South Carolina (Limited) Building Contractor

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

The South Carolina building contractor exam is a code-and-reference test, not a memory test. You sit down with your books, you answer 80 questions, and you have 5 hours to do it. Passing takes 56 correct answers out of 80 scored questions. That leaves you about 3 minutes 45 seconds per question — enough time to look something up, not enough to go fishing through a book you've never opened.

This guide walks through what the SC limited building contractor exam covers, what our practice questions look like, which references you need on the table, and how to study so the clock isn't your problem on exam day.

SC Limited Building Contractor Exam Overview

Here are the official numbers and rules for this exam:

On exam day

• You must bring one valid, unexpired, signature-bearing photo ID (such as a state driver's license, state ID card, US passport, US military ID, US alien registration card, or Canadian government ID) matching the name you registered under.
• You should arrive at least 30 minutes before your appointment.
• The examinations are open book: candidates may bring the listed reference books, which must not be written in or contain additional loose or attached papers, and proctors inspect all books before and after the examination.
• Highlighting and underlining are allowed and only permanent tabs may be used, but books must otherwise be unmarked (not written in).
• You may bring a silent, battery-operated, non-programmable calculator without paper tape printing or an alphabetic keyboard.
• Only approved items may be taken into the examination room, and personal items such as electronic devices, writing devices, reading material, bags, food and drinks must be left in secure storage.

References you may bring

• International Building Code with SC modifications, or the South Carolina Building Code (2021 International Building Code; or the 2018 or 2021 South Carolina Building Code)
• Code of Federal Regulations - 29 CFR Part 1926 (OSHA) (with latest available amendments)
• Code of Federal Regulations - 29 CFR Part 1926 Selections by PSI (with latest available amendments)
• Modern Masonry - Brick, Block, Stone (9th edition (2020))
• Technical Digest No. 9 – Handling and Erection of Steel Joists and Joist Girders (2008 or 2025)
• Carpentry and Building Construction (2010 or 2016 (Student Edition))
• Roofing Construction and Estimating (1995)
• Contractor's Guide to Quality Concrete Construction (2nd Edition, 1998)
• Pipe and Excavation Contracting (2011)
• South Carolina 811 Excavator Manual (latest edition)

Scheduling, changes and retakes

• You may register and schedule online at https://test-takers.psiexams.com/sccon, available 24 hours a day, or by telephone with a PSI registrar at (855) 340-3701.
• Minimum qualifications must be met before registering, and the Registration Confirmation Notice issued after PSI approval is valid for 1 year or until an examination classification has been failed twice within the referenced time frame.
• You may cancel and reschedule without forfeiting your fee if your cancellation notice is received 2 days before the scheduled examination date, and voice mail or email is not an acceptable cancellation.
• If you fail to cancel in time, do not appear, arrive after the examination start time, or lack proper ID, your registration is invalid and you forfeit your examination fee.
• Your score is given immediately after the examination on screen and on a printed official report, with a diagnostic report of strengths and weaknesses if you do not pass.
• Except for Burglar and Fire Alarm, an examination may be taken only 2 times in a 12-month period and thereafter only once in six months, and a candidate who passes an exam may not take it again.
• After passing the required examinations, you submit the commercial license application with an experience affidavit documenting the required experience.

Source: Commercial Contractor Candidate Information Bulletin, Updated 8/27/2026. Check the bulletin before test day: fees and rules can change.

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

The official outline splits the exam into ten topics. Study them in proportion to their weight — the top four are more than half the test.

General Code, Plan Reading and Estimating — 13 items (16%). The biggest single block. Expect structural load questions (dead, live, rain and ponding), minimum uniform live loads for dwellings, what construction documents must show, and attic storage classifications. Then the math: labor burden, board feet from an estimating table, and gallons of paint. Plan reading covers plan views, elevations, symbols, scales and schedules — for example, knowing that a room-finish schedule tells you floor, wall and ceiling materials room by room.

Carpentry — 12 items (15%). The outline runs from wood properties and engineered wood through floor, wall, roof and stair framing; our practice questions lean on conventional light-frame code: joist bearing length, lapping joists over a girder, how deep you can bore a joist, how far you can notch a stud in a bearing wall, and how many studs go in an exterior corner. Wood truss questions cover what must appear on truss design drawings, what paperwork ships with the trusses, and what happens before anyone hangs equipment off a web member.

Concrete — 10 items (12%). Minimum slab-on-ground thickness, plain concrete footing thickness for light-frame Group R-3, bags of cement per cubic yard, rebar cover in footings, consolidation, keyways, cold joints, and how a slab gets thickened under an interior bearing wall.

Masonry — 10 items (12%). The outline covers brick, block, mortar, wall systems, laying techniques, anchors and ties, and SC Building Code Chapter 21; our practice questions lean on fireplace and chimney work: firebox depth, chimney height above the roof, vertical reinforcing in a chimney, hearth extension dimensions, and flue area relative to the fireplace opening. Add lap splice length in allowable stress design and adobe unit strength and allowable stress.

Metals — 10 items (12%). Open web steel joists carry most of the outline: joist types and designations, erection procedures and OSHA requirements, bridging types and erection bridging, end bearing and seat attachment, and handling, receiving and jobsite storage. Cold-formed steel framing is also covered: box header assembly, why you never punch the flange of a stud, joist, or track, rough-opening allowances for door and window framing, subfloor thickness over steel joists at 24 inches on center, the gap at the end of a steel joist, sheathing orientation, and the three types of residential steel-framing construction.

Thermal and Moisture Protection — 9 items (11%). Crawl-space ventilation math, air space behind a radiant-heat barrier, which rigid insulation takes compressive load below grade, shingle siding coursing, the nail gap on vinyl siding, and minimum vinyl siding thickness.

Sitework — 7 items (9%). Layout and instruments: using an existing street or property line as a reference line, what a theodolite does, leveling a transit head, turning a right angle, and how far past the foundation lines batter board stakes get driven. Utility locating, tolerance zones, soils and trench safety also live here.

Safety — 5 items (6%). OSHA 29 CFR 1926 responsibilities, fall protection, scaffolds, ladders, trenching, PPE. Anchoring sill plates to masonry foundations, lumber grade stamps and load definitions show up in this group too.

Doors and Windows — 2 items (2%). Window types and which one opens its full area, muntins versus mullions, minimum egress window opening area, and what a lower U-value means.

Finishes — 2 items (2%). Drywall types and fasteners, finger-jointed trim stock, and cabinet layout starting from the high point of the floor.

Sample Questions From the SC Building Contractor Practice Exam

Practice questions, no answers. Work them cold, then test yourself on more questions in the free practice exam.

1. Crew installs 1,200 sq ft/day. Job 9,600 sq ft, 7 days due to weather. 4 crew scheduled. How many extra?

• A. 1
• B. 3
• C. 2
• D. 0

Tests production-rate estimating — crew output against a fixed schedule.

2. As a commercial roofing contractor, you are evaluating a wood structural panel roof sheathing installation where the strength axis runs parallel to supports with a maximum span of 24 inches. According to code, the uniform load deflection limitation under live load only for this configuration is:

• A. 1/360 of span
• B. 1/120 of span
• C. 1/180 of span
• D. 1/240 of span

Tests whether you can find the right deflection limit in the code's wood structural panel provisions.

3. Which type of Portland cement is designed for use in massive concrete structures such as dams, where the heat generated by hydration must be kept low?

• A. Type V
• B. Type III
• C. Type IV
• D. Type I

Tests cement type selection — straight recall from your concrete reference.

4. Surface-bonding mortar used in masonry construction must comply with which ASTM standard?

• A. ASTM C946
• B. ASTM C1364
• C. ASTM C270
• D. ASTM C887

Tests material standards in masonry — the kind of question you look up, not guess.

What Types of Questions to Expect — By Topic

Our practice questions come in three kinds.

Straight lookups. A number, a standard, a classification. Chimney height above the roof. Minimum bearing on wood or metal. Minimum vinyl siding thickness. These are fast if you know which book holds the answer and slow if you don't.

Job-site scenarios. You're given a situation — a helper asks a question, a subcontractor wants to hang equipment, a shipment arrives — and you pick the code-correct response. The scenario is wrapping; the rule underneath is the same rule you'd look up anyway.

Calculations. Estimating and load questions carry real arithmetic. Here's a worked one from the General Code, Plan Reading and Estimating topic:

2,400 sq ft wall, 350 sq ft/gal, 2 coats. How many gallons?
A. 14
B. 20
C. 12
D. 16

Correct answer: A. 2,400 × 2 coats = 4,800 sq ft; 4,800 ÷ 350 = 13.7 → round up to 14 gallons.

Note the rounding. Partial gallons don't exist on a material order, so the answer rounds up to the next whole gallon.

By topic, here's the flavor of our practice questions: Carpentry and Concrete lean code-numeric — one-third the depth of the joist, three studs at a corner, 3 inches of cover over rebar in footings. Metals leans procedural — cut the track 2 inches longer than the header, leave a 1/8-inch gap at the joist end. Sitework leans instrument and layout procedure. Thermal and Moisture Protection mixes code tables with simple division. Safety pulls from OSHA construction standards and basic structural definitions.

Required Study Materials for the SC Limited Building Contractor Exam

This exam is open book. That only helps if you've used the books before exam day.

Required references:

• SC Building Code 2021 — loads, means of egress, construction types, masonry, wood framing, roof coverings.
• OSHA 29 CFR 1926 — construction safety standards for the Safety questions.
• Carpentry and Building Construction — framing, layout, foundations, insulation, drywall, trim, steel framing.
• Modern Masonry — brick, block, stone, mortar, foundation walls.
• The Contractor's Guide to Quality Concrete Construction — mixes, forms, reinforcement, placement, finishing.
• SJI Technical Digest 9: Steel Joist Erection — joist handling, bridging, erection.
• Roofing Construction and Estimating — roof systems, underlayment, roofing quantities.
• Pipe and Excavation Contracting — trenching, excavation volume, soils.
• SC 811 Excavator Manual — one-call requirements, excavator duties, tolerance zone.

Recommended study aids: Sharpie Highlighters and Redi-Tag Permanent White Tabs for organizing your references while you work through them.

Confirm the current reference list and every administrative detail in the official bulletin, and check your license requirements with the South Carolina licensing agency.

Study Tips for the SC Building Contractor Practice Exam

Weight your study time. General Code, Plan Reading and Estimating plus Carpentry together are almost a third of the South Carolina (Limited) Building Contractor exam. Concrete, Masonry and Metals are another big block. Doors and Windows and Finishes are worth two items each — learn them, but don't spend a week there.

Open book means fast book. The reference isn't a safety net if you're still learning the layout while the clock runs. Work through the table of contents of each book once. Know which book answers which kind of question before you open anything. When you miss a practice question, find the passage in the actual book instead of just reading the explanation — that's how the page number sticks.

Practice at speed. about 3 minutes 45 seconds per question is your budget. Time yourself on a full set of 80 questions and track how many questions eat more than their share, so you don't burn six minutes on one item.

Do the math by hand. Estimating questions are simple arithmetic under pressure. Write the steps down. Round the way the job would round.

Repeat the misses. Take a full SC building contractor practice exam, sort your wrong answers by topic, and rebuild those topics from the reference. Then take another full set. Two or three honest timed runs teach you more than a month of reading.

Ready to Start Preparing?

Start with 10 questions free and see where you stand. Then run full sets of 80 questions under time until the pace feels normal and your books open to the right chapter without thinking.

Start the SC limited building contractor practice exam