NCIDQ Exam--IDFX Content

The Interior Design Fundamentals Exam (IDFX) addresses the content areas of Building Systems, Construction Standards and Design Application. Candidates are given three hours to complete IDFX. Download a PDF version of this information with more detailed content information.

Interior Design Fundamentals Exam (IDFX)


Knowledge of and skill in programming, sustainability and site analysis

20 Questions
20% of test


Knowledge of and skill in the application of design theory and the relationship between human behavior and the designed environment

17 Questions
17% of test


Knowledge of and skill in integration of building systems and construction

10 Questions
10% of test


Knowledge of and skill in sourcing and research as it relates to manufacturers' and vendors' information regarding furniture, fixtures and equipment

10 Questions
10% of test


Knowledge of and skill in development and use of construction drawings, schedules and specifications

10 Questions
10% of test


Knowledge of and skill in measuring, drafting and technical drawing conventions

12 Questions
12% of test


Knowledge of and skill in visual, written and verbal design communication methods and techniques

21 Questions
21% of test


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