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Quantity Reference

Length

Profile Members: Length = length of the Profile Member path
Groups / Components: Length = maximum dimension of the Object's bounding box

Surface Area

All Objects: Surface Area = Sum of all areas of the faces inside the Object

Area

Profile Members: Area = Length * (greatest of Profile Width, Profile Height)
Groups / Components: Area = projected area in the direction of the smallest bounding box dimension

Note: The method of area calculation has changed in version 2.1

Volume

When it is important to know the volume and weight of a particular object, make sure that the Object is modeled as Profile Member or as a solid object. In a solid object, each edge bounds exactly two faces.

Profile Members: Volume = volume of the solid (if solid) OR area of the Profile multiplied by the length of the member (if not a solid)
Solid Groups / Components that contain no child Objects: Volume = volume of the solid (same as value calculated by SketchUp)
Solid Groups / Components with child Objects: Volume = volume the mesh (calculated by Profile Builder)
Non-Solid Groups / Components: Volue = estimated volume of the mesh

Weight

The weight calculation will depend on the unit weight data assigned to the layer that the Object is associated with. The weight will be based on the unit weight multiplied by either the length, area or volume.

Cost

The cost calculation will depend on the cost data assigned to the layer that the Object is associated with. To view the cost calculation, use the Cost Inspector Tool from within the Quantifier.