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For inspectors sitting the ICC S1 structural steel and bolting special inspector exams

ICC S1 course and practice exams

Bolting, materials and framing checks on the S1 outline, then timed practice on the 2-hour S1C clock.

Practice “Pre-installation Verification” in the courseYou read the free sample for this module. The course has the full lesson and its practice questions, one at a time with the explanation after each answer.

Plans and prices

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Ask Tack about this course AI

Tap a question, or type your own. With S1 course: up to 40 messages a day.

    Answers come from this course's own plans and contents.

    • 8 modules of lessons, each with a short check
    • 3 timed exams at real length: 60 questions, 120 minutes
    • 120 flashcards with spaced review

    Lifetime access, including your retake

    Paid to ICC, not us Exam fee $210. Our prices above cover the prep, not the exam.

    Not ready? Try the free 10-question check

    Other options

    Have my manager pay instead

    Your manager pays with a company card. You get the plan.

    Buying for a team, or need an invoice or purchase order? Email us at hello@filletgauge.com.

    Everything in S1 course

    Learn each S1 outline area, then prove it on timed practice exams.

    One payment. Lifetime access.
    • 8 lesson modules covering every task in ICC's S1 outline
    • A week-by-week study plan built from your free check and exam date
    • 218 original questions, each explained with the reference it uses
    • 3 full-length timed exams (60 questions, 120 minutes), weighted like the real exam
    • After each timed exam, see how each domain moved since your last one
    • Domain scores after every drill show what to study next
    • Exam-day checklist: what to bring, allowed references and the on-screen calculator
    • Today's 10: ten a day, and every miss comes back until you get it right
    • Listen to Today's 10 on the go
    • Readiness by domain, from your own practice results
    • Every question, reshuffled into new sets aimed at your weakest domain
    • Flashcards for every domain, with spaced review
    • Tack, your AI study assistant

    Best if: You want a structured path to the S1 special inspector exams.

    What's covered

    • Duties and Responsibilities; Notification of Discrepancies; Inspection and Test Reports (Outline topics S1.1.1 to S1.1.3)
    • Material Identification (Outline topic S1.2.1)
    • Material Sampling (Outline topic S1.2.2)
    • Bolts, Nuts, and Washers (Outline topic S1.3.1)
    • Pre-installation Verification (Outline topic S1.3.2)
    • Installation, Testing, and Inspection (Outline topic S1.3.3)
    • Orientation and Frame Member Sizes (Outline topic S1.4.1)
    • Base Plates (Outline topic S1.4.2)

    See every lesson topic

    In S1 course

    • 218original questions
    • 3timed exams at real length
    • 8modules of lessons
    • 120flashcards

    See how Tack answers

    Finding things fast in an open-book exam

    In an open-book exam, which habit saves the most time on each lookup?

    1. Reading every chapter in full first
    2. Knowing the chapter order and starting from the indexYour answer, right
    3. Guessing first and checking later
    4. Starting from page one each time

    You: I know the material, but I run out of time looking things up. What should I change?

    Tack: Learn where things live, not every word. Know the chapter order, start from the index with the plainest word for the topic, and tab the chapters you open most where the exam rules allow it.

    Key point: Know where to look and you save minutes on every lookup.

    An original example, not an exam question. AI can be wrong, so check it against your course.

    What members get

    With the course.

    • Today's 10 on the course home: ten questions picked from your missed questions and your weakest domainToday's 10 10 questions a day from your misses and your weakest domain, so what you got wrong comes back. Plus a missed set of up to 50.
    • The week card's Add my study plan to my calendar button and the full week-by-week planA plan to your exam date Set your date and get a week-by-week plan you can add to your calendar in one tap.
    • The readiness bar against its study target markerReadiness by domain Your practice results against a 75% study target, and how they moved this week. A study target, not a pass prediction.
    • Timed exams on the real clock. A live pace line, and Save and exit when you need a break. You pick up with the time you had left.
    • Where your time went. After an open-book timed exam, your slowest questions become a practice set.
    • An exam-day guide. What to bring, the references you may use and the calculator rules.

    See your dashboard first

    Starter dashboard. Day 1 and the parts marked open are free.

    Free. Your dashboard opens as soon as you save.

    • 218 original questions, every one explained. Review every miss after each timed exam. Practice sets show you the ones you haven't seen first.
    • Wrong answer key? We fix it within 2 business days and log it publicly.
    • One payment. No subscription, nothing renews.
    • Didn't pass? Every plan except the 7-day pass has lifetime access. Your retake prep is already paid for.

    Instant access. Everything in the plan you choose opens as soon as checkout completes.

    The free check uses the same question style and explanations as the course.

    See the teaching before you buyRead a complete lesson from the course, “Pre-installation Verification”, and try a short practice set with full explanations. Free, no signup.

    Read the free lesson

    What the course covers

    8 modules, mapped to the task numbers in International Code Council's published S1 content outline.

    1. Duties and Responsibilities; Notification of Discrepancies; Inspection and Test Reports (Outline topics S1.1.1 to S1.1.3)
      The statement of special inspections and the construction documents · Deviations: who to tell, and in what order · Progress reports and the final report
    2. Material Identification (Outline topic S1.2.1)
      Shapes, grades and mill test reports · Bolt, nut and washer markings and certifications · Matching what arrives to what the plans call for
    3. Material Sampling (Outline topic S1.2.2)
      Test type, quantity, location and frequency · Identifying, documenting and shipping samples · Checking that the required tests were done
    4. Bolts, Nuts, and Washers (Outline topic S1.3.1)
      Bolt types, sizes and grades for the joint specified · Holes: standard, oversized and slotted · Washers and where they go · Storage and condition of fastener assemblies
    5. Pre-installation Verification (Outline topic S1.3.2)
      Faying surfaces and slip-critical joints · Pre-installation verification testing with a tension calibrator · Working a verification test from given readings
    6. Installation, Testing, and Inspection (Outline topic S1.3.3)
      Snug-tight, pretensioned and slip-critical joints · The four pretensioning methods · Tightening sequence and inspecting the result
    7. Orientation and Frame Member Sizes (Outline topic S1.4.1)
      Reading framing plans and connection details · Member sizes, orientation and details in the field · Tolerance checks from given limits
    8. Base Plates (Outline topic S1.4.2)
      Base plate configuration, holes and anchor rods · Grout clearance, placement and sampling · Seating and fastening the plate

    Questions

    When do I get access?

    Straight away. Checkout takes you to your course, and the receipt email has the same link.

    How do I get back into my course?

    Use the link in your receipt email. If you can't find it, enter your email on the course page and we resend it to the address on your order.

    Is 218 questions enough?

    Each one comes with a worked explanation and its reference. You also get 24 end-of-module checks. Today's 10 and your missed set bring your misses back on later days, so you work the bank instead of reading it once.

    Can I get a refund?

    Eligibility depends on your plan, when you request a refund and your paid use. See the refund terms for the conditions and exceptions.

    What if I need a retest?

    Keep studying in the same course. Your access has no end date, so your retake prep is already paid for, and your practice history, missed questions and readiness by domain are still there. The 7-day pass is the exception: it ends after 7 days.

    How long do I keep access?

    Lifetime access: your access has no end date. Updates are included, so if International Code Council moves this exam to a newer code edition while you have access, your course moves with it. The 7-day pass is the exception. 7-day pass: access ends 7 days after payment, to the minute. It does not renew and is not a subscription. A timed practice exam started before then can still be finished.

    More questions (6)
    If I buy the 7-day pass now, is its price taken off a bigger plan later?

    No. Each plan is a separate purchase at its listed price, and the $29 paid for the 7-day pass is not credited toward another plan. With more than a week before your exam, a full plan is the better buy.

    Are the questions copied from the exam?

    No. Every question is original and written to International Code Council's published content outline. Exam content is confidential and we never use it. We are not affiliated with or endorsed by AWS, ICC or AISC.

    How are the questions written?

    In our own words, to ICC's current published outline. See how many questions cover each domain.

    Can my employer pay?

    Yes. Pay at checkout and we email a receipt you can expense, or download a reimbursement request to send your manager.

    Is Tack AI?

    Yes. Tack is an AI study assistant, not a person or an instructor. Check important details against your lessons and references.

    Can you promise I will pass?

    No, and nobody honest can. We promise everything listed in your plan, and a fix within 2 business days for any wrong answer key.

    Employer paying?

    Many employers fund ICC S1 prep. Generate a reimbursement request PDF to send to your manager. Buying for a crew? Request a quote