Louisiana Building Construction

Louisiana Building Construction Exam: Complete 2026 Study Guide

Passing the Louisiana building construction exam is the gateway to working as a licensed commercial contractor in the state. The LSLBC Building Construction test is open-book — but don't let that fool you. Eighty questions in 180 minutes means you need speed and precision, not just a stack of highlighted books. This guide covers everything: exam format, topic weights, sample questions, approved references, and proven study strategies. Start with our free practice exam to see where you stand right now.

Exam Overview

The Louisiana commercial contractor exam is administered by PSI Exams. Here are the key numbers:

• Questions: 80 scored questions
• Time limit: 180 minutes (3 hours)
• Passing score: 70% — you need 56 correct answers
• Format: Open book; approved references only
• Registration: exam registration page

The exam is open book, which is a significant advantage — but only if your books are well-organized and tabbed before you walk in. You are allowed to highlight, underline, and annotate references ahead of time. Writing in them during the exam is not permitted; doing so will result in confiscation and a report to the department. Temporary tabs like Post-It notes must also be removed before the exam begins. Only permanent tabs are allowed, and no loose or attached extra papers may accompany your references.

For full rules, download the official exam bulletin or visit the state licensing website.

Topics Covered on the LSLBC Building Construction Test

The exam spans ten topic areas. Item counts reflect the actual weight each topic carries on the real exam — prioritize accordingly.

Focus your study time on the heavy hitters. General Code, Plan Reading & Estimating (15 items) and Concrete (13 items) together account for more than a third of the exam. Metals (10 items) and Safety (8 items) are the next tier. Smaller topics like Doors & Windows and Finishes carry only 3 items each — still worth reviewing, but don't let them consume your prep time.

Sample Questions

Here are five representative questions from the Louisiana building construction exam. Think through your answer, then check yourself with our free practice exam — we won't be giving away the answers here.

Question 1 — Doors and Windows
You are managing the construction of a commercial building with large glass panels at the base of an interior stairway. At what maximum height above the adjacent walking surface of the stairway is glazing considered a hazardous location requiring safety glazing?
- A) 48 inches
- B) 72 inches
- C) 60 inches
- D) 36 inches

Question 2 — Metals
When erecting LH-Series joists with spans over 60 feet through 100 feet, how many rows of bolted diagonal erection bridging must be installed nearest what locations before hoisting cables may be released?
- A) Two rows nearest the third points
- B) Three rows nearest the quarter points
- C) One row nearest mid-span
- D) All rows along the full span

Question 3 — Masonry
For seismic anchorage of masonry chimneys, straps must be embedded a minimum of how far into the chimney?
- A) 12 inches
- B) 8 inches
- C) 18 inches
- D) 6 inches

Question 4 — Thermal and Moisture Protection
When installing asphalt shingles on a roof with a slope between 2:12 and 4:12, what additional underlayment requirement applies?
- A) Self-adhering membrane only at eaves
- B) Double underlayment application
- C) Single-layer synthetic underlayment
- D) Triple underlayment application

Question 5 — General Code, Plan Reading & Estimating
You are estimating the occupant load for a commercial office building to determine the required means of egress capacity. For a general business area without fixed seating, the occupant load factor is one occupant per how many square feet of gross floor area?
- A) 200 gross
- B) 150 gross
- C) 300 gross
- D) 100 gross

Not sure on some of these? Take our free practice exam to test your knowledge across all ten topic areas.

What Types of Questions to Expect

Our full practice bank contains 763 questions across all ten exam topics. Here's a breakdown of what each topic tests and how many practice questions we offer:

• Sitework (66 practice questions): Site layout from reference lines, batter boards, differential leveling, soil classification, trench shoring, and compaction testing including Proctor density requirements.
• Concrete (110 practice questions): Mix design and water-cement ratios, Portland cement types (I–V), aggregate grading, admixture selection, and proper placing and finishing procedures.
• Masonry (56 practice questions): Material identification, mortar types and proportions, brick and block laying, wall system types (cavity, veneer, reinforced), and tool selection.
• Metals (50 practice questions): Steel joist series designations (K-, LH-, DLH-, CJ-, Joist Girders), erection bridging requirements, hoisting cable release conditions, bearing seat attachments, and cold-formed steel framing.
• Carpentry (105 practice questions): Wood grading and moisture content, engineered products (LVL, glulam, OSB, I-joists), framing systems (platform, balloon, post-and-beam), and floor assembly components.
• Thermal and Moisture Protection (101 practice questions): Roof covering installation by type, underlayment requirements by slope, insulation R-values, vapor retarders, and flashing details at valleys, chimneys, and penetrations.
• Doors and Windows (20 practice questions): Door construction types, rough opening dimensions, hardware requirements, and window types including double-hung, casement, and awning.
• Finishes (46 practice questions): Drywall types and fastening, taping and joint compound application, plaster lath and coats, flame spread classifications under IBC, and acoustical ceiling installation.
• Safety (51 practice questions): OSHA 29 CFR 1926 requirements, fall protection systems, PPE selection, scaffold erection and use, and excavation hazard controls.
• General Code, Plan Reading & Estimating (158 practice questions): IBC occupancy classifications, construction type fire-resistance ratings, building height and area limits, reading architectural plans, drawing types, symbols, and abbreviations.

Required Study Materials

The Louisiana Building Construction exam is open book, and the approved references are the same books you should be studying from. Buy them early so you can annotate them before test day.

• IBC 2018 — The International Building Code 2018 is the code reference for the exam. Newer editions are not substitutable for code questions; the exam is based on this specific edition.
• OSHA 29 CFR 1926 — Covers all OSHA construction safety standards tested in the Safety topic. Tab it heavily — OSHA questions are frequent and specific.
• Design and Control of Concrete Mixtures (16th Edition) — The definitive reference for the Concrete topic. Mix design, cement types, admixtures — it's all in here.
• Carpentry and Building Construction — Covers framing systems, engineered wood products, and floor assemblies. Essential for both Carpentry and general structural questions.
• Modern Masonry – Brick, Block, Stone (9th Edition) — Mortar types, wall systems, and masonry construction methods. Straightforward reference for the Masonry topic.
• Technical Digest No. 9 – Handling and Erection of Steel Joists and Joist Girders (4th Edition) — Required for Metals questions on joist erection, bridging, and bearing requirements. Very specific content; know this one well.
• Pipe and Excavation Contracting — Covers the Sitework topic: soil classification, trench shoring, and excavation methods.
• Roofing Construction and Estimating — Covers roof covering types, underlayment installation, and flashing requirements for the Thermal & Moisture Protection topic.

Study Tips

Master your books before you master the content. On an open-book exam, the winners aren't the smartest people in the room — they're the fastest at finding answers. Buy all required books, then highlight and tab them, and learn the index and table of contents until you can land on any topic in seconds. That speed separates a pass from a fail.

Use a two-pass strategy during the exam. Answer questions you know on the first pass; skip anything uncertain and flag it. Then return to flagged questions. This mirrors our practice exam format — you can bookmark questions for later review. Never sink too much time into one question while the clock runs.

Set your practice bar above the cut score. Give yourself at least three to six weeks. Use the official exam bulletin as your roadmap, and aim for three clean practice runs at 80% or higher before you test. A comfortable margin above 70% is your goal.

Practice under timed conditions. Exam-clock anxiety is real. Use timed practice tests to build steady pacing, so 180 minutes feels familiar — not frantic — on test day.

Frequently Asked Questions

How many questions are on the Louisiana Building Construction exam?
The exam contains 80 scored questions.

What is the passing score?
You need to answer at least 56 questions correctly — that's 70% — to pass.

How much time do I have?
180 minutes (3 hours).

Is the exam open book?
Yes. You may bring specific approved references into the testing room. You can highlight, underline, and annotate them before the exam, but you cannot write in them during the session.

What reference books are allowed?
Approved references include the International Building Code (2018), OSHA 29 CFR 1926, Technical Digest No. 9 (Steel Joists), Carpentry and Building Construction, Design and Control of Concrete Mixtures (15th or 16th Edition), Pipe and Excavation Contracting, Roofing Construction & Estimating, Modern Masonry (8th Edition), Placing Reinforcing Bars (9th Edition), and Training and Certification of Field Personnel for Unbonded Post-Tensioning (Level 1, 3rd Edition). You are responsible for bringing your own copies.

Can I use Post-It notes or loose papers as tabs?
No. Temporary tabs like Post-It notes must be removed before the exam. Only permanent tabs are permitted. No loose or attached extra papers are allowed with your references.

Can I use a newer edition of a reference book?
For most references, later editions are acceptable. However, for the IBC, only the 2018 edition applies — the exam is based on that specific version.

What topics does the exam cover?
Ten areas: Sitework (7 items), Concrete (13), Masonry (7), Metals (10), Carpentry (7), Thermal & Moisture Protection (7), Doors & Windows (3), Finishes (3), Safety (8), and General Code, Plan Reading & Estimating (15).

Ready to Start Preparing?

The Louisiana building construction exam is challenging, but it's very passable with the right books, good organization, and consistent timed practice. Start with our free practice exam — 10 questions, no account required — to get a feel for the format and question style. When you're ready to get serious, the full practice exam matches the real exam exactly: 80 questions, 180-minute timer, and a detailed score breakdown by topic so you know exactly where to focus next. Good luck.