Perbandingan Quantity Take Off pada Suatu Proyek Menggunakan Aplikasi Graphisoft Archicad dan Autodesk Revit

Abstract

The Quantity Take-Off (QTO) calculation is one of the crucial stages in construction project planning, as it affects cost estimation, project duration, and material usage efficiency. Errors in QTO can lead to waste, delays, and budget discrepancies. The development of Building Information Modeling (BIM) technology enables the QTO process to be carried out more accurately and efficiently through three-dimensional modeling. This study aims to compare the QTO results of structural works (columns, beams, and tie beams) and wall volumes in a residential building project using two BIM software applications, namely Autodesk Revit and Graphisoft ArchiCAD, and to evaluate the differences between the results obtained. The research employs a comparative method with a quantitative approach. Data were obtained from the project’s design drawings and Bill of Quantity (BoQ), followed by re-modeling in both BIM applications to generate QTO data. The analysis results show that the concrete volume generated by Revit is 0.15% lower than ArchiCAD, the reinforcement weight is 0.27% smaller, and the wall volume produced by ArchiCAD is 0.37% lower than Revit. These differences arise due to variations in the internal calculation systems and modeling techniques used by each software. Based on the analysis, the application of BIM has been proven to enhance accuracy, consistency, and efficiency in quantity calculation compared to conventional methods, while reducing the risk of errors caused by human factors. The results of this study are expected to serve as a reference for construction practitioners in selecting the most suitable BIM software according to the project’s needs and characteristics.