Is it possible to calculate the area of the three marked, external window planes?

[rcakstins]

Operating system used: Windows

 

[rcakstins]

I need to automate this process.

I have 700 windows of different sizes in my project.

Schedules - Add Fields - Parameters & Properties - There is not even an outside reveal dimension option available.

[CosminF]

Hi,

A (maybe cumbersome) workaround I see would be to define an expression as a formula, something akin to:
(Reveal depth x window height) x 2 + reveal depth x window width = the surface you want per window

Unfortunately I do not know the best way to go around creating this, maybe somebody else can chime in.

edit: I have tried to do it but I cannot find in the wall reveal available as an autotext in the expression editor.