The method adopted to calculate the effective web width for shear applies both for round or rectangular sections. It works only with the shear core part of the section and will remove any length occupied by holes along the depth of the section. The width will be calculated considering only the webs that extend from top to the bottom part of the section and only the minimum width will be considered. The total width will be the sum of the widths of the different webs found.

In the case of round sections, the diameter of the section will be used, removing the length of any existing hole.