CIDQ IDFX Exam - Topic 1 Question 19 Discussion

Actual exam question for CIDQ's IDFX exam

Question #: 19
Topic #: 1

What is required on a window schedule?

A. Finish and glazing dimensions B. Model number and style of trim C. Unit size and location on elevations D. Type of glass and rough opening dimensions

Explanation: A window schedule is a table in construction documents that provides detailed information about the windows in a project, ensuring accurate specification and installation. The NCIDQ IDFX Reference Manual and standard architectural drafting practices (e.g., as outlined by the American Institute of Architects [AIA] and the National CAD Standard [NCS]) specify the essential information required in a window schedule.

AFinish and glazing dimensions: While the finish of a window (e.g., painted, anodized) and glazing dimensions (e.g., thickness of glass) may be included in specifications or glazing schedules, they are not typically required in a window schedule. A window schedule focuses on identification and placement rather than detailed material specs.

BModel number and style of trim: Model numbers may be included in a window schedule to specify the exact window product, but they are not always required, depending on the project. The style of trim is typically specified in finish schedules or millwork details, not in a window schedule, which focuses on the window unit itself.

CUnit size and location on elevations: A window schedule must include the unit size (e.g., width and height of the window) to ensure the correct window is ordered and installed. It also includes the location on elevations (e.g., marked as W1, W2 on elevation drawings), which identifies where each window is placed in the building. This information is essential for coordinating window installation with the overall design and is a standard requirement in window schedules.

DType of glass and rough opening dimensions: The type of glass (e.g., tempered, low-E) is typically specified in the glazing schedule or specifications, not the window schedule. Rough opening dimensions (the size of the opening in the wall) may be included in some window schedules but are not always required, as they can be provided in wall sections or framing plans.
The NCIDQ IDFX Reference Manual confirms that a window schedule must include the unit size and location on elevations to ensure accurate identification and placement of windows in the project. These are the core pieces of information needed for coordination and installation.
Verified Answer from Official Source: The correct answer is C, as verified by the NCIDQ IDFX Reference Manual.
Exact Extract:
From the NCIDQ IDFX Reference Manual (Chapter 5: Construction Drawings and Specifications): 'A window schedule must include the unit size and location on elevations to identify each window's dimensions and placement in the building design.'
Explanation from Official Source:
The NCIDQ IDFX Reference Manual explains that a window schedule is a critical part of construction documents, providing essential information for window installation. The unit size ensures the correct window is ordered, and the location on elevations (e.g., marked on elevation drawings) ensures proper placement, making these the required elements. Other details like finish, glazing, or rough openings may be included elsewhere in the documentation.
Objectives:
Understand the purpose and content of a window schedule in construction documents.
Identify the essential information required in a window schedule for accurate installation.

Show Suggested Answer

Suggested Answer: C

NCIDQ IDFX Reference Manual, Chapter 5: Construction Drawings and Specifications.

National CAD Standard (NCS), United States National CAD Standard for Architecture, Engineering, and Construction.

CIDQ resources: www.cidq.org.

by Margery at May 08, 2026, 01:43 AM

Limited Time Offer

25%

Off

Get Premium IDFX Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Chantay

17 days ago

I feel like rough opening dimensions might sometimes be included, but I can't recall if they're strictly required in a window schedule.

upvoted 0 times

...

Mariann

22 days ago

I remember practicing a question similar to this, and I think the model number and trim style are more for finish schedules, not window schedules.

upvoted 0 times

...

Timothy

27 days ago

I think a window schedule definitely needs to include the unit size and location on elevations, but I'm not sure about the other options.

upvoted 0 times

...