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Simpson Strong-Tie Reinforces Software Solutions with Acquisition of Calculated Structured Designs Inc.

General News
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Simpson Strong-Tie, the leader in engineered structural connectors and building solutions, announced that it has acquired Canada-based Calculated Structured Designs (CSD®), a software development company providing solutions for the engineered wood, engineering, design, and building industries for North America, Australia, and the United Kingdom. 

CSD is committed to creating state-of-the-art software solutions for architects, designers, engineers, and builders, selling and distributing its iStruct® products across the United States, Canada, Australia, and the United Kingdom. 

“This acquisition helps Simpson Strong-Tie better serve our customers using EWP products, as well as steel and dimensional lumber,” said Noah Daniels, Simpson Strong-Tie senior vice president market development – digital solutions. “CSD has been a longtime partner of Simpson Strong-Tie, with their iStruct solution perfectly combining 3D layout, member design, and material reporting. We’re pleased to welcome CSD as the newest member of the Simpson Strong-Tie family and look forward to this acquisition benefiting our customers in myriad ways.” 

“Simpson Strong-Tie is an incredible company and great fit for the CSD team,” said Sean Nason, president and CEO, Calculated Structured Designs Inc. “The past 15 years for CSD has been one spectacular ride. I am very proud of everyone and humbled to have worked and grown friendships with this amazing group. I know the combined Simpson Strong-Tie and CSD team will take EWP software to even higher levels.”

About Simpson Strong-Tie Company Inc.

Simpson Strong-Tie is the world leader in structural solutions — products and technology that help people design and build safer, stronger homes, buildings, and communities. As a pioneer in the building industry, we have an unmatched passion for problem solving through skillful engineering and thoughtful innovation. Our structural systems research and rigorous testing enable us to design code-listed, value-engineered solutions for a multitude of applications in wood, steel, and concrete structures. Our dedication to pursuing ever-better construction products and technology and to surrounding our customers with exceptional service and support has been core to our mission since 1956. For more information, visit and follow us on FacebookTwitterYouTube and LinkedIn.


Shelby Lentz – Director, Marketing Communications – – (925) 560-9068

Source: Simpson Strong-Tie Company, Inc.