Surface doesn't show in the Material calculation

[kien_nguyenFVYJ8]

Hello,

When I compute materials, the designed surface doesn't appear in the material list as show below. I don't know where did I miss in the model. I have created the corridor and the corridor surface but the corridor surface doesn't show in the material list table.

Can anyone please help?

Thank you,
Kien

[tcorey · Accepted solution]

Near the top of the dialog, where it offers Data Type and Surface, drop down the list for Surface, select another surface and press the big + button.