NCIDQ IDFX: Interior Design Fundamentals Exam Vocabulary Game
Exam terms with clues and explanations by OpenExamPrep.
About the NCIDQ IDFX: Interior Design Fundamentals Exam Vocabulary Game
A free word game for the NCIDQ IDFX: Interior Design Fundamentals Exam exam. Each round shows a clue for one of 20 exam terms across 6 topics. Recall the term, spell it out, then read a short explanation. Rounds pick a random term, so you can keep playing as long as you like.
How to Play
- 1Read the clue and type a term with the right number of letters (3 to 6). Abbreviations count: type the letters only.
- 2Press Check Answer or Enter. Each letter changes color to show how close you are.
- 3You have 6 tries. Stuck? Need a hint? asks the AI tutor for a nudge without giving the term away, and Skip moves to a new term.
- 4After the round, read the explanation, ask the AI to explain it, share your result, or press Next.
- ARight letter, right spot
- AIn the term, wrong spot
- ANot in the term
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Topics in the NCIDQ IDFX: Interior Design Fundamentals Exam Vocabulary Game
Existing conditions
Pre-design
Programming phase
Space planning
FF&E and finishes
Schematics
Sources for these terms (17)
- Volatile Organic Compounds' Impact on Indoor Air Quality · Source checked 2026-11-03
- Asbestos - Overview · Source checked 2026-11-03
- What is Radon? · Source checked 2026-11-03
- Health Risk of Radon · Source checked 2026-11-03
- LEED rating system · Source checked 2026-11-03
- Frequent Questions about Sustainable Marketplace and Green Products · Source checked 2026-11-03
- PCRs & EPDs - Environmental Product Declarations · Source checked 2026-11-03
- BOMA Floor Measurement Standards · Source checked 2026-11-03
- 2010 ADA Standards for Accessible Design · Source checked 2026-11-03
- Spinal Cord Injury/Disorders Center Design Guide · Source checked 2026-11-03
- E84 Standard Test Method for Surface Burning Characteristics of Building Materials · Source checked 2026-11-03
- CIE e-ILV 17-23-068 - correlated colour temperature · Source checked 2026-11-03
- CIE e-ILV 17-22-109 - colour rendering index · Source checked 2026-11-03
- GBAC public meeting: exploring artificial intelligence and federal buildings 09/26/2024 · Source checked 2026-11-03
- CIE e-ILV 17-22-067 - hue · Source checked 2026-11-03
- CIE e-ILV 17-22-074 - chroma · Source checked 2026-11-03
- National Business Space Assignment Policy, August 2025 · Source checked 2026-11-03
About the NCIDQ IDFX Exam
The IDFX (Interior Design Fundamentals Exam) is one of three sections required for the NCIDQ certification, administered by CIDQ at Prometric. It is a 3-hour computer-based exam of approximately 115 multiple-choice and Alternative Item Type questions covering the early phases of interior design practice. The 2026 blueprint organizes IDFX into six content areas: Existing Conditions (14%), Pre-Design (15%), Programming (16%), Space Planning (19%), Preliminary FF&E and Finishes (16%), and Schematics (20%). IDFX tests foundational knowledge typically learned during an interior design education and can be taken independently in any order among the three sections.
Exam sponsor: CIDQ (Council for Interior Design Qualification). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Questions
115 questions
Time Limit
3 hours
Passing Score
500 (scaled, 200-800)
Reported exam pass rate: 53% (Spring 2026). varies by administration and candidate preparation This describes exam candidates, not OpenExamPrep users or results from using our resources. Exam sponsor website
Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Frequently Asked Questions
Is the IDFX vocabulary game free?
Yes. The game is free to play with no sign-up. Signing in adds AI explanations for any term.
How does the IDFX vocabulary game work?
Each round shows a clue for one of 20 IDFX terms. Guess the term in six tries: green means the right letter in the right spot, yellow means the letter is in the term but in another spot, and gray means it is not in the term. After the round, read the explanation and play the next term.
Where do the IDFX terms come from?
OpenExamPrep researched each term from the CIDQ (Council for Interior Design Qualification) content outline and primary sources, listed under Sources on this page. The game is independent study material, not an official exam resource.
What is on the NCIDQ IDFX exam?
IDFX is the Interior Design Fundamentals Exam, the foundations section of the NCIDQ. Under the 2026 blueprint it covers six content areas: Existing Conditions (14%), Pre-Design (15%), Programming (16%), Space Planning (19%), Preliminary FF&E and Finishes (16%), and Schematics (20%). It tests foundational knowledge from interior design education, including site assessment, anthropometrics, accessibility and egress, materials and color, and schematic design communication. The exam is delivered as multiple-choice and Alternative Item Type questions.
How many questions are on the IDFX exam and how long is it?
The IDFX exam contains approximately 115 questions, of which about 15 are unscored pretest items used to evaluate future questions. Candidates have 3 hours to complete the section at a Prometric test center or by remote proctoring through Prometric ProProctor. The questions are multiple-choice and Alternative Item Types, the same item styles used across the other NCIDQ sections. Effective time management is important because the heaviest-weighted areas, space planning and schematics, reward careful reading.