Engineering Knowledge Center

Structural Resources

Load paths, retrofits, existing buildings, and when a structural PE is required. 21 guides written by the licensed engineers who do the work.

Structural Engineering · 6 min

When Do You Need a Structural Engineer?

Not every project requires a structural engineer — but many do. Here's how to know when to call one and what happens if you don't.

Structural Engineering · 5 min

How Much Does Structural Engineering Cost?

Structural engineering fees depend on scope, complexity, site conditions, and deliverables. Here's how to understand what drives cost — and what to expect.

Structural Engineering · 4 min

What Does a Structural Engineer Need to Start a Project?

The right documents from the start saves everyone time. Here's exactly what to send when you request structural engineering services.

Structural Engineering · 5 min

Structural Engineer vs. Architect: Who Do You Need?

Architects design how buildings look and function. Structural engineers design how buildings stand up. Most projects need both — here's how they work together.

Structural Engineering · 6 min

Can Structural Engineering Be Completed Without Original Building Plans?

No existing drawings? Engineers can still work. Here's how structural engineering is completed when original plans are unavailable — and what information helps most.

Structural Engineering · 5 min

When Does a Structural Engineer Need to Visit the Site?

Many projects can be engineered remotely. Some can't. Here's how to know whether your project requires an engineer site visit — and why it matters.

Structural Engineering · 5 min

What Field Information Does a Structural Engineer Need?

Good field documentation makes remote engineering possible. Here's exactly what information helps most — and how to collect it correctly.

Structural Engineering · 5 min

Do You Need a Structural Engineer to Remove a Load-Bearing Wall?

Yes — every time. Here's why load-bearing wall removal always requires structural engineering, what the process looks like, and what to expect.

Structural Engineering · 4 min

Does New Rooftop HVAC Equipment Require Structural Review?

In most cases, yes. Here's when rooftop RTU replacement or new mechanical equipment triggers a structural engineering requirement — and what that review covers.

Structural Engineering · 5 min

When Should Building Cracks Be Evaluated by a Structural Engineer?

Not all cracks are structural emergencies — but some are. Here's how to tell the difference and when to call a structural engineer.

Structural Engineering · 4 min

When Are Structural Plans Required for a Building Permit?

Most projects that touch structural elements require PE-stamped structural drawings for the building permit. Here's what triggers the requirement.

Structural Engineering · 5 min

What Is the Difference Between a Structural Engineer and a Civil Engineer?

Structural and civil engineers both shape the built environment but solve different problems. Here's what each does, where they overlap, and who you need.

Structural Engineering · 5 min

What Is Included in Structural Drawings?

Structural drawings communicate the load-carrying design to permit reviewers and builders. Here's what a complete set includes and why each sheet matters.

Structural Engineering · 5 min

What Are Structural Calculations?

Structural calculations prove a design carries code-required loads safely. Here's what they contain — loads, load combinations, member checks — and why AHJs require them.

Structural Engineering · 5 min

How Do You Photograph Existing Conditions for an Engineer?

Good field photos let engineers work faster and more accurately on existing buildings. Here's a practical guide to what to shoot, how to label it, and what to avoid.

Structural Engineering · 4 min

Does a Remodel Need Structural Engineering?

Some remodels need a structural engineer and some don't. Here's how to tell — which scopes trigger engineering, which stay cosmetic, and what permits require.

Structural Engineering · 5 min

Do Additions Need Structural Engineering?

Building an addition almost always requires structural engineering. Here's why — foundations, framing, tie-ins to the existing structure — and what the process involves.

Structural Engineering · 5 min

What Is Equipment Anchorage?

Equipment anchorage keeps mechanical, electrical, and other equipment secured during seismic and wind events. Here's what it is, what drives it in code, and when it's required.

Structural Engineering · 5 min

What Is a Structural Inspection Report?

A structural inspection report documents a building's structural condition for due diligence, insurance, or distress concerns. Here's its scope, contents, and common uses.

Structural Engineering · 5 min

When Should Foundation Problems Be Evaluated?

Foundation problems get worse when ignored. Here are the warning signs, common causes, and how a structural engineer evaluates foundation distress.

Structural Engineering · 6 min

What Does a Structural Engineer Do That an Architect Doesn't?

A clear explanation of how structural engineers and architects divide responsibility on commercial projects, and why you need both.

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