What Is A PE-S?

What the PE Structural Exam Actually Is

On this site, "PE-S" is shorthand for the Principles and Practice of Engineering - Structural examination published by the National Council of Examiners for Engineering and Surveying (NCEES). NCEES labels it "PE Structural," and most engineers search for it as the "SE exam." It is the examination structural engineers take to demonstrate competence in designing buildings and bridges that resist gravity, wind, and seismic forces.

It is not the PE Civil: Structural exam, and it is not a buildings-only test. The PE Structural exam spans both buildings and bridges in its breadth sections, then lets you specialize in one of those two in depth. If you want the shorthand explained in other ways, our pages on what PE-S stands for and PE-S meaning cover the naming.

Passing the exam is one piece of the licensure puzzle. Eligibility, acceptance of the exam, license issuance, and continuing-education renewal are all decided by your licensing board, not by NCEES. For the eligibility side of that picture, see PE-S requirements and how to qualify.

Four Sections, Four Sittings

The defining feature of this exam is its structure. A complete attempt is not one marathon day. Pearson VUE administers four separately scheduled computer-based sections:

1. Vertical Forces (Gravity/Other) and Incidental Lateral: breadth
2. Vertical Forces (Gravity/Other) and Incidental Lateral: depth
3. Lateral Forces (Wind/Earthquake): breadth
4. Lateral Forces (Wind/Earthquake): depth

Both the Vertical and Lateral components must reach an acceptable result, and an acceptable completed-component result does not expire. That means you can pace yourself across multiple windows rather than sitting everything at once.

Each appointment also includes a 2-minute nondisclosure agreement, an 8-minute tutorial, and a 20-minute scheduled break. Totaled across all four sections, one attempt means 230 questions (170 scored, 60 pretest) and 23 actual testing hours, within 25 hours of appointment time, spread across four sittings.

What the Breadth Sections Cover

The breadth sections are multiple-choice and cover both buildings and bridges. Each component's specification is organized into two major areas, and the published question ranges show where the emphasis sits:

• Vertical breadth: Analysis of Structures (15-23 questions) and Design and Details of Structures (30-48 questions)
• Lateral breadth: Analysis of Structures (17-26 questions) and Design and Details of Structures (28-46 questions)

Design and Details carries the larger range in both outlines. NCEES publishes ranges rather than fixed percentages, so any precise "weighting" you see elsewhere is an inference, not an official allocation. For the full topic-by-topic breakdown, see our guide to all 54 PE-S content areas.

NCEES notes that the subordinate examples listed under these headings are neither exclusive nor exhaustive, and that the specifications describe what may be tested, not a curriculum for learning it.

Depth: Choosing Buildings or Bridges

The depth sections are where you specialize. You select either Buildings or Bridges, and you must use the same option in both the Vertical and Lateral depth components. You do not take both tracks.

Vertical Depth Scenario Topics

Lateral Depth Scenario Topics

Depth Knowledge Areas

Across both components, depth questions are framed by knowledge areas that may be included in the scenarios. For Buildings, these are conceptual design and project planning; structural loading and analysis; design and details of elements; design and details of joints and connections; and preparation of documents and construction administration. For Bridges, they are conceptual design and project planning; structural loading and analysis; and design and preparation of details.

NCEES presents these as topics that may appear, not as guaranteed independent allocations. Notice that the Buildings knowledge areas reach beyond calculation into documentation and construction administration, which reflects how structural engineers actually work.

Question Styles and Scoring

Breadth is straightforward in form: multiple-choice, single-response questions covering both buildings and bridges. Depth is a different animal. Each 2026 depth section contains five alternative-item-type scenarios of 12 items each. Four of those scenarios contain 10 scored and 2 pretest items; the fifth contains 12 pretest items.

Two practical consequences follow. First, alternative item types receive no partial credit, so a nearly correct multi-step response earns nothing. Second, because one full scenario is entirely pretest, a meaningful share of what you work in depth will not count, yet you can't tell which scenario it is. Careful, complete answers throughout remain the only safe approach.

NCEES uses an equated minimum-competence standard and does not publish a universal passing score. See what the PE-S passing score means for how to interpret that.

Reference Materials and Tools

• The exam is closed book. You work from the supplied electronic NCEES PE Structural Engineering Reference Handbook and specified electronic design standards.
• No personal references are allowed.
• Questions use USCS units.
• Only approved calculators may be used.
• The applicable 2026 code editions are listed in the specifications, and searchable standards are presented by chapter.

Because the standards are searchable electronic documents organized by chapter, navigation speed is itself a testable skill. Practicing in an interface that mirrors the exam environment is worth the effort; the PE-S practice test site is built for that kind of timed repetition.

Fees, Registration, and Scheduling Mechanics

NCEES charges USD 350 per section. For one attempt at all four sections, that calculates to USD 1,400. That figure excludes board charges, preparation costs, and retakes, all of which vary. Our PE-S certification cost breakdown walks through the other line items.

Because breadth is offered year-round while depth is limited to two windows, depth dates should anchor your plan. Work backward from the depth administration you are targeting, then fit breadth sections into the flexible calendar around it. More on timing is in our PE-S exam dates guide.

What the Published Pass-Rate Table Shows

NCEES publishes pass rates by section and option rather than as a single overall figure. The table updated July 2026 reports first-time and repeat cohorts separately:

Read these carefully. They describe separate section and option populations, not one overall SE pass rate, and they are not October 2026 outcomes. Some groups are small (for example, 14 or 16 examinees), so those percentages are volatile. Also note that the breadth sections show the lowest first-time rates in this table, which suggests that the broad, multi-material, buildings-and-bridges scope is a genuine hurdle. Our pages on PE-S pass rates and how hard the exam is add context.

The April 2027 Depth Format Change

If you are planning beyond the October 2026 window, note a version boundary. Starting April 2027, each depth section changes to 48 questions: 40 scored and 8 pretest. Actual testing time stays at 6 hours, and the format includes multiple-choice plus alternative item types. NCEES posts separate 2027 specifications and standards for that version.

Do not mix the two versions. The 60-question, 40-scored, 20-pretest depth structure and the domain scope described in this article apply to the 2026 administrations. One source wrinkle is worth knowing: the NCEES Examinee Guide summary table lists 60 depth questions alongside 2027 dates, while the dedicated Structural exam page explicitly specifies 48 beginning April 2027. The Structural page's version-specific notice governs.

Who Hires Licensed Structural Engineers

The exam exists because structural design carries public-safety stakes, and the employers who value the credential reflect that. Typical employers include:

• Structural engineering consulting firms designing commercial, institutional, and residential buildings
• Bridge and transportation engineering firms working on highway, rail, and water-crossing structures
• State and local transportation agencies that own and inspect bridges and retaining structures
• Design-build contractors and construction managers needing in-house structural review
• Forensic and existing-structure specialists evaluating damage, renovation, and retrofits

The depth choice maps neatly onto these paths: a Buildings track fits consulting and building-focused practice, while a Bridges track fits transportation work. For role-level detail, see our overview of PE-S jobs, and for the financial side, the PE-S salary guide and ROI analysis. We avoid quoting salary figures here because they vary widely by region, employer, and experience.

Sequencing Your Preparation Around the Exam's Structure

Because the exam is four sittings with a fixed depth calendar, sequence matters more than a generic weekly template. One workable approach ties study blocks to the exam's actual content:

Since an acceptable completed component does not expire, many candidates tackle Vertical first, then Lateral, though the order is your choice. For a fuller plan, read the PE-S study guide and keep the PE-S cheat sheet handy for quick fact review. Timed question practice on the main practice test site helps build the pacing that a 6-hour depth section demands.

Frequently Asked Questions

For a plain-language definition of the credential itself, you can also visit our pages on what PE-S certification is and the PE-S certification overview.