Shear behaviour in reinforced concrete (RC) elements can improve with an adequate amount of fibres. Research has recently determined how fibres affect shear strength, but has barely focused on macro-synthetic fibre-reinforced concrete (PFRC). This paper presents the experimental results of 16 full-scale beams (eight RC, eight PFRC), 12 without transverse reinforcement. Polypropylene fibres (10 kg/m 3 ) were included. Mode of failure (MOF) in shear and behaviour throughout the loading process were studied. The results obtained with fibres showed significantly improved shear strength in the RC beams with/without transverse reinforcement. A synergy between transverse reinforcement and fibres was observed in some cases. [1], tested 12 reinforced concrete (RC) beams in 1963 at the University of Berkeley in order to investigate critical shear behaviour. This beams series covered a wide range of transversal reinforcement and span conditions. The shear research community has considered this classical beam series to be a reference for calibrating numerical models. At the University of Toronto, Vecchio-Shim [2] reproduced classical Bresler-Scordelis beams in 2004 to test the repeatability of the results obtained by Bresler, particularly for load capacity and mode of failure (MOF).