This document presents a comparative study on the flexural strength of M-40 grade concrete beams with different percentages of lapping (overlapping) of reinforcement bars. Cubes and beams were cast and tested according to Indian standards. The compressive strength of cubes increased with the use of manufactured sand as a replacement for natural sand. Beams with 0%, 25%, 50%, and 100% lapping of bars were tested under two-point loading. Cracking and ultimate loads increased with higher lapping percentages, with 0% lapping exhibiting the highest strength. Higher lapping percentages led to higher deflections at given loads. In conclusion, manufactured sand can be used as a replacement for natural sand in concrete with similar properties. Higher lapping