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In the construction of modern buildings, tall buildings and other industrial structures, pipes and ducts are installed to accommodate essential services such as water supply, sewerage, air conditioning, electricity, telephone and computer network. These pipes and ducts usually run horizontally and vertically. Pipes and ducts that have horizontal layout and run under the ceiling may sometimes penetrate through RC columns. These openings can cause RC beams to become weaker in load resistance due to shear and bending moment. This depends on the size, shape and location of the openings. The beam will reduce its stiffness under service load with higher deflection. Besides that, loads higher than the design service loads or chemical processes due to aggressive environmental conditions can damage the existing structures. This research focuses on static loading on reinforced concrete deep beams with openings. This research also studies the prospect of strengthening the beams by using external bonded CFRP in different combinations or arrangement to regain bending capacity that was lost due to the openings. The openings are circular, rectangular, square and elliptical shaped. Nine identical beams with and without opening were cast and tested under static loading with several different arrangements of CFRP sheets to regain the lost strength. Carbon Fibre Reinforced Polymer (CFRP) can increase the strength lost due to large opening with appropriate strengthening configuration and location of the CFRP. The usage is maximized by applying the CFRP perpendicular to the expected crack pattern on beams with large opening for bending zone. [ABSTRACT FROM AUTHOR]