Holes are typically drilled into cold-formed steel sections to meet the requirements for installing technical systems in buildings. These drilled holes can impact the load-bearing capacity of the sections, a factor that has been studied and incorporated into design standards. In addition to evaluating compression and bending capacities, it’s crucial to also address the effect of these drilled holes on shear strength in design considerations. This paper, therefore, aims to explore how drilling, specifically circular holes, affects the shear strength of a common structural section namely the channel section. The study focuses on widely used sections in the market, with materials and design methods following Australian standards. The findings will help evaluate how the size of circular holes influences the shear strength of channel sections. Additionally, the paper provides recommendations for selecting hole sizes to assist designers in considering the shear strength of perforated sections.