Sean Lanier, PE, MASCE
About Us:
Hello, I'm Sean Lanier, PE, creator and owner of I'd like to personally thank you for your interest in

I created out of a frustration with the unavailability of design calculation references that were easily accessible, always available, written in layman's terms and covered all areas of my practice. As the practice of civil engineering continues to expand and grow, civil engineers are continually being tasked with the design of a broad range of projects covering multiple areas of civil engineering. It can become tedious and cumbersome to keep and maintain an up-to-date design calculation reference library and to stay abreast of the latest code changes. Through I have created a place where a civil engineer can go to find up-to-date design calculations referencing the latest codes and standards. It is easily accessible on the internet; available at any time, day or night and uses technology to make the difficult process of performing design calculations simple, quick and easy. At design aids are built into the calculations, the design processes are broken down step-by-step, and the calculations take the form of an online application. The advantage is that what previously might have taken hours or days to accomplish before, can now be done in minutes. No more time wasted trying to find reference material and then attempting to work complex design calculations by hand. Now you can begin the design, open up the design aid, if needed, and go through the step-by-step calculations to arrive at the finished design. If you already have a standard design, you can modify it and validate it in minutes.

I'd like to thank you again for your interest in If you have a question or would like to request the addition of a calculation or reference, please contact us thru our message form or email us at

Our Mission:

The mission of is to be a complete civil and structural engineering design calculation reference site. serves the engineered construction industry, and is specifically dedicated to meeting the design needs of civil and structural engineering professionals in this industry.  Our users turn to us for the calculations and references they use in their everyday civil and structural engineering design work. is different from other industry websites because our content does not focus on industry events, news, business advice or "how to" articles.  Instead, our content focuses on providing the design calculation applications, software, design aids and reference materials that our users need to perform their professional day-to-day work.


At we are completely devoted to our mission to be a complete civil and structural engineering design calculation reference site. In keeping with this mission, is continually seeking corporate partners to add useful reference information to our website.  If your business manufactures or distributes construction products or building materials that would be specified by our users, please contact us.  We will be happy to place your product specifications, technical bulletins and product specific design aids on our website for the benefit of our users.


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