A quantity takeoff, also known as a construction takeoff, is the process of analyzing drawings and models to list and measure the materials and labor needed to complete a project. Companies use QTOs to estimate costs and define accurate project budgets. The QTO is generated during preconstruction planning at the earliest stages of a project.

Quantity take-offs (QTO) are a detailed measurement of materials and labor needed to complete a construction project. They are developed by an estimator during the pre-construction phase. This process includes breaking the project down into smaller and more manageable units that are easier to measure or estimate.

2024年1月1日 · This paper introduced a novel BIM-based QTO/QPC system, particularly for the structural and architectural disciplines, to automatically calculate, list, extract, store, and visualize the QTO outputs after improving their precision and consistency.

工程估算由评估师在施工前阶段完成研发。 这种计算是用来做投标范围评估的。 评估师根据设计图纸和具体细节来确定数量。 Holm，Schaufelberger，Griffin和Cole这样定义QTO： QTO是工程总价估算中最沉闷和耗时的部分。

Revit结合QTO产生数量的方法，则需透过六个步骤进行，各步骤说明如下所述。

2018年9月20日 · Quantity take-offs (QTO) are usually performed at different stages of the project and with different purposes (e.g., for cost estimates and auditing). The conventional approach to perform a QTO represents a time-consuming and error-prone process.

2024年12月11日 · A quantity takeoff (QTO) sheet is a comprehensive document that lists all the materials, labor, and equipment needed for a construction project. Estimators use project …

2017年1月1日 · Building Information Modeling (BIM) software has allowed the industry to begin to move toward BIM-based quantity take-off (QTO) and estimating [1]. Autodesk Revit, Bentley, Vico, Assemble and Autodesk Navisworks are just a few of the programs allowing the industry to shift toward BIM-based QTO and estimates.

Berdasarkan perhitungan Quantity Take Off (QTO) pada pekerjaan struktural menggunakan metode BIM 5D dalam proyek pembangunan Gedung Kondominium Hotel 8 lantai, dapat disimpulkan bahwa penerapan konsep BIM meningkatkan ketepatan perhitungan volume pekerjaan struktural, dengan deviasi rata-rata untuk berbagai pekerjaan seperti struktur balok (2 ...

ecara umum QTO adalah proses yang mencakup identifikasi item dan hubungan pada gambar, memperoleh dimensi dan menghitung satuan pengukuran seperti panjang, luas,