Estimating

Using BIM quantification tools This approach associates with the use of specialised Quantity TakeOff (QTO) software, that transfer the BIM models and their embedded information from BIM design tools into their system. Similar to the previous approach, these tools can support both the automated extraction and manual take-off features. They can generate visual take off… read more »

Managing Data Exchange Building Information Modelling offers the capability to develop project cost information with more accuracy throughout the entire building lifecycle. The key to successful use of BIM‐based costing will be the development of processes and methods within organizations. The level of detail required in a building model will vary depending on project phases,… read more »

One of the most important features of estimating in  BIM is its capability to explain building data through a 3D visual model. This representation gives its users a clearer understanding of a building project and reduces the chances for missing or misrepresenting components. Traditional costing applications by their nature have been text‐oriented – listing, tabulating,… read more »

After the scope has been analysed and broken down into construction tasks, each task must be quantified prior to pricing. Equal emphasis should be placed on both accurate quantity calculation and accurate pricing. Quantities should be shown in standard units of measure and should be consistent with design units. Assistance for preparing “takeoffs” may be… read more »