When performing model takeoff, Quantification extracts embedded design data, and automatically maps it to Items in your catalog. Each Item type (such as Linear, Area or Volume) is mapped to a corresponding default object property. For example, by default, Linear items are mapped to Length, Area items are mapped to Area and so on. This is the property that is measured during takeoff.
In some cases, data cannot be mapped automatically as objects do not contain the default property used for automatic mapping, or you may want to change the default property mapping. In this case, you can customize and create new property definitions for your project. Either individual or global properties can be modified and applied to both 2D and 3D takeoff data.
For more about properties in Quantification, see Working with Formulas and Variables.