Define Gross Floor Area in Areabook

Specify the boundaries to calculate gross floor area for use on the floor area tag.

Click Quantification tab Areabook Extension panel (Add/Edit Floor Area) to open the Add/Edit Floor Area dialog.
Click the Gross FA tab.
Adjust the gross floor area information as defined in the table below.
Click OK to update the floor area tag and close the dialog.

Name	Description
Calculate Gross Floor Area
Method of Calculation	Specifies how the gross floor area calculates. Manual selection requires using the tools under the Add Gross Floor Area section to select drawing elements to generate area. Otherwise, select GFA=CFA+NRA to calculate the gross floor area as the sum of construction floor area and net room area. Note: Only one floor area type can use a formula calculation. The remaining two must use manual selection tools.
Add Gross Floor Area
Use View	Specifies the view in which you will select drawing elements to generate area.
(Contour Detection)	Detects closed contours from walls, lines, arcs, circles, or room separation lines. You only need to select one element which is part of a closed contour. Select Finish in the Option Bar to continue.
(Closed Contours)	Allows you to manually select closed the contours of lines, arcs, circles, or room separation lines. Select Finish in the Option Bar to continue.
Gross Floor Area
(Delete Rows)	Deletes the selected subarea row.
(Highlight Selected)	Opens the view to the selected area.
Level	Displays the level of the subarea.
Name	Displays the name of the subarea.
+/-	Specifies whether the subarea is added to or subtracted from the gross floor area.
GFA	The calculated gross floor area for the subarea.
Room Enclosure	(DIN-Standard Only) Room enclosure sectors defined as either: Regular case (R): covered and enclosed sector in full height on all sides. Special case (S): all other sectors.
Comment	User defined comments for the sub area.
Total	The currently calculated gross floor area
(R)	Sum of the calculated area for the regular case subareas.
(S)	Sum of the calculated area for the special case subareas.