NASCLA Accredited Examination for Commercial General Building Contractors - NASCLA, delivered by PSI
The NASCLA Accredited Examination for Commercial General Building Contractors is the open-book technical exam that many states accept for a commercial general contractor license. It has 115 scored multiple-choice questions in 330 minutes across construction topics, with a minimum passing score of 81. SummitCert's portal helps you prepare with exam-style questions and explanations, flashcards on key codes and methods, a timed mock exam and progress tracking by content area.
One-time purchase · lifetime access · study on any device
Everything included — in full detail
This is exactly what you unlock. No vague promises — real numbers, straight from the portal.
Your full practice pool — 350 questions total, written to mirror the real exam blueprint, with full answer explanations for every question.
Including General Requirements, Site Construction, Concrete, and more.
A complete, realistic exam-day simulation with the same question count and time limit as the real thing.
Covering every key term, concept, and framework you're expected to know.
Hand-picked walkthroughs and explainers organized by topic.
Visual breakdowns of the frameworks and models the exam tests you on.
The exact formulas and calculations you need, ready to review before test day.
A searchable glossary so unfamiliar terminology never slows you down.
See your accuracy by domain, spot weak areas early, and follow a built-in study schedule.
Tailored to this exam: it knows your progress and weak areas, remembers your earlier chats, and picks up where you left off on your other devices.
Study anywhere — your progress syncs on the device you are using and picks up where you left off.
No subscriptions, no renewals — buy once and keep studying until you pass.
See the NASCLA Commercial General Building portal
Real screenshots — this is exactly what you'll be studying in. Click to zoom in.
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Topics you'll drill
8 core topics pulled straight from the real question bank.
- General Requirements
- Site Construction
- Concrete
- Masonry
- Metals
- Wood
- Thermal and Moisture Protection
- Doors, Windows, and Glazing
NASCLA Commercial General Building exam requirements & cost
Straight from the certifying body — separate from what we charge for the study portal.
The NASCLA Commercial General Building exam has 115 scored multiple-choice questions plus 10 unscored pretest items, and a 330-minute time limit (PSI candidate bulletin). The exam is open book: listed references and a diagram or blueprint packet are provided. A minimum score of 81 of 115 scored items, about 70 percent, is required to pass. This portal's practice mock has 115 questions. A minimum passing score of 81 of 115 scored items (about 70 percent) is required. States add their own business and law exam, which is scored separately. The exam fee varies by state and was not confirmed as a national figure (one Georgia guide listed $106). The fee is valid for one year from the date of payment. The content outline spreads questions across 12 areas; the largest are Procurement and Contracting Requirements (27.0%); General Requirements (21.7%); Site Construction (13.0%). The full list of areas and weights is on the portal exam page. NASCLA approves your application first, then you pay and schedule with PSI; state licensing boards set the experience and business and law requirements for the license.
NASCLA Commercial General Building exam blueprint
Real domain weighting from the certifying body's own published exam syllabus.
- General Requirements21.7%
- Site Construction13%
- Concrete5.2%
- Masonry3.5%
- Metals5.2%
- Wood4.3%
- Thermal and Moisture Protection4.3%
- Doors, Windows, and Glazing3.5%
- Finishes4.3%
- Mechanical and Plumbing Systems5.2%
- Electrical Systems2.6%
- Procurement and Contracting Requirements27%
Real pass rate, retake policy, scoring, and a study timeline for NASCLA Commercial General Building — free, no purchase required.
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