ABSTRACT
Site layout involves the identification, sizing and placing of the temporary facilities (TFs) at the required positions within the boundaries of the construction project site. The aim of this research is to assess the site layout practices of some construction firms in Abuja, Nigeria, with a view to improve productivity of workers in construction sites. Questionnaire was administered for the collection of data for the research. Purposive sampling technique was used to obtain the data. Relative importance index was used to determine the ranking for the various practices of site layout. Based on the research findings, 50% of the staff in the construction firms participated in designing site layout which implies that majority of the construction firms do site layout. 64.7% of the construction firms design site layout for residential buildings, 78.9% of the construction firms does site layout design for both small, medium and large projects, while 78.4% do site layout design for both short and long term project. Preparing site layout design before the commencement of site work ranked first with (RII) value of 0.785 which implies that the construction firms practiced site layout before the commencement of site work very well. While causes of occurrence of accident in construction site as a result of poor site layout practices ranked first with (RII) value of 0.575. The research recommends that site layout should be practice in other form of construction not only residential building.