This study is concerned with investigating the punching shear provisions of ACI 318-08 with emphasis on Equation (11-32) of this code. For reinforced concrete slabs and footings, shear force resisted by concrete is taken as the smallest value evaluated from ACI Equations (11-31), (11-32) and (11-33). Based on the experience of the author in designing isolated footings, it is noticed that Equation (11-32) has never yielded the smallest shear capacity in isolated footing design, thus making this equation redundant in terms of punching shear design. In this work, Equation (11-32) is to be investigated theoretically and parametrically to prove its redundancy in terms of practical design of isolated footings
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