Signature Series

Unique Metal Pole Building Projects and Post Frame National Award-Winning Buildings

Signature Series: You Won't See These Custom Pole Buildings Anywhere Else

Our Signature Series collection includes custom pole barn projects with unique architectural design qualities. Luxury pole barn add-ons turn a basic pole building into a show-stopping structure. At Greiner Buildings, our team will help you design the perfect custom pole building to suit all of your daily needs and find the best layout on your property for ultimate usage and grade. Our in-house construction crews and project managers will construct a well-built, one-of-a-kind structure to make your dreams a reality.

Pole barns are no longer just a rectangle box sitting on the back of your property. Unique pole barn designs work perfectly as a modern pole barn house, custom insulated shop, or as the face of your business. Look through our collections to get inspired and find the best steel pole building for you. Let Greiner Buildings start the construction process today with a free quote and 2D/3D drawings to see what your building will look like sitting on your property.

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Why is Greiner Buildings the best option for your custom pole barn project?

Whether you are in the market for a modern pole barn house or a unique, custom pole barn for your farming equipment and crews, you can rely on Greiner Buildings to deliver a structure that is one-of-a-kind and built to last. We do that through:

1. High quality materials: The best buildings start with the best materials. From the foundation to the trusses to the insulation, Greiner Buildings utilizes only the highest quality materials to ensure your building is strong, reliable, and functional for years to come.

2. Custom designs: Our CAD designers will bring your vision to life. 2D blueprints and 3D models help to visualize the modern pole barn features you imagined and make sure there isn’t a detail that’s overlooked before construction starts.

3. Expert Crews: The construction may not be as glamorous as the finished product, but it is the most important part of the process in our opinion. The build of your custom pole barn isn’t something that can be left up to chance. That’s why we employ and train our own in-house crews.

Give us a call at 888-466-4139 to get started today!

Signature Series Projects

Browse our gallery of recent signature series projects for ideas and inspiration.

What do our customers say?

“Excellent reviews. Good to work with. Good group of guys. Always picked up the mess at the end of the day.” 


- Jeff I., Washington, IA

"They kept me updated on the progress the entire time and went out of their way to make sure I was satisfied before they wrapped things up. Thanks, love the new building!”

- Michael B., Nevada, IA

“Best price and great salesmen. Very good work crew they were very knowledgeable and did a great job on our building."

– David J., Brimfield, IL

"Thanks for everything. I wish all our other contractors were as responsive, informative and did what they said they would do as you are!"

– Dan S. - Pleasant Hill, IA

"I wanted to take a moment to recognize the hardwork and dedication of Jason [foreman] these past few weeks. I know he's thrown curve balls, what feels daily. Yet each day he's come in with a solution mindset and positive attitude that is greatly appreciated although we might not say that enough. I admire his flexibility and resilience to our many asks and just wanted to let you know how truly impressed and grateful we are."

– Anna J. - Turner Construction Company, West Des Moines, IA

The Greiner Difference

Quick Quotes

Because your time is important.

Better Materials

Because you want a building that lasts.

Because craftsmanship matters.

Complete Building Services

Because you don't need any stress.

Iowa and Illinois Accredited NFBA Builders. Washington, Clive, Kewanee, Quad Cities, Muscatine, Burlington, Des Moines, Ankeny, Winterset, Cedar Rapids, Iowa City, Solon, North Liberty, Mount Pleasant, Fairfield, Pella, Tipton, Williamsburg, Newton, Keota, Sigourney, Hiawatha, Marion, Columbus Junction, Wapello, Oskaloosa, Knoxville, Marshalltown, Altoona, Urbandale, West Des Moines, Bettendorf, Davenport, Ames, Kalona, Riverside, West Liberty, Princeton, Geneseo, Galesburg, LaSalle, Dixon, Rock Island, Moline, Wyoming and Sterling. Iowa and Illinois Quality Built Post Frame Pole Barns.