Impact of Construction Material Wastage on Project Cost and Project Delivery in Nigerian Construction Industry

Materials management in construction projects is an important function that significantly contributes to the success of a project. Poor management of materials on site during construction process would influence the total project cost, time and quality. The study examined the causes and impact of construction material wastage on project cost and project delivery in Nigerian construction industry. The specific objectives were to: Ascertain the causes of construction material wastage in project delivery in Nigerian construction industry and determine the impact of construction material wastage on project cost in Nigerian construction industry. Research design was descriptive survey research. Study Area was Enugu State. Sample size of 378 respondents was drawn from 503 population of the study using Taro Yamane sample technique. The research question was answered with simple percentage, mean and standard deviation while methods of data presentation are table and simple percentage. The hypotheses were tested with ANOVA and single regression analysis. The following are the major findings of the study: The study revealed that there is significant cause of construction material wastage in project delivery in Nigerian construction industry (t – statistics (6.716) >its P-values (0.000) and construction material wastage has significant impact on project cost in Nigerian construction industry (-8.446) > its P-values (0.000). The study recommended that Nigerian construction industry should improve in the standard of the contract documents to avoid wastage resulting from poor documents, design changes, and changes of the client’s requirements and avoiding design errors should be done.