What Does a Structural Inspection Include? (Florida 2026)
By Judian Duran, PE, StS-1, Founder and Principal Structural Engineer at Duran Structural. Last updated August 2026.
Every building carries its own weight, plus wind, plus whatever you put inside it, along a connected chain of parts. The U.S. Department of Energy’s Building America program calls that chain a continuous load path: the structural condition required to resist all loads acting on a building (Building America Solution Center, PNNL, 2026). A structural inspection is a licensed engineer walking that chain from roof to foundation and judging whether every link still does its job.
That’s narrower and deeper than the home inspection most buyers know, and it ends in something that inspection never produces: a sealed engineering report. Here’s what we examine, in what order, how the work escalates, and what to have ready.
Key Takeaways
- A structural inspection follows the load path, not a room-by-room checklist. Loads travel from roof through walls to foundation, and the connections between those assemblies are where failure starts (Building America Solution Center, PNNL, 2026).
- The work runs in two tiers. ACI’s guide for assessing concrete structures moves from preliminary assessment to detailed assessment, adding condition survey, exploratory openings, and sampling and testing only as needed (American Concrete Institute, 2019).
- It’s not a home inspection. ASHI’s Standard of Practice says inspectors aren’t required to provide engineering analysis or offer an opinion about the adequacy of structural systems and components (ASHI, 2026).
- The deliverable is a sealed document. Florida requires a Professional Engineer to sign, date and seal all final plans, specifications, reports, or other documents the licensee prepares or issues (Florida Board of Professional Engineers, 2026).
What is a structural inspection?
A structural inspection is a licensed engineer examining the parts of a building that carry load and judging what their condition means for safety and service life. ASCE’s guideline for structural condition assessment covers buildings of concrete, masonry, metals, and wood, and lays out assessment procedures, materials properties and test methods, and evaluation procedures (ASCE, 2000).
The engineer isn’t grading finishes. The question is whether the structure carries its loads the way it was designed to. Our structural assessment and peer review work starts there, whether it’s a 1920s Hyde Park bungalow or a mid-rise on the bay.
Inspections get ordered for plenty of reasons: a crack that keeps growing, a sale under contract, a permit comment, an insurance dispute, a milestone deadline. The reason shapes the scope; the method doesn’t change.
What does an engineer actually look at, and in what order?
We work the load path, usually top down, because that’s the direction loads travel. Roof to connections to walls to floors to foundation to soil, with the envelope checked alongside, because water is what turns a sound structure into a deteriorated one.
| Where we look | What we’re checking | What a problem looks like |
|---|---|---|
| Roof structure | Trusses, rafters, ridge, sheathing, bracing, bearing at the wall | Sag along a ridge, split or field-cut truss webs, sheathing that flexes underfoot |
| Roof-to-wall connections | Straps, clips, anchors, nailing at the bearing points | Missing or half-driven fasteners, rust bleeding from a strap, straps nailed into nothing |
| Walls and vertical elements | Load-bearing walls, columns, shear elements, openings and headers | Diagonal cracks off window corners, bowed or out-of-plumb walls, headers with no visible bearing |
| Floor framing and slabs | Joists, girders, bearing points, notching and drilling, deflection | Springy floors, doors that stopped closing, joists notched at plumbing runs |
| Beams, columns, connections | Welds, bolts, bearing plates, embeds, hardware | Corrosion concentrated at connections rather than mid-span, missing bolts, cracked bearing |
| Foundation | Footings, stem walls, slab, piers, piles, grade beams | Stair-step cracking, differential settlement, spalling at the base, exposed reinforcing |
| Soil and site evidence | Drainage, grade, trees, prior excavation, signs of ground movement | Water ponding against the building, downspouts discharging at a footing, depressions in the yard |
| Envelope and water intrusion | Where water gets in and what it lands on | Stains, efflorescence, rot at band joists, corrosion under a chronic leak |
Soil evidence matters more here than most places. Florida is underlain by carbonate rocks statewide, and the Florida Geological Survey lists causes that mimic sinkhole activity: compressing clay or organic layers, decomposing stumps, broken sewer lines, poorly compacted fill (Florida Department of Environmental Protection, 2026). Same crack, four different answers.
The tells are material-specific: wood, steel, concrete, masonry
What counts as evidence changes with what the building is made of. Wood is a moisture problem first. The USDA Forest Products Laboratory is direct: serious decay occurs only above the fiber saturation point, averaging 30 percent moisture content, while fully air-dried wood usually sits at no more than 20 percent, a reasonable margin of safety against fungal damage (USDA Forest Products Laboratory, 2010).
| Material | What deterioration looks like | How we confirm it |
|---|---|---|
| Wood framing | Softening, punky fibers, fungal staining, insect galleries, crushed bearing | Moisture meter readings, probing with an awl, removing a small area of finish |
| Structural steel | Pack rust at faying surfaces, pitting, section loss at splash zones and ground contact | Cleaning to bare metal, caliper or ultrasonic thickness readings at the worst section |
| Reinforced concrete | Rust staining, cracking parallel to the bars, delamination, spalling with reinforcing exposed | Sounding by chain drag or hammer tap, cover meter, chloride sampling |
| Masonry | Stair-step cracking in mortar joints, bulging or displaced wythes, cracked lintels | Crack mapping and monitoring over time, borescope into a cell, mortar sampling |
Sounding isn’t a habit, it’s a written method. ASTM D4580/D4580M covers surveying concrete bridge decks by sounding to find delaminations: drag a chain across the surface, or tap with a steel rod or hammer, and listen for the dull hollow note (ASTM International, 2018). The same technique reads a balcony slab or a parking deck.
Around Tampa Bay, salt air moves all of this along faster, especially at connections and embedded hardware, which is why our coastal engineering work concentrates there.
How is a structural inspection actually conducted?
Visual examination first, targeted investigation only where something warrants it. That’s the sequence in ACI’s guide for assessing concrete structures, which moves from preliminary assessment to detailed assessment through document review, condition survey and visual inspection, exploratory openings, and sampling and testing (American Concrete Institute, 2019).
Non-destructive investigation gathers data without damaging the building: borescopes through a small hole, level surveys that measure how far a floor has moved, and crack monitors that say whether a crack is still opening. Most of what we need comes from these.
Destructive investigation means removing material. Opening drywall to see a band joist, chipping concrete to expose a bar and measure remaining diameter, cutting a test opening in stucco. It answers questions nothing else can, and it costs money to open and close.
“I’d rather spend an extra hour looking before I spend your money cutting. Almost every opening I make is one the walk already told me to make.”
- Judian Duran, PE, StS-1
Envelope questions have their own field method. ASTM E1105 covers field determination of water penetration of installed exterior windows, skylights, doors and curtain walls by uniform or cyclic static air pressure difference (ASTM International, 2015). When the argument is where water gets in, that settles it.
Not sure what you’re seeing needs any of this? A short call sorts it out: (813) 536-8002 or our contact page.
What do you get at the end of a structural inspection?
A written engineering report, signed, dated and sealed. Under Section 471.025(1), Florida Statutes, the final reports and documents a Florida Professional Engineer prepares or issues have to carry that signature, date and seal (Florida Board of Professional Engineers, 2026). The seal is a license standing behind the findings.
That’s why it carries weight with a lender, an insurer, a building department, or a court. A useful report answers four things: what was observed, what it means structurally, what needs to happen, and how urgently. Photographs get keyed to locations, and recommendations get specific enough for a contractor to price. Where findings will be argued over, that’s forensic territory and the documentation standard rises.
A good report also states its limits plainly: it covers what was accessible that day. Concealed framing and buried foundations stay unknown until someone authorizes opening them, and no engineer can promise a structure will perform against future storms or deferred maintenance. After a named storm that boundary moves fast, which is why post-storm evaluation is its own discipline.
How is this different from a home inspection or a code inspection?
The home inspection boundary is written into that profession’s own rules. ASHI’s Standard of Practice says inspectors aren’t required to provide engineering analysis or to offer an opinion about the adequacy of structural systems and components (ASHI, 2026). InterNACHI draws the same line, exempting inspectors from determining the adequacy of foundation bolting, bracing, joists, joist spans or support systems (InterNACHI, 2026).
| Structural inspection | Home inspection | Code or permit inspection | |
|---|---|---|---|
| Who performs it | Licensed Professional Engineer | Home inspector | Local building official |
| What triggers it | A concern, a transaction, a claim, a deadline | Usually a sale | An open permit |
| Scope | The load-carrying structure, in depth | Many systems, broad and non-invasive | The permitted work, against the code |
| Opinion on structural adequacy | Yes, that’s the point | Not required to offer one | Only as to code compliance for that work |
| Deliverable | Signed, dated, sealed engineering report | Inspection report | Pass, fail, or a correction notice |
That’s a sensible boundary, not a knock on home inspectors, and much of our residential work arrives because an inspector did their job and flagged something outside it. Our post on when to hire a structural engineer in Tampa walks through that decision.
Code inspections are a third thing. The City of Tampa’s list for new residential construction runs pre-construction, footer, stem wall, slab, tie beam, sheathing, framing and final, with more depending on the project scope of work (City of Tampa, 2026). Those are checkpoints during construction, not a condition assessment of a building that’s already standing.
How to prepare, and what makes an inspection more useful
Documents, first. ACI’s assessment guide puts document review ahead of the field work and asks for design information, materials information, construction information, service history, and project documents (American Concrete Institute, 2019). An engineer who’s seen the original framing plan works faster than one reverse-engineering the building from outside.
Bring whatever you have: original drawings, permit records, prior engineering reports, roof and repair invoices, insurance claims, photographs from before the problem appeared. Dated photos turn “is this crack moving?” from a judgment call into an observation. On older buildings that archive carries real weight, which is why our historic preservation and adaptive reuse projects often start in a records office.
Then make the building accessible. Clear the attic hatch and crawl space entry, move storage off garage walls, open roof access, pull furniture back. Every square foot we can’t reach becomes a line in the report saying so. And write down what you’ve noticed: when it started, what’s changed, what season it worsens in.
Frequently Asked Questions
How long does a structural inspection take?
In our practice the site visit runs a few hours for a single-family home and a full day or more for a larger building. The reason is scope: the engineer walks the whole load path, roof through walls to foundation (Building America Solution Center, PNNL, 2026), rather than sampling rooms. Report turnaround usually adds one to two weeks.
Will the engineer have to open up walls?
Usually not. Assessment guidance runs preliminary before detailed, with exploratory openings and sampling reserved for what the visual survey raises questions about (American Concrete Institute, 2019). We’ll tell you what we want opened, why, and what we expect to find before anything gets cut.
Does a structural inspection check code compliance?
Not automatically. Code inspections are permit checkpoints run by the building official against approved plans and the project’s scope of work (City of Tampa, 2026), and InterNACHI’s standards likewise exempt home inspectors from code determinations (InterNACHI, 2026). Ask for a code review up front if you need one.
Does the engineer come back after the repairs are done?
If you want the repairs documented, yes. We return to verify the work matches what was specified, then issue a sealed letter, since Florida requires a Professional Engineer to seal the documents they issue (Florida Board of Professional Engineers, 2026). Lenders and insurers usually want that letter.
Who can perform a structural inspection in Florida?
A licensed Professional Engineer. Their final reports must be signed, dated and sealed under Section 471.025(1), Florida Statutes and Rule 61G15-23.001(1) (Florida Board of Professional Engineers, 2026). Duran Structural is led by a Professional Engineer licensed in Florida, North Carolina, Georgia, and Alabama, with over a decade of practice behind the seal.
Talk it through before you commit to anything
Most people asking about a structural inspection aren’t ready to hire an engineer yet. They’ve got a crack, a letter, or a bad feeling, and they want to know whether it’s serious.
We’ll tell you honestly whether it needs an engineer, a contractor, or nothing at all. No obligation. Duran Structural is a Tampa firm led by a licensed Professional Engineer with over a decade and 100-plus projects behind him, across residential, commercial, and healthcare buildings. Call (813) 536-8002 or use the contact form.
The short version
A structural inspection follows the load path from roof to foundation, reads the material-specific evidence in wood, steel, concrete and masonry, escalates to targeted investigation only where the evidence points, and ends in a sealed report with a defined scope and stated limits.
If something’s bothering you about your building, get eyes on it before you spend money on repairs nobody has diagnosed. Our structural assessment and peer review page explains how we scope that work, and the services and resources pages show where it fits alongside renovation and new construction design.
Judian Duran, PE, StS-1 is the founder and principal structural engineer of Duran Structural, a boutique Tampa firm serving all of Florida. He’s a licensed Professional Engineer in Florida, North Carolina, Georgia, and Alabama with over a decade across 100-plus projects, and he brings big-firm rigor earned over eight years at Thornton Tomasetti to a hands-on, owner-minded practice. As an StS-1 certified Structures Specialist on Florida Urban Search and Rescue Task Force 3, he leads the firm’s post-storm evaluation work. He also sits on the ASCE 24 Flood-Resistant Design committee and is a contributing author to FEMA P-2345, the Building Designer’s Guide to Calculating Flood Loads Using ASCE 7-22 Supplement 2.
This article is general information, not project-specific engineering advice. Consult a licensed engineer about your own structure.
