curtain panel grid and mulion

[senosatrio666]

this might be a dumb question, so what I want is for the curtain panel size to be 25x25. but when I put mullion for structure it "consumes" the left and right panel and so it becomes 20x15 to adapt the mullion (attachment for image). I tried everything I know (and search for some tutorials regarding this thing) but doesn't come up with any solution. Am I doing something wrong here or is there any way to do it?

[Alfredo_Medina]

Open the curtain wall mullion family. Most likely the profile is not intersecting the reference planes properly. See the highlighted note in the mullion template: 

[senosatrio666]

Hello, I just tried making a new profile mullion, I just found something, correct me if I'm wrong,  so there's no way for me to not make the mullion to trim the curtain panel right? Or am I drawing the profile wrong? (or are there any settings I miss?

[ennujozlagam]

share curtain wall here so we can check?

[senosatrio666]

here is the file. currently, I'm just messing around and trying to figure out how to do it properly before the final product but the idea is there

[senosatrio666]

here is the file. currently, I'm just messing around and trying to figure out how to do it properly before the final product but the idea is there.

[Alfredo_Medina]

A typical mullion looks like this. I hope this helps: