Establishment is very important, especially for the foundations of any building or house. In the post you will have the chance to learn something more about the spread footings and the pre-construction details. Spread footings are mostly used in the residential buildings because their bottoms are wider. Thus, this wide part gives greater support and stability to the building. Normally, there are few factors that should be considered before the construction. There is a sub-type of spread footings which has levels and is called a stepped footing.
Establishment of Spread Footings
See the pictures below for better ideas for spread footings.