- What Is the NCGC-B Exam?
- Who Administers the NCGC-B and What It Costs
- Exam Format and Question Style
- The 15 NCGC-B Content Domains
- License Tiers: Limited, Intermediate, Unlimited
- Who Needs the Building Contractor License
- Eligibility and the Qualifier Requirement
- Renewal and Continuing Education
- Building a Study Plan Around the Domain Weights
- Frequently Asked Questions
- NCGC-B is the North Carolina Building Contractor exam: 90 scored questions, 200 minutes, 70% to pass.
- The exam is open-book, computer-based via PSI, and costs $79 to sit.
- Estimating, Plan Reading and General Building Code Requirements is the heaviest domain at 15.6% of the exam.
- Every candidate must designate a qualifier who personally passes the Board-approved exam.
What Is the NCGC-B Exam?
The NCGC-B is the North Carolina General Contractor License Exam for the Building Contractor classification, administered under the authority of the North Carolina Licensing Board for General Contractors. It is the credentialing exam that individuals must pass - either personally or through a designated qualifier - before a business can legally hold a general contractor license in the Building classification in North Carolina.
This exam is not a generic construction knowledge quiz. It is a state-specific, code-and-business-focused test built around how residential and commercial building projects are actually estimated, planned, and executed under North Carolina rules. If you're searching for a broader breakdown of the credential itself, the NCGC-B Certification overview and the What Is A NCGC-B? page cover related angles on the same license.
Who Administers the NCGC-B and What It Costs
Computer-based testing for the NCGC-B is administered by PSI on behalf of the North Carolina Licensing Board for General Contractors. The Building Contractor examination fee is $79. Candidates receive a PSI eligibility notice once their application is approved, and that notice is valid for 120 days, permitting one examination appointment. If a candidate does not pass on the first attempt, retesting is available during the 12-month application period, so a failed attempt does not require starting the licensing application over from scratch.
The current PSI candidate bulletin was updated November 19, 2025, so anyone scheduling a test date should confirm they're referencing the most recent version rather than an outdated PDF. For a full walkthrough of scheduling logic, appointment windows, and how the 120-day eligibility clock works in practice, see NCGC-B Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Key Takeaway
Treat your 120-day eligibility window as a hard deadline. Schedule your test date as soon as you receive your PSI notice rather than waiting, since rescheduling too close to expiration can force a new application cycle.
Exam Format and Question Style
The NCGC-B consists of 90 scored, open-book multiple-choice questions delivered in a 200-minute window. A passing score is 70%. The exam may also include 5 to 10 unscored experimental questions mixed in with the scored items - these are used by the Board to evaluate future exam content, and importantly, the time spent on them does not count against your 200-minute clock.
Because the exam is open-book, candidates are allowed to bring approved reference materials into the testing room, and those references may be permanently tabbed for faster navigation during the test. A silent, nonprinting, nonprogrammable calculator is also permitted, which matters heavily for the estimating and plan-reading portions of the exam where math-heavy problems are common.
- Format: Computer-based, open-book multiple-choice
- Length: 90 scored questions, 200 minutes
- Passing score: 70%
- Unscored items: 5 to 10 experimental questions, untimed against your total clock
- Allowed tools: Tabbed approved references, silent nonprogrammable calculator
The open-book format changes exam strategy significantly - it's less about pure memorization and more about knowing exactly where in your references a formula, code section, or table lives so you can find it inside the time limit. That efficiency-under-time-pressure factor is exactly why domain familiarity matters more than raw recall for this test. For a deeper look at how difficult candidates find this format in practice, read How Hard Is the NCGC-B Exam? Complete Difficulty Guide 2026, and for the exact scoring mechanics, see NCGC-B Passing Score 2026: Exactly What You Need to Pass.
The 15 NCGC-B Content Domains
The Building Contractor exam is organized into 15 weighted content domains. Together, they reflect the full scope of what a licensed building contractor is expected to know - from fieldwork trades to office-side business and legal obligations.
| Domain | Weight |
|---|---|
| Estimating, Plan Reading and General Building Code Requirements | 15.6% (14 of 90 questions) |
| Concrete | 14.4% |
| Metals | 13.3% |
| Carpentry | 7.8% |
| Business and Law | 7.8% |
| Site Work | 6.7% |
| Masonry | 6.7% |
| Roofing | 6.7% |
| Sports Fields | 5.6% |
| Safety | 4.4% |
| Associated Trades | 3.3% |
| One Call | 2.2% |
| Erosion and Sedimentation Control | 2.2% |
| Licensing | 2.2% |
| Liens | 1.1% |
Estimating, Plan Reading and General Building Code Requirements
This is the single largest domain at 14 of 90 questions. Candidates need to be comfortable reading construction drawings, calculating quantities and costs, and applying general code requirements to real project scenarios.
- Takeoffs and quantity estimating from plan sets
- Interpreting general building code provisions as they apply to project decisions
- Cost and material calculations under time pressure
Concrete and Metals
Combined, Concrete (14.4%) and Metals (13.3%) make up nearly a third of the exam. These domains test technical knowledge of materials, structural applications, and installation standards used in building construction.
- Concrete mix, placement, and curing considerations
- Structural and light-gauge metal applications
- Fastening, connections, and load-related principles
A full breakdown of every domain - including the smaller but still-scored areas like One Call, Erosion and Sedimentation Control, and Liens - is available in NCGC-B Exam Domains 2026: Complete Guide to All 15 Content Areas. Because three domains alone (Estimating/Plan Reading, Concrete, and Metals) account for roughly 43% of the scored questions, candidates who under-prepare these three areas put a disproportionate share of their passing score at risk.
License Tiers: Limited, Intermediate, Unlimited
Passing the NCGC-B exam is only part of qualifying for a license - the license itself is issued at one of three financial tiers, and the tier determines the size of project a licensee can legally take on.
- Limited: Requires at least $17,000 in working capital or $80,000 net worth; permits projects up to $750,000.
- Intermediate: Requires $75,000 in working capital; permits projects up to $1.5 million.
- Unlimited: Requires $150,000 in working capital; has no single-project limit.
Passing the exam does not change based on which tier you're pursuing - the questions and passing score are the same - but your financial documentation submitted to the Board determines which tier you're licensed at. Contractors sometimes start at Limited and later upgrade their financial standing to move into Intermediate or Unlimited tiers without retaking the exam, provided their license remains in good standing.
Who Needs the Building Contractor License
The Building Contractor license and its exam are relevant to anyone who intends to contract, supervise, or bid building construction work in North Carolina at or above the $40,000 project threshold. This includes:
- Owners and principals of general contracting firms taking on commercial or larger residential building projects
- Project managers or estimators being positioned as a company's designated qualifier
- Superintendents transitioning into ownership or licensed leadership roles
- Trade professionals expanding into general contracting after years in carpentry, masonry, concrete, or related fields
Because the license is tied to the individual qualifier rather than just the business entity, companies frequently need at least one licensed qualifier on staff before they can legally bid or accept building contracts above the threshold. This creates real hiring demand for professionals who hold or are working toward this credential - a dynamic covered in more detail in NCGC-B Jobs and in the broader value discussion in Is the NCGC-B Certification Worth It? Complete ROI Analysis 2026.
Eligibility and the Qualifier Requirement
Before sitting the exam, applicants must meet several baseline requirements set by the North Carolina Licensing Board for General Contractors:
- Be at least 18 years old
- Demonstrate good moral character and financial responsibility
- Pay the applicable application fee
- Consent to a background check if required by the Board
- Designate a qualifier who passes the Board-approved examination on the license classification being applied for
The qualifier requirement is central to how North Carolina licensing works: the person who passes the exam becomes the qualifying party whose passing score and continuing education keep the license active. A full eligibility checklist, including documentation specifics and how the qualifier role interacts with business ownership, is broken down in NCGC-B Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Renewal and Continuing Education
Building Contractor licenses renew annually. To keep a license active, the qualifier for a Building license must complete 8 hours of Board-approved continuing education every year. That total is split into a mandatory 2-hour course plus 6 elective hours, giving qualifiers some flexibility in which topics they focus their remaining continuing education time on, as long as courses are Board-approved.
This annual cycle means the NCGC-B exam itself is typically a one-time hurdle for the qualifier role, but staying licensed is an ongoing commitment tied to education compliance, not just the original passing score.
Building a Study Plan Around the Domain Weights
Because the NCGC-B domains are weighted so unevenly - from 15.6% down to 1.1% - the most efficient study plans allocate time proportionally rather than treating all 15 domains equally. A rough approach many candidates use:
Heaviest domains first
- Estimating, Plan Reading and General Building Code Requirements (15.6%)
- Concrete (14.4%)
Mid-weight technical domains
- Metals (13.3%)
- Carpentry (7.8%)
- Business and Law (7.8%)
Site and trade domains
- Site Work, Masonry, Roofing (6.7% each)
- Sports Fields (5.6%)
- Safety (4.4%)
Low-weight domains and review
- Associated Trades, One Call, Erosion and Sedimentation Control, Licensing, Liens
- Full practice under 200-minute timed conditions
Simple techniques like spaced repetition on code and calculation formulas, or breaking review sessions into focused blocks, work fine here - but they only pay off when applied against the actual NCGC-B weighting above rather than generic content. A structured week-by-week plan with practice questions mapped to each domain is laid out in the NCGC-B Study Guide 2026: How to Pass on Your First Attempt, and a condensed one-page reference of must-know facts is available in the NCGC-B Cheat Sheet 2026: One-Page Review of Must-Know Facts.
If you want to gauge readiness before your PSI appointment, running through timed practice questions on our NCGC-B practice test platform is one of the most direct ways to see how your pacing across 90 questions in 200 minutes actually feels, and where your weaker domains show up under exam conditions.
Key Takeaway
Don't split study time evenly across all 15 domains. Estimating/Plan Reading, Concrete, and Metals alone represent over 40% of the scored exam and deserve proportionally more of your prep time.
For candidates weighing whether the investment of fees, study time, and continuing education makes sense against project opportunities and income potential, the NCGC-B Certification Cost 2026: Complete Pricing Breakdown and NCGC-B Salary Guide 2026: Complete Earnings Analysis articles look at that math in more depth, and the main practice test hub is a useful starting point for benchmarking where you currently stand.
Frequently Asked Questions
Yes. Candidates may bring approved reference materials, which can be permanently tabbed, and a silent, nonprinting, nonprogrammable calculator is also allowed during the test.
There are 90 scored multiple-choice questions with a 200-minute time limit. The exam may also include 5 to 10 unscored experimental questions, and time spent on those does not count against your 200 minutes.
A passing score is 70% on the 90 scored questions. The unscored experimental questions do not factor into your result.
The Building Contractor examination fee is $79, paid through the PSI testing process administered on behalf of the North Carolina Licensing Board for General Contractors.
Your PSI eligibility notice is valid for 120 days for one appointment, but retesting is available during the overall 12-month application period, so you can schedule another attempt without restarting your entire application.
Not necessarily - the license requires a designated qualifier who passes the Board-approved exam. That qualifier can be the business owner or another qualifying individual on staff.