All Sure Safe EFS foundations are: Individually engineered specifically for the manufacturers model and site where the home is to be installed. Specifically designed to a number of variables, including; length, width, height and configuration (footprint) of the home, roof pitch, height above grade. Engineered to meet specific loading conditions; dead loads, roof loads, floor loads, wind loads, both for lateral and uplift. Engineered to meet specific soil conditions for; type, bearing capacity, resistance to sliding and pull out (when considering ground anchors), frost penetration depth. Ideal for foundation repairs. Simple implementations for all foundation contractors.