The implementation of hollow cores in beams is getting popular nowadays because of its practical advantages. The reduction of disadvantages in the beams with an opening is based on the engineers' knowledge and practical experiences too. Most of the researchers have started to learn about the hollow beams and also, the strengthening of these beams. Based on the reviews on various journals in the field of hollow beams, this article investigates the effect of shape, size, and position of opening and reviews the strengthening of hollow beams. Finally, it brings a judgment with the suggestions to provide hollow beams and the future scope for the research in the area of hollow beams.