South Carolina (Limited) Building Contractor

South Carolina (Limited) Building Contractor Exam: Complete 2026 Study Guide

Passing the South Carolina building contractor exam is the key step between where you are now and running your own licensed contracting business in the Palmetto State. The SC limited building contractor exam covers everything from sitework and concrete to carpentry and the building code — and with 80 questions and a 70% passing score, you need a smart, focused approach. This guide breaks down exactly what's on the test, what to study, and how to prepare efficiently so you walk in ready.

SC Limited Building Contractor Exam Overview

Here's what to expect on test day:

• Questions: 80 scored questions
• Time limit: 300 minutes (5 hours)
• Passing score: 70% — you need at least 56 correct answers
• Format: Multiple choice, open book
• Administered by: PSI Exams

Yes, you read that right — the exam is open book. You can bring your reference materials into the testing center. That's great news, but it doesn't mean you can walk in unprepared. Speed matters just as much as knowledge. If you spend four minutes hunting for a mortar-proportion table every time it comes up, the clock will beat you. The candidates who pass are the ones who know their books well enough to find answers fast.

For exam details, check the official exam bulletin and the state licensing website.

What Topics Are on the South Carolina Limited Building Contractor Exam?

The exam pulls questions from ten topic areas. Here's how the 80 questions break down — listed from most to fewest items so you know where to focus:

General Code, Plan Reading and Estimating carries the most weight at 13 questions. Expect topics like occupancy classifications, construction types (I through V), means of egress, fire walls and barriers, and building height and area limitations under the SC Building Code.

Carpentry comes in second at 12 questions, covering wood properties, lumber grading, engineered wood products, and structural framing systems — platform, balloon, post-and-beam, and SIP construction.

Concrete, Masonry, and Metals each contribute 10 questions. These are technical, code-driven sections. Steel joist designations, mortar types, reinforcement cover requirements — this is where your reference books earn their weight.

Thermal and Moisture Protection (9 questions) covers insulation R-values by climate zone, vapor retarder classes, underlayment requirements, and roof covering installation for everything from asphalt shingles to elastomeric membranes.

Safety (5 questions) draws from OSHA 29 CFR 1926 — fall protection, scaffold loads, ladder safety, and excavation cave-in protection.

Doors and Windows, and Finishes each have 2 questions — worth studying, but don't let them consume your prep time at the expense of the heavier sections.

Sample Questions From the SC Building Contractor Practice Exam

Here are five sample questions similar to what you'll encounter. See if you can work through them — but no peeking at the answers just yet. We'll point you to a free practice exam at the end where you can test yourself properly.

Question 1 — Carpentry (Easy)
You are framing an exterior wall on a commercial building. What is the minimum number of studs required at each corner of an exterior wall?
- A) One
- B) Four
- C) Two
- D) Three

Question 2 — Thermal and Moisture Protection (Medium)
For an open valley on an asphalt shingle roof lined with metal, the valley lining must be at least how wide?
- A) 24 inches
- B) 36 inches
- C) 12 inches
- D) 18 inches

Question 3 — Doors and Windows (Medium)
Safety glazing identification markings on each pane installed in a hazardous location must be of a type that, once applied, cannot be removed without being destroyed. Which of the following is NOT listed as an acceptable method for applying the safety glazing designation?
- A) Ceramic fired
- B) Adhesive applied vinyl
- C) Laser etched
- D) Acid etched

Question 4 — Concrete (Medium)
A polyethylene vapor retarder placed between the base course and a concrete floor slab on ground must have joints lapped not less than what distance?
- A) 8 inches
- B) 12 inches
- C) 4 inches
- D) 6 inches

Question 5 — Metals (Hard)
Each welded bridging connection to a joist must be able to resist a minimum horizontal force of:
- A) 500 pounds
- B) 1,000 pounds
- C) 900 pounds
- D) 700 pounds

Know the answers? Head to our free practice exam to put your knowledge to the test.

What Types of Questions to Expect — By Topic

Our full question bank includes 861 practice questions across all ten topics. Here's what each section tests and how many practice questions we have for each:

• General Code, Plan Reading and Estimating — 173 questions: Identifying use groups, calculating occupant loads and egress widths, selecting the right construction type, and understanding fire-resistance requirements. Expect scenario-based questions that require you to look up code tables.
• Carpentry — 143 questions: Lumber grades and moisture content, sizing floor joists and headers, choosing between engineered wood products, and framing sequence for wall and floor systems.
• Thermal and Moisture Protection — 130 questions: Matching insulation to climate zone R-values, identifying vapor retarder classes and placement, and applying installation rules for every major roof covering type.
• Sitework — 85 questions: SC 811 one-call notification requirements, excavator responsibilities under the SC Underground Facility Damage Prevention Act, tolerance zone and hand-digging rules, batter board layout, and soil bearing capacity from SC Building Code Chapter 18.
• Concrete — 90 questions: Concrete mix proportioning, Portland cement types, formwork design and OSHA Subpart Q compliance, and steel reinforcement sizing and cover requirements.
• Masonry — 84 questions: Brick and CMU types and grades, mortar proportions for different applications, and wall system configurations — cavity, veneer, composite, and reinforced.
• Metals — 50 questions: Open web steel joist designations (K-, LH-, DLH-, CJ-Series, and Joist Girders), OSHA erection safety requirements per 29 CFR 1926.757, bridging installation sequence, and seat attachment specifications.
• Safety — 42 questions: Employer and employee duties under 29 CFR 1926, fall arrest systems, scaffold load capacities, and excavation sloping and shoring requirements.
• Finishes — 45 questions: Drywall types and fastening schedules, joint compound and taping sequences, flame spread and smoke-developed classifications from SC Building Code Chapters 8 and 25.
• Doors and Windows — 19 questions: Door types and construction, hardware selection, determining door hand, and exterior door rough opening and installation requirements.

Required Study Materials for the SC Limited Building Contractor Exam

The exam is open book, so your references aren't optional — they're tools you'll actively use during the test. Get them early, know them well.

Required references you'll bring into the exam room:

• The Contractor's Guide to Quality Concrete Construction — covers mix design, formwork, and reinforcement in practical detail
• Modern Masonry - Brick, Block, Stone (9th Ed.) — the standard reference for masonry materials, mortar types, and wall systems
• Technical Digest No. 9 – Handling and Erection of Steel Joists and Joist Girders — essential for the Metals section, covering erection procedures and bridging requirements
• Carpentry and Building Construction — framing systems, lumber grading, and engineered wood products
• Roofing Construction and Estimating — installation requirements for every roof covering type on the exam
• Pipe and Excavation Contracting (Revised) — sitework, underground utilities, and excavation safety
• OSHA 29 CFR 1926 — the construction safety standard; required for Safety questions and referenced throughout
• South Carolina Building Code 2021 — the primary code reference for General Code, Finishes, and Concrete sections

Recommended study tools:

• Sharpie Tank Highlighters — bright fluorescent ink on a chisel tip; you'll be marking key tables and code sections constantly
• Redi-Tag Permanent White Tabs — 375 laser-printable tabs per pack; label every major topic so you can flip straight to the right page under time pressure

Study Tips for the SC Building Contractor Practice Exam

Speed first, memory second. On an open-book exam, the winners aren't the smartest people in the room — they're the fastest at finding answers. Buy the required books, highlight and tab them, and learn the index and table of contents until you can land on any topic in seconds. That speed is what separates a pass from a fail.

Work through every question once. Answer what you know, skip what you don't, then circle back. You can bookmark questions for review — just don't burn five minutes on one item while the clock runs. Bookmark it, move on, return later.

Give yourself three to six weeks. Use the official exam bulletin as your roadmap. Spend your prep time building find-it-fast skills, not just memorizing facts. In practice sessions, aim for 80% or higher before you schedule your test — giving yourself a buffer above the 70% cut score pays off on the real day.

Practice under timed conditions. Exam-clock anxiety is real. Use timed practice tests to build your pacing so the format feels routine by test day. Our full practice exam matches the real exam format — 80 questions, 300 minutes — so every timed run builds confidence.

Prioritize by exam weight. Carpentry, Concrete, Masonry, Metals, and General Code together account for more than half the exam. Get solid on those sections before spending extra time on Doors and Windows or Finishes.

Frequently Asked Questions

How many questions are on the South Carolina (Limited) Building Contractor exam?
The exam contains 80 scored questions. You need at least 56 correct answers — that's 70% — to pass.

How long do I have to complete the SC (Limited) Building Contractor exam?
You have 5 hours (300 minutes) to complete the exam. That's about 3.75 minutes per question on average, which is comfortable if you keep moving.

What is the fee for the South Carolina (Limited) Building Contractor exam?
The exam fee is $75. Registration fees are not refundable or transferable, and the fee is valid for one year.

What exams do I need to pass to get a (Limited) Building Contractor license in South Carolina?
You must pass two exams: the Business Management and Law for Contractors Examination and the (Limited) Building Contractor Examination. Both are required before you can be licensed.

How do I register for the exam?
You can register through PSI at the exam registration page online (available 24/7 — fastest option), by phone at (855) 340-3701, by fax at (702) 932-2666, or by mail using the form in the candidate bulletin.

How many times can I retake the exam if I fail?
You may take the exam up to twice within a 12-month period, with at least 6 months between attempts after that. If you pass, you cannot retake the same exam.

Is the exam open book?
Yes. You may bring your approved reference books into the testing center. Books may be highlighted, underlined, and tabbed with permanent tabs — but no loose papers, sticky notes, or handwritten additions are allowed.

What reference books are allowed?
Allowed references include the 2021 SC Building Code, OSHA 29 CFR Part 1926, Modern Masonry (9th Ed.), Technical Digest No. 9, Carpentry and Building Construction, Roofing Construction and Estimating, The Contractor's Guide to Quality Concrete Construction, Pipe and Excavation Contracting, and the SC 811 Excavator Manual. Always verify the current allowed list in the candidate bulletin.

What ID do I need at the testing center?
Bring one valid, non-expired, government-issued photo ID — a state driver's license, US passport, military ID, or similar. The name on your ID must match exactly what you used when registering.

Can I use a calculator?
Yes, but only a non-programmable calculator that is silent, battery-operated, does not print on paper tape, and has no alphabetic keyboard. Leave the scientific graphing calculators at home.

Ready to Start Preparing?

The SC limited building contractor exam is challenging, but it's absolutely passable with the right prep. Get your books, tab them properly, and practice under timed conditions. Start with our free practice exam — 10 questions, no account needed, no cost — to get a feel for the question style. When you're ready to prep seriously, upgrade to the full practice exam for 80-question timed sessions with topic-by-topic score breakdowns that pinpoint exactly where to focus. You've put in the work to get here. Now finish it.