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