Foundation frames are lightweight, simple to use and offer a fast and efficient system to support mesh in concrete footings. The frames are easy to assemble, with a clip that tie the top and bottom mesh together and take the place of ligatures, stirrups and bogar clips. The frames come in 3 easy to identify sizes, 150/200mm, 250/300mm, 350/400mm and can be used on 8mm, 11mm and 12mm mesh. The frames clip onto the main longitudinal wire and the cross wire of the trench mesh at 900mm intervals creating a rigid frame. 6 metre lengths can be quickly assembled in 2 minutes outside the trench for placement after the trench is prepared. The bottom layer of the mesh is supported 50mm of the ground eliminating the need for trench mesh supports or bar chairs.