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Alabama Home Builder Skill Exam — Practice Test

What This Practice Exam Covers

The Alabama Home Builder Skill Exam is 80 questions, 240 minutes, and requires a 66% passing score — 53 correct answers minimum. It covers 10 topic areas that span plan reading, field layout, structural framing, code compliance, and trade coordination.

This practice site gives you two ways to prepare:

Free practice exam — 10 questions per attempt, pulled from a limited pool. You can retake it as many times as you want. It's a good way to get a feel for how questions are worded and what level of detail they demand. Start here.

Full practice exam — 80 questions, 240-minute time limit, drawn from a pool of 402+ questions. Every attempt pulls a different mix, so you're not memorizing a fixed set. This mirrors the real exam structure and is the tool to use when you're doing serious preparation. It costs money; the free exam doesn't.

What You'll Be Tested On

Plan Reading — 10 items

This is not a light topic despite its name. Questions test whether you can read construction drawings the way a builder actually reads them — not just recognize symbols. You need to distinguish plan views, elevations, sections, and detail drawings, and know what each one shows and doesn't show. You'll interpret lines, symbols, and abbreviations. You'll work with architectural scales and extract dimensions correctly. Expect questions on schedules and specifications embedded in a plan set. Site plans and plot plans come up — building location, setbacks, and property lines. You may also calculate material quantities directly from drawing information. Sloppy reading of a scale or a missed abbreviation will cost you points.

Sitework and Foundations — 10 items

Heavy on specifics. Footing design and sizing is tested with direct reference to IRC R403 and soil bearing values — know what drives footing width. Foundation wall types include poured concrete, CMU, and ICF — know how they differ in construction and reinforcement. Site layout using batter boards, levels, and transits is tested procedurally. Excavation questions cover mass excavation, trench work, slope stability, and OSHA shoring requirements drawn from 29 CFR 1926 Subpart P. Soil classification, bearing capacity, compaction standards, and the Proctor test appear here. Drainage, dampproofing, and waterproofing of foundation walls and footings round out the topic.

Concrete and Reinforcement — 7 items

Expect mix design questions: water-cement ratio, slump values, and aggregate sizing. Portland cement types and admixtures — including retarding admixtures — are tested. Reinforcing steel bar sizes, placement, and cover requirements appear with direct reference to specific tables in the source material. Formwork questions cover materials, component selection, and how forms are built for footings, walls, columns, and slabs. Concrete placement, consolidation, finishing, and curing — including behavior in temperature extremes and plastic shrinkage cracking — are also tested.

Masonry — 6 items

Know brick types, grades, and ASTM classifications. Mortar types and their composition matter — the exam distinguishes between them. Wall systems include solid, cavity, veneer, composite, and reinforced construction. Brick bonds and pattern bonds are tested by name and visual identification. CMU types, sizes, and properties are separate from brick — treat them that way. Anchors, wall ties, and joint reinforcement are tested on their own. This topic rewards candidates who've spent time with Modern Masonry — Brick, Block, Stone.

Carpentry — 20 items

This is the biggest topic on the exam and deserves the most study time. It covers wood properties, grading, and species selection. Floor framing — joist spans, subfloor installation, and built-up girder construction — is tested with span tables. Wall framing layout includes stud sizing, plate requirements, and rough openings. Wall bracing methods and sheathing installation are tested with reference to IRC Section R602.10 provisions. Roof framing covers rafter layout, span tables, and full hip, valley, and jack rafter calculations. Interior trim work — including components like the stool and apron at a window — also falls here. With 20 items, a weak performance in Carpentry alone can fail the exam.

Roofing — 7 items

Slope classification and minimum slope requirements by material type are fundamental — know these numbers cold. Underlayment types and IRC requirements vary by covering, so don't blur them together. Asphalt shingle installation, fastening patterns, and re-roofing fastener requirements are tested. Flashing types — step, base, cap, valley, drip edge, chimney cricket — are tested on installation detail, not just identification. Wood shingles and shakes: grades, exposure, nailing, starter course, and low-slope application. Tile roofing: batten installation, top lap, fastening, and underlayment systems.

Interior Finish — 4 items

Drywall types, sizes, fire-code and moisture-resistant products, and installation methods are tested. Finishing levels, joint compound types, and setting-type compounds appear. Plaster systems — scratch, brown, and finish coats — are separate from drywall. Tile installation methods and setting materials, suspended ceiling systems, and wood finish flooring (strip, plank, parquet, installation over concrete, grades, and finish types) round out this topic.

Exterior Finish — 5 items

Water-resistive barriers and housewrap installation are tested procedurally. Flashing locations and exterior wall requirements are specific. Siding types — wood, vinyl, fiber cement, aluminum, stucco — each have their own fastening and installation rules. Window rough openings and installation, door types and frames, and deck and porch structural elements with correct fasteners all appear here.

Associated Trades — 6 items

Plumbing supply and DWV systems, pipe materials, and IRC plumbing code sections are tested. Fuel gas piping installation, sizing, and materials reference specific IRC Chapter 24 sections. Electrical service entrance, conductors, and panel requirements reference IRC Chapter 36. HVAC equipment installation, clearances, combustion air, and venting for fuel-burning appliances are tested. Thermal insulation R-values and vapor retarder installation close out this topic.

OSHA — 5 items

The 6-foot fall protection rule is a given. Scaffold load capacities and safety requirements, PPE selection and employer responsibilities, excavation and trenching cave-in protection (with specific reference to 29 CFR 1926 Subpart P provisions), ladder and stairway safety requirements, and hazard communication and SDS requirements are all tested. Know the regulatory text, not just the concept.

Worked Sample Questions

Question 1 — Carpentry

You are a remodeling contractor installing new molding and trim. Which term describes the horizontal member that laps the window sill and extends beyond the casing?

A. Casing
B. Head jamb
C. Apron
D. Stool

Correct answer: D — Stool.

The stool is the horizontal piece that laps over the window sill and extends past the casing on both sides. The apron is what goes directly below the stool — a common mix-up on this exam. Casing is the vertical and head trim framing the opening. Head jamb is the top of the window frame itself. The distinction between stool and apron is frequently tested. (Carpentry and Building Construction, Page 777)

Question 2 — Plan Reading

On a hip roof with a 10 in 12 slope, the run of the hip rafter is 12 feet. Using the hip/valley-slope factor of 1.642 (column 3), what is the actual hip rafter length?

A. 15.62 linear feet
B. 21.38 linear feet
C. 16.97 linear feet
D. 19.70 linear feet

Correct answer: D — 19.70 linear feet.

Multiply the run by the slope factor: 12 × 1.642 = 19.704, which rounds to 19.70 linear feet. The calculation is straightforward once you have the right factor from the right column. The exam provides the factor — your job is applying it correctly and not confusing column 3 (hip/valley) with the common rafter multiplier. (Roofing Construction & Estimating, Page 1-11, Chapter 1)

Question 3 — Sitework and Foundations

When performing the dry strength manual test on a soil sample, the dry soil falls into clumps that break up into smaller clumps, but those smaller clumps can only be broken up with difficulty. What does this result indicate about the soil?

A. The soil is fissured and must be classified as Type C
B. The soil is saturated and must be retested after drying
C. The soil may be clay in combination with gravel, sand, or silt
D. The soil is granular, consisting of gravel, sand, or silt

Correct answer: C — clay in combination with gravel, sand, or silt.

Per 29 CFR 1926, Subpart P, Appendix A(d)(2)(ii), when dry soil breaks into clumps and those smaller clumps resist further breaking, the soil may be clay in any combination with gravel, sand, or silt. Granular soil, by contrast, crumbles into individual grains or fine powder — that result points to Option D, not this one. The distinction matters for soil classification and required cave-in protection.

How to Read Your Score

Passing is 66% — 53 out of 80 questions correct.

Your first practice attempt is a diagnostic. It tells you where you stand right now, not where you'll be on exam day. Don't treat a score below 66% on the first try as a sign you're not ready — treat it as a map. Look at which topics you missed and how many items each carries. Dropping six points in Carpentry (20 items) is recoverable. Dropping six points across every topic is a different problem.

A score of 68–72% on practice usually means you're close but not safe. The real exam doesn't repeat questions you've already seen, and test-day stress costs something. Aim for 78%+ on practice before you sit.

Use the topic breakdown to prioritize. If you're losing points in Roofing (7 items) or OSHA (5 items), those are fixable with focused review. If Carpentry (20 items) is weak, that's the first priority — it's a quarter of the exam.

Where Candidates Lose Points

Carpentry trips people on calculation steps. Hip, valley, and jack rafter problems require the right slope factor from the right table column. Using the common rafter factor on a hip rafter problem is a fast way to pick a wrong answer that looks plausible.

Plan Reading loses people on scale and dimension. Misreading a 1/4" = 1'-0" scale by a factor of two produces an answer that appears in the choices — the exam is built that way.

Sitework and Foundations loses points when candidates confuse soil classification terminology. Type A, B, and C have specific definitions in 29 CFR 1926 Subpart P. Knowing that fissured soil drops to Type C, regardless of other properties, is the kind of detail the exam tests.

OSHA and Associated Trades lose points through code section confusion. IRC Chapter 24 gas piping and Chapter 26 plumbing sections are separate — mixing them up when a question names a specific requirement costs points.

Time management is a real issue. 240 minutes for 80 questions is 3 minutes per question. Multi-step calculations in Carpentry and Roofing can burn that fast. Know when to move on and come back.

Exam Quick Facts