This paper presents a comparative study among three types of footings officering shape to obtain the more economical dimension of the contact surface, i.e., a comparison is realized among the rectangular footings, square and circular in terms of the contact area with soil, when the load that must withstand said structural member is applied. The models presented in this paper satisfy the following conditions. 1) The Minimum stress should be equal to or greater than zero because the soil is not capable of withstanding tensile stresses. 2) The maximum stress must be equal to or less than the allowable capacity that can be capable of withstanding the soil. According to the results, tables show that the circular footings are more economic, subsequently the rectangular footings and last the square footings.