Wall area

[helen60932111PLHPF]

Hello
I have a reference

Wall Types Area Sum

Hi all, New to Dynamo… Probably a very simple problem to address. I’d just like to total the area of specific wall types which will be exported to excel and used for building cost estimating. Problem is, the Area will not list when using GetParameterValueByName. Any help here? I will be repeating the process for each wall type, floor type, ceiling type, window type, door type ect… [image] Thanks!

I’m sorry I asked a very simple question
I try to calculate the area of the wall, do not know where the problem lies?

[Johannes_Meiners]

look at the element parameters,

in my german revit it is called Fläche":

[helen60932111PLHPF]

Thank you very much for your reply!

The problem has been solved