Glass fibre-reinforced polymer (GFRP) bars are increasingly considered as an alternative to conventional steel reinforcement in concrete structures where corrosion resistance and reduced reinforcement weight are important. This study experimentally compares the flexural response of M25-grade concrete beams reinforced with conventional steel bars and GFRP bars. Beam specimens of 150 mm × 150 mm × 1000 mm were cast and cured for 28 days. The fresh concrete was evaluated through slump, compaction factor, flow table and Vee-Bee tests. The beams were subjected to incremental flexural loading, and load-deflection response and calculated flexural stress were recorded up to a maximum recorded load of 40 kN. At 40 kN, the steel-reinforced beam showed a mid-span deflection of 2.495 mm, while the GFRP-reinforced beam showed 2.415 mm, corresponding to approximately 3.21% lower deflection for the tested GFRP specimen. .