Which of the following is NOT a listed ICF construction type?

• A. Flat panel
• B. Post and beam
• C. Foam block panels
• D. Grid block

Answer: (C)

The concept being tested is knowing the standard categories used to describe ICF construction systems. In common classifications, ICF forms are described as flat panel systems, grid block systems, or a post-and-beam approach integrated with foam forms. Each category reflects a distinct way the foam forms are arranged to create the wall and carry loads.

The option described as foam block panels isn’t a recognized separate category in these listings. Foam blocks refer to the block-form approach, while panels refer to a continuous panel system; combining the two into a single named category isn’t how the standard types are defined. Therefore, it’s the one that isn’t listed as a separate ICF construction type.