Pro·Tec has improved some existing processes and incorporated many new ideas to create the “Sentry Series” building line. Building highlights include:

• using all high strength steel
• “cross-braced” frames
• rolled chords
• universal wall attachments
• grain storage capabilities
• conveyor capabilities
• simplified construction
• and many more, that make the “Sentry Series” a state of the art investment for any application.

Click here to view the Sentry Series Buildings brochure.

If you would like more information the different sizes and options available, plesae feel free to Contact Us or click on the image.


Single Tub Buildings are ideal for  livestock shelters, grain storage, hay storage, etc. Buildings are available in widths of
24', 30', and 36'.  Post spacing is 6' on center for 24' and 30' and 5' on center for 36' single arch models. 

Available options include:

• Roll Up Doors
• Track Doors
• Solid End Enclosures
• Ridge Vents
• Side Curtains

Click here to view a brochure on Single Tube Buildings.

For more information, you can contact us or click on the image.

The Gable Style Building has the same innovative traits that have kept Sioux Steel on the cutting edge for over 90 years. Gable Buildings are available in widths up to 155'.

Common components promote economy in construction and the powder-coated finish gives lasting durability.  Hot dipped galvanizing is optional.

Multiple leg spacing offers different loading capabilities and gives you a versatile structure to use as a riding arena, along with various commercial or industrial applications.

Click here to view the Gable Buildings brochure

If you have any questions, feel free to contact us. Or click on the image for more information.