Specialty and Versatility Since 1993

Our goal then and now is to provide quality projects on time.

Welcome to S3PC

Where We Structure Your Visions

We welcome the opportunity to provide you with efficient structural solutions to whatever challenges you may face.  We frequently work with Architects, Owners, and even directly with Contractors, collaborating and identifying major solutions early in the design process to establish reliable expectations for you.  S3PC is here to help your project achieve a safe and reliable structure meeting your vision for function and aesthetics, as well as expected demands no matter how extreme (e.g., hurricanes, tsunamis, tornadoes, earthquakes, explosions, etc.).  

S3PC has the specialized experience and versatility to provide structural solutions to any difficult problem, and we can respond efficiently to simple requirements, too.  Please call, email, or visit.

+1 (402) 455-7698

Let us Help You Get Started

Structural solutions can be complex and time-consuming, but we want to help you understand what is involved with your project.  Feel free to call, email, or visit to discuss your project, and we will be happy to provide a proposal in response to your needs and vision.

Our Specialization

Our versatile experience covers a variety of specialized structural engineering, some of which are listed below.

Building Evaluations and Retrofits

Repurposing, seismic and hurricane upgrades, historical renovations, and major alterations to existing structures (including use of FRP)

Construction Engineering

Shoring, temporary bracing, formwork design

High-Seismic and Hurricane Design and Detailing

Both building structural and non-structural components

Industrial Engineering (FDM)

Conveyors, racking

Protection Engineering

Blast design, progressive collapse prevention

Storm Shelter Engineering

ICC 500 and FEMA P-361 compliance

What Our Clients Say

The best compliments we receive are in assisting clients repeatedly over years.  We appreciate the relationships we build in this great profession!

RichOnken
Alesia Architecture has a choice in who we work with for our engineering partners and we are proud to use Shaffer Stevens & Schaap, PC as our primary structural engineering partners. Shaffer Stevens & Schaap provides us a highly unique mixture of thorough design documents, ability to deal with highly complex projects when needed, and address short notice needs, turning one recent urgent need around the same day. We look forward to many more decades working together.
Rich Onken
President, Alesia Architecture
Donn & Jeff offer unmatched services. Their team is always open to suggestions and are willing to take on projects of varying complexity. Their availability to meet onsite to review and establish quick drawings helps us reduce costs. Happy to have Shaffer & Stevens on our team.
M&M Steel
Management
We couldn't wait for Brad to join Shaffer & Stevens so we could have him work on our revolutionary project because we knew he was the right one for the structural design.
Shawn Kolterman
Kehm Contractors, Inc.

Select Signature Projects

Click the link on the right for a small sampling of the versatility of our projects.

Our Expert Team

S3PC is comprised of professional engineers who excel in the field of structural engineering and can meet any challenge.

Donn R. Shaffer, PE

President

Jeffrey W. Stevens, PE

Vice President

Brad A. Schaap, PE, SE

Vice President

Marta Janousek

Structural Specialist

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