This document discusses the working stress design of reinforced masonry flexural members. It outlines the assumptions of the design method, which include plane sections remaining plane after bending and a linear stress-strain relationship for both masonry and steel. Equations are provided to calculate the balanced reinforcement ratio, as well as the procedure for sizing the cross section and reinforcement given design moment values. An example problem demonstrates how to design a reinforced masonry beam section to resist a given bending moment.