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HI-GBC Passing Score 2026: Exactly What You Need to Pass

TL;DR
  • You need 60 of 80 scored questions correct - that's the 75% passing score on the B trade exam.
  • Up to 10 unscored experimental items may appear, but PSI states time on them doesn't count against your 240 minutes.
  • The trade exam costs $85; add the $80 Business and Law exam for $165 total in exam fees.
  • Concrete and Associated Trades tie as the largest domains - master these two before anything else.

The Passing Score, Exactly

If you're preparing for the Hawaii General Building Contractor (B) Trade Exam, the number that matters most is simple: you need 75% correct, which on this exam translates to 60 correct answers out of 80 scored questions. That's the official passing threshold according to the PSI candidate bulletin governing this trade exam, and it's a fixed target - there's no curve, no rounding in your favor, and no partial credit for questions you leave blank.

This is a hard cutoff, not a suggestion. Missing 21 or more scored questions means a retake, regardless of how strong your background is in framing, sitework, or finish carpentry. Understanding this number precisely - and what it does and doesn't include - is the first step toward building a study plan that actually gets you there. For a broader breakdown of what's tested and how, see the HI-GBC Exam Domains 2026 guide.

The Core Math: 80 scored questions, 240 minutes, 75% passing score = 60 correct answers minimum. Every study decision should trace back to this ratio.

How the 80 Scored Questions Break Down

The B trade blueprint is built around eight content domains, each contributing a share of those 80 scored items:

  • Plan Reading and Estimating
  • Sitework and Foundations
  • Concrete
  • Carpentry
  • Associated Trades (interior and exterior finishes, windows & doors)
  • Roofing
  • Safety OSHA
  • Thermal and Moisture Protection

Two domains are explicitly called out as tied for the largest share of the outline: Concrete and Associated Trades. That matters directly for your 60-correct target - a candidate who is weak in these two areas is fighting an uphill battle no matter how solid the rest of their knowledge is. Note also that the outline scopes these narrowly: the Concrete domain is restricted to C-31a work, and Roofing is restricted to C-42a/C-42b work specifically, not general trade knowledge across those areas.

For a full domain-by-domain walkthrough with what each topic actually tests, the HI-GBC Exam Domains 2026: Complete Guide to All 8 Content Areas is the companion resource to this article.

Concrete (C-31a scope)

Because this domain ties for the largest weight, every point you can lock down here moves you closer to 60 correct.

  • Formwork requirements and placement sequencing
  • Mix specification and curing considerations tied to C-31a scope
  • Reinforcement placement as it appears in plan-reading contexts

Associated Trades

This domain spans interior and exterior finishes plus windows and doors - a wide net that rewards broad familiarity over deep specialization in any single sub-topic.

  • Interior finish sequencing and compatibility with rough framing
  • Exterior finish systems and weather exposure considerations
  • Window and door installation tolerances and flashing basics

Why Some Questions Don't Count

Here's a detail that trips up candidates who obsess over timing: the exam may include up to 10 unscored experimental questions mixed in with the 80 scored ones. You won't know which is which. PSI expressly states that time spent on these experimental items does not count against your 240-minute limit - so the clock effectively adjusts to accommodate them.

The practical takeaway: don't panic if a question feels oddly worded or unlike anything in your references. It may simply be experimental. Treat every question with the same effort and pacing discipline, and trust that the 60-out-of-80 scoring only applies to the items that are actually graded.

Key Takeaway

Don't try to guess which questions are experimental during the exam - it's not possible to identify them reliably, and doing so wastes mental energy better spent on accuracy.

Domain Weight and the 75% Threshold

Because the passing score is a flat 75% across all scored questions rather than a per-domain minimum, you technically don't need to pass every domain individually - you need to hit 60 correct overall. That said, treating any domain as expendable is risky, especially the two largest: Concrete and Associated Trades. A candidate who is strong in Carpentry and Sitework and Foundations but weak in Concrete may find the math simply doesn't work out, because there aren't enough questions elsewhere to compensate.

This is where domain-level self-assessment matters more than raw study hours. If you're unsure how difficult the exam actually is relative to your current knowledge, How Hard Is the HI-GBC Exam? Complete Difficulty Guide 2026 breaks down what makes this exam challenging beyond just content volume - including the closed-book format and the 240-minute pacing pressure across 80-90 total items.

ComponentDetail
Scored questions80
Passing score75% (60 correct)
Time allowed240 minutes
Experimental questionsUp to 10, unscored, time excluded
FormatComputer-based multiple-choice, closed book
CalculatorOn-screen PSI calculator or approved silent, nonprinting, nonprogrammable device

Don't Forget the Business and Law Exam

The 60-out-of-80 passing score applies to the trade exam only. New applicants must also pass a separate Business and Law examination, which carries its own $80 fee - bringing total examination charges to $165 when combined with the $85 trade exam fee. The Business and Law outline was updated as of March 30, 2026, so if you registered under an older bulletin, verify you're studying the current version.

Both exams must be passed within six months of Board approval to register, so plan your study sequence accordingly rather than treating them as unrelated hurdles. For the full cost picture - including the $50 sole-proprietor/RME application fee and 2026 renewal figures - see HI-GBC Certification Cost 2026: Complete Pricing Breakdown.

Registration Reminder: You must obtain Hawaii Contractors License Board approval before registering for either exam, and complete both within six months of that approval. Missing this window means restarting the approval process.

Closed-Book Format and What That Means for 60/80

One detail that directly affects how you should prepare: the exam is closed book. The 2018 IBC and other listed trade references are useful for studying the material, but none of them are admitted into the testing room. Everything you need to answer those 80 scored questions has to already be in your head - or derivable from an on-screen or approved silent, nonprinting, nonprogrammable calculator for numeric items.

This changes your prep priority. Memorizing where to look something up in a reference book won't help you on exam day; you need working recall of code concepts, sequencing, and calculation methods tied to Plan Reading and Estimating, Sitework and Foundations, and the rest of the eight domains. If your current study approach leans heavily on "I'll look it up," it's time to shift toward active recall drills built around each domain's actual scope.

A Domain-Focused Path to 60 Correct

Generic study calendars don't account for the fact that Concrete and Associated Trades carry more weight than the other six domains combined in relative terms. A smarter allocation front-loads those two areas, then works through the remaining domains in rough proportion to their likely share of the 80 scored questions.

Weeks 1-2

Concrete (C-31a) and Associated Trades

  • Drill formwork, mix, and curing scenarios
  • Review interior/exterior finish and window/door installation basics
  • Take domain-isolated practice questions, not full exams yet
Weeks 3-4

Plan Reading and Estimating, Sitework and Foundations, Carpentry

  • Practice takeoff and estimating problems under time pressure
  • Review foundation and excavation sequencing
  • Work framing and carpentry scenario questions
Weeks 5-6

Roofing (C-42a/C-42b), Safety OSHA, Thermal and Moisture Protection

  • Confirm roofing scope stays within C-42a/C-42b boundaries
  • Memorize core OSHA safety triggers relevant to building sites
  • Review moisture barrier and insulation placement logic
Final Week

Full Timed Simulation

  • Run a full 80-question, 240-minute simulated exam
  • Score against the 60-correct threshold, not a generic percentage
  • Revisit only the domains where you fell short of 75%

For a more detailed week-by-week strategy and first-attempt tactics, pair this timeline with the HI-GBC Study Guide 2026: How to Pass on Your First Attempt. And once you've reviewed the domains individually, running full-length practice on our practice test platform is the most reliable way to confirm you can actually sustain 75% accuracy across all 80 scored questions in one sitting.

Common Ways Candidates Miss 75%

A few patterns show up repeatedly among candidates who fall short of 60 correct:

  • Treating all domains equally. Spending identical study hours on Safety OSHA and Concrete, despite Concrete carrying more scored questions, dilutes prep where it matters most.
  • Assuming reference familiarity equals readiness. Because the exam is closed book, knowing the 2018 IBC exists isn't the same as recalling its relevant provisions from memory.
  • Misjudging pacing across 240 minutes. With up to 90 total questions on screen (80 scored plus up to 10 experimental) and time protected only for the experimental ones, candidates who don't pace themselves against the 80 scored items can run short.
  • Narrow domain scope confusion. Studying general concrete or roofing knowledge broadly instead of the outline's specific C-31a and C-42a/C-42b restrictions wastes prep time on material outside the tested scope.
  • Skipping the Business and Law exam prep. Passing the trade exam alone doesn't complete licensure - the $80 Business and Law exam has its own passing requirement and updated outline.

If you want a broader view of what "difficulty" actually means for this exam beyond the raw score, the HI-GBC Pass Rate 2026: What the Data Shows article is a useful companion, as is checking your eligibility timeline in HI-GBC Requirements 2026: Eligibility, Prerequisites & How to Qualify before you lock in a study schedule.

Key Takeaway

Score gaps are almost always domain-specific, not general knowledge gaps. Identify which of the eight domains is dragging your practice scores below 75% and concentrate there.

Frequently Asked Questions

What exact score do I need to pass the HI-GBC trade exam?

You need 75% correct on the scored portion of the exam, which equals 60 correct answers out of the 80 scored questions on the B trade exam.

Do the experimental questions count toward my passing score?

No. Up to 10 unscored experimental questions may appear alongside the 80 scored ones, but they are not counted toward your 75% passing score, and PSI states the time spent on them does not count against your 240-minute limit.

Is the Business and Law exam scored the same way as the trade exam?

The Business and Law examination is a separate exam with its own $80 fee and its own outline, updated March 30, 2026. It is distinct from the 80-question, 75%-threshold trade exam covered in this article.

Can I bring the 2018 IBC or other references into the exam room?

No. The exam is closed book. The 2018 IBC and other listed trade references are intended for study purposes only and are not permitted during the actual test.

Which domains should I prioritize to reach 60 correct answers?

Concrete (scoped to C-31a) and Associated Trades tie for the largest share of the outline, making them the highest-leverage domains to master first, followed by Plan Reading and Estimating, Sitework and Foundations, and the remaining domains.

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