A footing cleat used to construct a concrete footing with integrally attached concrete wall located thereon. In the first embodiment, the cleat includes an elongated footing member with two downward brackets attached to its opposite ends. During use, the footing member is aligned transversely over the top edge surfaces of two sideboards used to construct the footing's concrete form. The brackets extend downward over the outside surface of the two sideboards. Extending upward from the footing member is a vertical wall support member. Formed on the wall support member is a plurality of holes used to receive nails or pins that hold pieces of horizontally aligned rebar used in a vertical wall constructed over the footing. The nails or pins are designed to temporally hold the pieces of horizontal rebar in place until the entire rebar wall is constructed. They can then be easily removed so that the cleat can be disassembled from the footing.