NCIDQ Cheat Sheet 2026

The 30 highest-yield NCIDQ facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. Which project delivery method requires the designer to complete full construction documents before a contractor is selected through competitive bidding? → Design-bid-build (DBB)
2. Which section of the NCIDQ exam tests a candidate's ability to apply building codes and life safety requirements in a design scenario? → PRAC
3. Which net-to-gross ratio is most commonly used for estimating total building area from programmed net square footage in office projects? → 1.25–1.35
4. What is the minimum required headroom clearance in a means of egress under IBC? → 7 feet 6 inches
5. A designer specifies carpet with a static electricity rating of 3.5 kV. Which environment is this specification most critical for? → Healthcare operating room or data center
6. In interior design practice, 'value engineering' typically involves: → Substituting materials or methods to reduce cost while maintaining performance
7. Which type of window treatment provides the most effective control of both glare and privacy without blocking daylight entirely? → Solar/screen shade
8. The contractors and the? usually attend bid openings. → Owner and interior designer
9. What flooring test gives the most accurate indication of slip resistance? → ASTM D2047
10. Which resilient flooring type consists of a photographic layer protected by a clear urethane wear layer? → Luxury Vinyl Tile/Plank (LVT/LVP)
11. Which standard provides the detailed accessibility specifications that are referenced by both ADA and most state building codes? → ICC A117.1 Accessible and Usable Buildings and Facilities
12. Which phase of FF&E procurement involves issuing competitive bids to vendors for specified furniture items? → Request for Quotation (RFQ)
13. Which document formally summarizes the client's spatial needs, including room counts, areas, and adjacency requirements? → Program document
14. What egress requirement determines the minimum number of exits required from a space in most US building codes? → Occupant load
15. Which kind of carrier offers the general public a service for moving furniture? → common carrier
16. According to IES recommendations, what is the typical illuminance range for general office tasks such as reading and computer work? → 30–50 footcandles
17. Which federal law is the primary accessibility standard for commercial facilities in the United States? → Americans with Disabilities Act (ADA)
18. What is the main function of a program document in the pre-design phase? → To define the client's spatial needs, goals, and priorities
19. Which professional organization accredits interior design education programs in North America? → CIDA (Council for Interior Design Accreditation)
20. Who could make a quick sketch perspective drawing the easiest? → Using a perspective grid
21. A designer specifies a material with a flame spread index of 150. Which ASTM standard classification does this fall under? → Class C
22. What is the primary difference between porcelain and ceramic tile from a specification standpoint? → Porcelain has lower water absorption (≤0.5%) and greater density
23. When specifying paint for a high-traffic corridor, which finish is most appropriate for durability and cleanability? → Semi-gloss
24. What is the required minimum clear floor space at a side-approach accessible lavatory per ADA standards? → 30 inches × 48 inches
25. What is the primary purpose of a 'door schedule' in construction documents? → Tabulating each door's size, type, material, hardware set, and fire rating in one document
26. In ergonomics, the standard seated desk height for most adults in the US is approximately: → 28 to 30 inches
27. The term 'fenestration' in building design refers to: → The system of windows, doors, and other openings in a building envelope
28. Under ADA standards, what is the maximum allowable knee clearance depth required under an accessible work surface? → 19 inches
29. What is the primary purpose of a 'reflected ceiling plan' in construction documents? → To document lighting, ceiling materials, and overhead mechanical elements as if looking up
30. Which phase of interior design services produces the documents used for contractor bidding? → Construction documents (CD) phase