Louisiana Residential Construction

Louisiana Residential Construction Exam: Complete Study Guide (2026)

You're ready to get your Louisiana residential contractor license — but first, you have to pass the exam. The Louisiana residential construction exam tests whether you understand the codes, techniques, and safety standards that protect homeowners and workers on every job site. Pass it, and you're one step closer to legally pulling permits and running residential projects across the state. This guide covers exactly what's on the test, what to study, and how to prepare efficiently so you walk in confident.

Start by getting a feel for the questions with our free practice exam — no account required.

Louisiana Residential Construction Exam Overview

The LSLBC residential construction exam is administered through PSI and is open book. Here are the core facts:

• Questions: 80 scored questions
• Time limit: 180 minutes (3 hours)
• Passing score: 70% — that means 56 correct answers out of 80
• Format: Multiple choice
• Open book: Yes — you may bring approved references into the testing room

You can review the full candidate requirements in the official exam bulletin and register through the exam registration page. For licensing requirements beyond the exam itself, visit the state licensing website.

The open-book format changes how you prepare. You don't need to memorize every table in the IRC — but you do need to find answers fast. More on that in the study tips section.

Topics Covered on the Louisiana Residential Builder License Test

The exam spans eight content areas. Here they are, ordered by how heavily they're weighted:

Estimating, Plan Reading and General Code Requirements (18 items) — The biggest chunk of the exam. Covers building permits and inspections, IRC scope, reading architectural drawings, understanding drawing symbols and abbreviations, and scale/measurement. Know your plan types cold: site, foundation, floor, framing, and elevation plans.

Carpentry (15 items) — The second-heaviest topic. Wood properties, lumber grading, engineered products (plywood, OSB, LVL, glulam, I-joists), structural framing systems, floor framing, wall framing with headers and rough openings, and IRC wall bracing requirements.

Site Work, Footings and Foundations (13 items) — Soil classification, bearing capacity, batter boards, excavation methods, footing types and minimum dimensions from IRC tables, frost depth, and reinforcement requirements.

Concrete and Concrete Reinforcement (9 items) — Mix design, water-cement ratios, cement types, admixtures and their effects, field testing (slump, air content, compressive strength cylinders), rebar grades and identification markings, and reinforcement cover and placement.

Roofing (7 items) — Slope measurement and area calculation, sheathing requirements, underlayment application, asphalt shingle installation and fastening, and flashing at valleys, chimneys, and penetrations.

OSHA Safety (7 items) — Residential fall protection (the 6-foot rule), scaffold standards, ladder types and duty ratings, PPE requirements, and fire prevention on construction sites.

Associated Trades and Drywall (6 items) — Drywall types (Type X, Type C, moisture-resistant), fastener spacing, cutting and installation sequence, joint compound and taping, and common defects like nail pops and blistered tape.

Masonry (5 items) — Brick classifications, CMU types and grades, mortar types (M, S, N, O, K), stone classification, and masonry tools.

Sample Questions from the Louisiana Residential Construction Exam

Here are five questions that reflect the style and difficulty you'll see on the real test. Read through them carefully — then think about what you'd choose before checking your knowledge.

Question 1 — Code Requirements (Medium)

What is the minimum fire separation distance required before unlimited unprotected openings are permitted in exterior walls of dwellings that are NOT equipped with fire sprinkler systems?
- A) 4 feet
- B) 3 feet
- C) 5 feet
- D) 2 feet

Question 2 — Permits and Inspections (Medium)

A permit application for proposed work is deemed abandoned if not pursued in good faith or a permit has not been issued within how many days after filing?
- A) 180 days
- B) 90 days
- C) 365 days
- D) 120 days

Question 3 — Associated Trades and Drywall (Medium)

Wood veneer paneling less than 1/4-inch nominal thickness used as an interior wall finish requires a backer of what minimum material and thickness?
- A) 3/8-inch gypsum board
- B) 1/2-inch gypsum board
- C) 1/4-inch hardboard
- D) 1/4-inch plywood

Question 4 — Carpentry (Medium)

Sawn lumber used for load-supporting purposes in wall framing must be identified by a grade mark from an accredited agency with design values certified by an accreditation body that complies with which standard?
- A) ANSI A208.1
- B) ASTM D5456
- C) DOC PS 20
- D) ASTM C208

Question 5 — Roofing (Medium)

When replacing an existing roof covering, what is the general requirement regarding existing layers of roof coverings?
- A) All existing layers must be removed down to the roof deck
- B) Up to two existing layers may remain in place
- C) Only the topmost layer must be removed
- D) Existing layers may remain if structurally sound

Not sure on a few of these? That's exactly the point. Try the free practice exam to see how you score before you commit to a study plan.

What Types of Questions to Expect by Topic

Here's a breakdown of what each topic actually looks like as exam questions — and how many practice questions we offer for each area:

Estimating, Plan Reading and General Code Requirements (175 practice questions) — Expect questions asking you to interpret code tables, identify what a drawing symbol represents, calculate scale dimensions, or determine whether a permit has expired. IRC scope and applicability questions show up here too.

Carpentry (158 practice questions) — Questions test lumber grade identification, engineered wood product specs, correct header sizing, joist span calculations, and wall bracing method selection per the IRC. Framing system differences (platform vs. balloon, for example) are also fair game.

Roofing (167 practice questions) — You'll calculate roof slope and area, identify correct underlayment application by slope, select the right fastening pattern for asphalt shingles, and determine where flashing is required.

Site Work, Footings and Foundations (102 practice questions) — Questions cover soil type identification, footing dimension minimums from IRC tables, volume calculations for excavation, and frost depth requirements.

Concrete and Concrete Reinforcement (76 practice questions) — Expect questions on water-cement ratios, admixture effects, how to read a slump test result, rebar designation numbering, and minimum cover requirements for different exposure conditions.

Associated Trades and Drywall (63 practice questions) — Questions ask about drywall type selection by application (bathroom vs. garage vs. fire-rated assembly), screw spacing at edges vs. field, and the correct sequence for taping and finishing.

Masonry (48 practice questions) — Questions cover mortar type selection, brick grade definitions, CMU weight classifications, and basic stonemasonry techniques.

OSHA Safety (46 practice questions) — Questions focus on residential fall protection triggers, scaffold platform width requirements, ladder angle and extension rules, and which PPE an employer must provide.

In total, we offer 835 practice questions across all eight topic areas.

Required Study Materials for the Louisiana Residential Construction Exam

Because the exam is open book, your references aren't optional — they're your toolkit on test day. These are the approved materials you need to own and prepare:

• International Residential Code for One-and Two-Family Dwellings (2018) — The backbone of the exam. Nearly every topic area references the IRC, from footing dimensions to wall bracing to drywall installation.

• OSHA 29 CFR 1926 — The federal construction safety standard. Know it for the OSHA section, and tab it well — the regulations are dense and specific.

• Carpentry and Building Construction — Covers framing systems, lumber grading, and engineered wood products in detail. The carpentry section is the second-largest on the exam.

• Modern Masonry - Brick, Block, Stone (9th) — Your reference for brick classifications, mortar types, and CMU properties.

• The Contractor's Guide to Quality Concrete Construction — Covers mix design, admixtures, field testing, and reinforcement placement. Essential for the concrete section.

• Pipe and Excavation Contracting (Revised) — Addresses excavation methods, soil classification, and site work — all tested in the Site Work and Foundations section.

• BCSI: Guide to Good Practice for Handling, Installing, Restraining, and Bracing of Metal Plate Connected Wood Trusses — Required reference for truss-related carpentry questions.

• Roofing Construction and Estimating (1995) — Covers slope, area calculation, shingle installation, and flashing — everything you need for the roofing section.

You are responsible for bringing your own copies to the exam. Order them early so you have time to prepare them.

Study Tips That Actually Work

Master your books, not just the content. On an open-book exam, the winners aren't the smartest people in the room — they're the fastest at finding answers. Highlight key tables, add permanent tabs, and learn each book's index and table of contents until you can land on any topic in seconds. That speed is what separates a pass from a fail.

Use a two-pass strategy on test day. Work through every question once: answer what you know, flag what you don't. Then circle back. You can bookmark questions for later review — just don't sink five minutes into one question while the clock keeps running.

Give yourself three to six weeks. Use the official exam bulletin as your roadmap and focus your time on finding-it-fast skills over memorization. Aim for three consecutive practice sessions scoring 80% or higher — setting your bar above the real cut score gives you a comfortable cushion on test day.

Practice under timed conditions. Exam-clock anxiety is real. Timed practice sessions train you to move at a steady pace so the format feels routine by test day. Our full practice exam mirrors the real exam: 80 questions, 180 minutes, same topic breakdown.

Know what you cannot bring. No loose papers. No Post-It notes or temporary tabs — only permanent tabs are allowed, and any temporary ones must be removed before you begin. You may highlight, underline, and annotate your books beforehand, but writing in them during the exam session is not permitted. Any extra materials will be confiscated.

Frequently Asked Questions

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

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

How much time do I have?
You have 180 minutes (3 hours) to complete the exam.

Is the Louisiana Residential Construction exam open book?
Yes. You may bring the approved reference books into the testing room. Being familiar with where to find information in each book is just as important as understanding the content.

What references am I allowed to bring?
The approved list includes the IRC 2018, 29 CFR Part 1926 (OSHA), The Contractor's Guide to Quality Concrete Construction (4th Edition, 2018), Modern Masonry (8th edition, 2015), Carpentry and Building Construction (2010 or 2016), the BCSI Guide (2018, updated March 2020), Pipe and Excavation Contracting (2011), and Roofing Construction & Estimating (1995). You must bring your own copies.

Can I annotate my books before the exam?
Yes — highlighting, underlining, and adding notes or index tabs are all allowed before the exam. You cannot write in your books during the exam session, and loose or attached extra papers will be confiscated.

Can I use Post-It notes to tab my references?
No. Only permanent tabs are allowed. Temporary tabs like Post-It notes must be removed before the exam begins.

What topics are covered on the exam?
Eight areas: Site Work, Footings and Foundations (13 items); Concrete and Concrete Reinforcement (9 items); Masonry (5 items); Carpentry (15 items); Associated Trades and Drywall (6 items); Roofing (7 items); Estimating, Plan Reading and General Code Requirements (18 items); and OSHA Safety (7 items).

Ready to Pass the Louisiana Residential Construction Exam?

The Louisiana residential construction exam is challenging, but it's very passable with the right preparation. You have 180 minutes, your approved references, and a clear map of exactly what's tested. Start with the free practice exam to benchmark where you stand today — no signup needed, 10 questions, immediate results. When you're ready to get serious, the full practice exam gives you 80 questions, timed conditions, and a detailed score breakdown by topic so you know exactly where to focus. Get your books, tab them well, and start building the knowledge and speed you need to pass.