All data associated with a given estimate is stored in a QTO project.ĭWF stands for Design Web Format™, which is an open, secure file format developed by Autodesk. Both DWF and non-DWF files (DWGs, PDFs, TIFs, GIFs, and JPGs) can be used as source files. Using QTO, estimators can combine multiple sources of two-dimensional (2D) and three-dimensional (3D) design data and generate quantity takeoff to create a cost estimate. QTO gives estimators the tools to perform digital quantity takeoff, which is faster, easier, and more accurate than paper-based methods. Traditionally, construction cost estimators have used paper-based methods to perform quantity takeoff. The process of measuring quantities of materials from drawings and specifications prepared by architects, engineers, and other designers is known as quantity takeoff. Understanding Quantity Takeoff (QTO) Concepts and Tools
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