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Louisiana Building Construction Licensing Exam — Practice Exam Prep

What This Practice Exam Covers

The Louisiana Building Construction licensing exam consists of 80 questions answered in 180 minutes, with a passing score of 70% (56 correct). The exam spans 10 topic areas, from sitework and concrete through safety and code plan reading.

This practice exam is available in two formats:

• Free practice exam: 10 questions per attempt, drawn from a limited pool. You can retake it as many times as you like — it's a no-cost way to get comfortable with the question style and timing before committing to serious prep.
• Full practice exam (paid): 80 questions, 180-minute timer, structured exactly like the real exam. Questions are drawn from a pool of 757+ items, so every attempt gives you a fresh set — you won't just memorize a single fixed test. Questions are built from the exact topic blueprint the official test provider uses.

Start with the free exam to calibrate where you are, then use the full exam for realistic, repeated practice.

What You'll Be Tested On

General Code Plan Reading and Estimating — 15 items
This is the heaviest topic on the exam. Expect IBC occupancy classifications, construction types, and fire-resistance ratings. You must read architectural drawings — floor plans, sections, elevations — and interpret symbols, abbreviations, and dimension scales correctly. Multi-step estimating problems (board feet, material quantities, change order markups) appear here regularly. Mastering this section alone provides nearly one-fifth of your total score.

Concrete — 13 items
The second-largest section. Questions target Portland cement types (Types I–V per Carpentry and Building Construction, Chapter 8, Table 8-1), water-cement ratio effects on strength and durability, admixture functions (air-entraining, water-reducing, accelerating, retarding), and slump testing procedures. You must know curing methods, duration, and how temperature extremes affect hydration. Expect questions on bar support tolerances, reinforcing mesh placement, and troubleshooting defects such as scaling or plastic shrinkage cracking.

Metals — 10 items
Focuses heavily on Steel Joist Institute (SJI) standards. Know the four open web steel joist series (K-, LH-, DLH-, and CJ-Series) and Joist Girder designations. Erection bridging requirements — when diagonal bridging must be in place before hoisting cables are released — are a high-frequency topic. Minimum bearing lengths on steel versus masonry/concrete supports, cold-formed steel member shapes, and flange vs. web punchout rules (per Carpentry and Building Construction, Section 29.3) all appear.

Safety — 8 items
Draws directly from 29 CFR 1926. You must know specific fall protection thresholds, guardrail height requirements (29 CFR 1926, §1926.502(b)(1) and §1926.502(b)(3)), scaffold load and erection rules (§1926.451(f)(6) and §1926.451(g)(1)), and excavation/trenching protective systems. Fire extinguisher classifications and OSHA employer/employee responsibility language are also tested.

Sitework — 7 items
Covers transit and level setup, batter board placement, differential leveling, and laying out right angles using the 3-4-5 method. Soil classification, Proctor compaction testing, and excavation volume calculations (bank yards vs. loose yards) appear here. IBC Appendix J grading and drainage slope requirements round out this section.

Masonry — 7 items
Tests mortar type proportions, brick and block laying sequences, and wall system identification (solid, cavity, composite, veneer, reinforced). IBC Chapter 21 provisions — including fireplace and chimney requirements (Sections 2113.2 through 2113.10) — appear alongside footing and foundation anchorage rules. Modern Masonry is a primary source; know its chapters on hollow masonry walls and wall applications.

Carpentry — 7 items
Covers lumber grading, moisture content, engineered wood products (LVL, glulam, I-joists, OSB, plywood), and structural framing systems — platform, balloon, post-and-beam. Floor and wall framing details including sill plates, girders, header sizing, bridging, and subfloor fastening are tested. IBC wood framing sections and Carpentry and Building Construction chapters on floor and wall systems are the core references.

Thermal and Moisture Protection — 7 items
Roof covering installation requirements by slope and material type (asphalt shingles, wood shake, tile, slate, metal, built-up, elastomeric) are tested against IBC Sections 1507 and 1508. Underlayment selection, step flashing, valley flashing, and drip edge requirements appear regularly. R-values by insulation type, vapor retarder placement, and crawl-space ventilation rules (Carpentry and Building Construction, Section 31.1) round this section out.

Doors and Windows — 3 items
Questions cover door construction types (solid-core, hollow-core, flush/slab, raised-panel), rough opening dimensions, and hardware (hinges, locksets, strike plates). Window types — double-hung, casement, awning, hopper, sliding — and energy efficiency metrics (U-value, SHGC, low-e glazing) are also tested.

Finishes — 3 items
Drywall type selection (including fire-code drywall per Carpentry and Building Construction, Chapter 32), fastener spacing, taping sequence, and setting-type vs. drying-type compounds appear here. Interior flame spread classifications per IBC Section 803 and suspended/acoustical ceiling installation basics complete this section.

Worked Sample Questions

Question 1 — General Code Plan Reading and Estimating

A change order totals $25,000. The contractor applies a 15% markup. What is the total billed to the owner?

• A. $26,000
• B. $28,000
• C. $28,750
• D. $30,000

Correct Answer: C — $28,750

Multiply the base amount by 1.15: $25,000 × 1.15 = $28,750. This is a straightforward markup calculation. The trap answers are $26,000 (adding only $1,000, as if the markup were 4%) and $28,000 (a flat $3,000 addition with no clear basis). On the real exam, these multi-step estimating problems reward candidates who write out the arithmetic rather than estimating mentally.

Question 2 — Concrete

What is the standard construction tolerance for the height of a bar support, measured from its base to the underside of the reinforcing bar?

• A. ±1/4 inch
• B. ±1/16 inch
• C. ±3/8 inch
• D. ±1/8 inch

Correct Answer: D — ±1/8 inch

A variation of plus or minus 1/8 inch from the specified nominal height is the accepted construction tolerance for bar supports. The other options all represent increments that appear elsewhere in concrete work (±1/4 inch appears in slab thickness tolerances, for example), which is why this question trips candidates who rely on vague familiarity rather than the specific rule. Source: Bar Supports, Chapter 10.

Question 3 — Metals

In cold-formed steel framing, why should holes never be punched in the flange of a stud, joist, or track?

• A. It reduces the structural strength of the member
• B. It makes it impossible to attach sheathing screws
• C. It voids the galvanized coating warranty
• D. It prevents proper alignment of punchouts for utility runs

Correct Answer: A — It reduces the structural strength of the member

Holes in the web of cold-formed steel members are permitted and standard for routing utilities through factory-punched openings. The flange, however, is the load-carrying element that resists bending and compression — punching it compromises structural integrity in a way that is not recoverable with field fixes. Answers B and C may sound plausible, but neither reflects the actual structural engineering rationale. Source: Carpentry and Building Construction, Section 29.3, Builder's Tip — Punchouts.

How to Read Your Score

The passing threshold is 70% — 56 correct out of 80 questions. On your first full practice attempt, treat your score as a diagnostic, not a verdict. Most candidates score lower on a timed, 80-question exam than on topic-specific studying because the full exam tests breadth under pressure.

A score below 60% on your first attempt is common and simply tells you where to focus. A score between 60–69% means you're close but not ready — the real exam will have harder individual items than any given practice set, and the margin is thin. A score above 75% consistently across multiple attempts is a more reliable indicator of readiness, since each 80-question draw from the 757+ pool gives you a different experience.

Use the topic-by-topic breakdown after each attempt. If you're dropping points on General Code Plan Reading and Estimating (15 items) or Concrete (13 items), fixing those two sections alone can move you several percentage points. Prioritize topics by item count — safety and metals each carry 8–10 items and reward focused study of specific OSHA sections and SJI erection rules.

Where Candidates Lose Points

Estimating math errors. The General Code Plan Reading and Estimating section includes multi-step calculations — board feet, change order markups, material quantities. Candidates lose points by skipping steps or misreading what the question asks for (net area vs. gross area, for example).

Confusing code sections across topics. IBC Chapter 21 masonry rules and IBC Chapter 15 roofing rules have numerical specifics — minimum chimney heights, underlayment slope thresholds — that candidates mix up under time pressure. Anchor the numbers to context, not just the digits.

Concrete tolerances and admixture details. Questions on bar support tolerances, water-cement ratios, and admixture purposes are precise. A candidate who knows "roughly ±1/4 inch" will pick the wrong option when the correct answer is ±1/8 inch.

SJI erection sequencing in Metals. Bridging and hoisting cable release conditions have a specific order. Candidates who understand the concept but not the sequence answer incorrectly on exactly the steps that matter.

Time management on long sections. With 180 minutes for 80 questions, you have about 2 minutes 15 seconds per question. The Concrete and Code sections both demand calculation — candidates who spend 5+ minutes on a single estimating problem run short at the end.

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