Room-Bounding Elements

The following elements are bounding elements for room area and volume computations:

• Walls (curtain, standard, in-place, face-based)
• Roofs (standard, in-place, face-based)
• Floors (standard, in-place, face-based)
• Ceilings (standard, in-place, face-based)
• Columns (architectural, structural with material set to concrete)
• Curtain systems
• Room separation lines
• Building pads

You can indicate whether many elements are room-bounding by changing element properties. For example, you may want to define toilet partitions as non-bounding because they are not usually included in room computations. When you specify that an element is non-bounding, the element is not used when Revit computes the area or volume of the room or any adjacent rooms that share the non-bounding element.