This document summarizes the results of an experimental study on the effect of roughness of the base of a rectangular combined footing on its ultimate bearing capacity and settlement in cohesive soil. Laboratory tests were conducted on model footings placed in a steel tank filled with locally sourced cohesive soil. Tests were performed with footing bases that were smooth and rough. The tests measured settlement under increasing loads. The results showed that rough footing bases experienced less settlement than smooth bases under the same loads, indicating that roughness improves a footing's bearing capacity and reduces settlement in cohesive soils. Prior research that found soil confinement around footings improves bearing capacity in granular soils is also cited.