Improper way of using steel reinforcement in concrete incurs undue wastage of money in the construction projects. Wastage of rebar can be realized even at the design stage and can propagate through every stage of the construction process. The study respondents were contractor’s and consultant’s managers, designers, bar benders, supervisors, and quantity surveyors. Central value analysis, correlation, and regression analysis were conducted on the data collected, using Rebar Cad/Cam software to confirm the factors influencing the wastage of steel. The cost estimated in the bill of quantity and the final costs after the provision of the steel with any alterations were compared and the reasons for cost overrun were analyzed.