brace member and to the lower end of the main post.