This paper presents an experimental and analytical study of the shear strength of ferrocement composite box section concrete beams. Two groups of ferrocement box beams were used. The experimental program includes seven box section concrete beams were tested using two-point loading system. Beams with expanded wire mesh showed an improvement in ultimate failure load, shear capacity and deflection with respect to beams with reference & welded wire mesh. The experimental data were used for validation of finite element models which had been developed using the Ansys 14.5 software. The analytical results showed an accepted agreement with the experimental results. Also, beams with wire mesh showed lower number of crack patterns than the reference.