The NCIDQ IDPX - Interior Design Professional Exam is administered by CIDQ (NCIDQ). It evaluates professional practice knowledge across five distinct domains, covering feasibility studies, scheduling, budgeting, contracts, procurement, permitting, the construction process, site observation, project close-out, and overall project management coordination to ensure candidates demonstrate complete competence in the field.
Interior design professionals who have met the education and work experience requirements and are approved to sit for Route 1 or Route 2, Part 2 exams.
Review the official Candidate Handbook and blueprints provided by CIDQ to prepare properly for your test. Ensure transcripts and work experience verifications are submitted through your MyNCIDQ account. Schedule your exam appointment through Prometric early during the payment and scheduling period to secure your preferred testing time.
This domain covers feasibility studies with a weight of 17.0 percent, assessing initial project viability, spatial requirements, and existing conditions evaluation to ensure proper planning before moving forward with design phases.
This domain covers scheduling and budgeting with a weight of 17.0 percent, focusing on project timelines, financial planning, milestone tracking, and detailed cost estimation to manage client expectations effectively throughout the design process.
This domain covers contracts, procurement, and permitting with a weight of 28.0 percent, addressing legal documents, regulatory approvals, vendor negotiations, and contract administration procedures required for professional interior design practice.
This domain covers the construction process with a weight of 21.0 percent, managing execution phases, contractor coordination, submittal reviews, and construction administration activities to ensure designs are built according to specifications.
This domain covers site observation and close-out with a weight of 17.0 percent, handling final inspections, punch lists, site visit procedures, and project close-out documentation to successfully deliver the completed interior space.
Arrive at the Prometric test center or ready your remote proctoring environment according to Prometric guidelines. Bring valid government-issued photo identification containing your signature for verification purposes.
The standard exam consists of 115 total questions administered professionally by Prometric, carefully covering all five required content domains to test your professional interior design knowledge completely.
The established passing score for the NCIDQ IDPX exam is 500, which candidates must achieve to successfully demonstrate their competency in interior design professional practice.
The total duration allotted for completing the exam is 180 minutes, providing candidates sufficient time to address all the multiple-choice questions within the test center.
The exam scheduling frequency and specific testing windows are managed directly by CIDQ, so always check with them for the latest registration dates and application deadlines.
Verified 2026-09-13
This detailed information page was carefully built using official CIDQ candidate handbooks, exam guides, and verified blueprints to ensure accuracy for all candidates.