About Integrated Design

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Integrated Design is a U.S.-based CAD firm headquartered in Tulsa, Oklahoma that provides detailed, code-compliant, 3-D plans that are install ready. Founded in 2006 by Shawn and Rachel Simmons, Integrated Design is a full-time, onsite staff of expert designers who are always accessible to their clients, as well as the installers on-site. No aspect of the job is ever outsourced. The engineers at Integrated are always available to jump on the phone, open a GoToMeeting video conference, and visually walk clients through the plans at any point in the project. Learning the tools of the trade from his father, a licensed and registered mechanical engineer for over 60 years, Shawn understands the areas on a job where problems can arise. His team works to troubleshoot and find red flags, even in areas outside their project scope.

With Integrated Design, you can be confident that the drawings are always right.

What We Do

With Integrated Design, it’s about being a partner, not just offering a service. The objective for Integrated is to walk their clients through the entire project and ensure each aspect goes as smoothly as possible, which can save their clients time while increasing their profit margins.

Working on projects all across the country, the team at Integrated also make sure all the designs meet the state and national codes in plumbing, electrical, and ductwork. Along with their CAD expertise, they also understand the needs of the installers and can problem solve issues before they happen.

With Integrated Design, you can be confident that the drawings are always right.

BIM Coordination & Management

Our virtual trade construction modeling and clash detection management will give you accurate, comprehensive, 3-D models that will save you time, manpower, and costly mistakes, while helping you get the job done right.

Robotic Field

Our robotic layout technology provides the layout of hanger and core drill locations with accuracy down to 1/16th of an inch, all within hours instead of days.

Shop & Fabrication Drawings

Our MEP shop and fabrication drawings have the technology of BIM intelligent data behind them, which provides time-saving details that go far beyond standard shop drawings.

Shawn Simmons

Dad was a mechanical engineer for large commercial buildings. He did it all – heating and air, electrical, plumbing, fire protection. As a kid, I grew up going to his office and drawing. By middle school, I was on his CAD program drawing duct work. By the time I reached high school, I had taught myself programming on the fly. I knew how to manipulate the program to get it to do exactly what I wanted. That’s where the idea of Integrated Design first started, but it would be many more years before Rachael and I would launch our own business. Those years were spent working in the engineering department for the Department of Corrections, working for the largest engineering firm in Tallahassee, Florida, and eventually moving to Oklahoma to work with and manage engineering departments here. Now, with Integrated Design, me and my team work to create building plans the contractors and installers don’t have to question. All they have to do is follow them. That is our objective every time a job is complete. It’s something I learned from my Dad.

Rachael Simmons

As a mom of three beautiful daughters, I love that my job allows me to support my husband, handle the office work, keep the bills paid and the “i”s dotted on the business side, all while being a full-time Mom, too. When we started Integrated Design, it was Shawn’s passion to give his best every single day to his clients. And he’s good at it. By taking care of the human resource work, the office work, and keeping the stress level down for him, I can free Shawn to give the work his total focus. And, in the long run, it’s allowed us to create a company with a good foundation and a solid future. We make a great team!

Sebastian Viloria

Jobs can get hectic and tense. Without good communication, misunderstandings can happen between the contractors, engineers, and architects. That’s where I come in. I stay clear-headed, solution focused, and keep everyone informed and working together. Ultimately, what I do is about problem solving. Even in the most complicated jobs, I get a great deal of satisfaction by handling what may seem like an impossible problem, finding the issue, designing a solution, finishing the project on time, and hearing the client’s appreciation for a job well done.

Bao Nguyen

To find the right solution, you have to view problems from different angles. I’m an out of the box thinker. Using my skills with the software, I focus on the details to find that solution that works best for the problem at hand. My main focus is to do the best job, on time, and always with accuracy.

Tyler Kirkpatrick

I love putting all the pieces of the puzzle together. It takes an extreme amount of focus, attention to detail, and a refusal to never give up until the picture comes together. And I love it. When the finished product comes out, everything fits together, the client is completely satisfied, and I’m meeting my own high standards for perfection. Afterwards, I love to sit back and say, “Hey, I drew that. I detailed that out.” It’s about excellence and I’m always striving to be the best at what I do.

John Reynolds

Growing up with a father in the heating and air business, I understand the often hidden issues that can arise on a job. As a previous installer myself, doing everything from duct work to plumbing to electrical, I know what workers need when they show up on the job. I work to make the construction process easier for the guys in the field. Together, my team and I put our time and effort into going through all the drawings, making sure nothing clashes, making certain everything works together, and handing over plans so the guys can install it without any problems.

Anthony Ruepert