Engineered Fabric Buildings
Building Benefits
Engineered for stability & strength.
Easy to expand the length if needed.
Offers superior ventilation.
Provide outstanding height, width, and sidewall clearance for optimum capacity and accessibility.
Backed by a warranty—up to 15 years on covers and 7 to 15 years on frames.
Fully customizable to meet your needs.
Use tough, tightly woven polyethylene fabric cover that stands tough against the elements and resists tearing and leakage.
Certifiable and insurable.
Grain Storage
With Pro·Tec, you can preserve grain against weather and spoilage—ensuring your investment pays when it’s time to sell.
Livestock
Strong, efficient, and adaptable, Pro·Tec buildings deliver a reliable space where livestock thrive. By combining ventilation, protection, and comfort, these structures simplify management and create the conditions for healthier, more productive herds.
Other Uses
Featuring a tough, tear-resistant polyethylene cover and high-clearance interiors, Pro-Tec buildings can be tailored for a vast range of applications, from agricultural storage and equipment housing to horse arenas and event spaces.
Benefits
High-Capacity Storage Solutions
Engineered for Efficiency
Optional Aeration & Unload Systems
Increased Ventilation
Our fabric buildings not only shield your cattle from external elements but are also designed to promote airflow on both sides and out through the peak. This ventilation process helps remove moisture, ensuring a drier bedding pack.
Year-Round Comfort
Natural Light
Improved Rate of Gain and Performance
Adaptable to Changing Market Demands
Corrosion-Resistant
Pro·Tec buildings are constructed with galvanized steel frames and tensioned fabric covers. These materials resist rust, rot, and decay, ensuring long-term durability and lower maintenance in high-moisture, high-ammonia environments.
Open Interiors
Fabric structures naturally offer the benefit of lacking interior columns. This allows for optimal utilization of the space and facilitates the easy movement of large machinery and vehicles in and out of the facility.
Grain Shield
Store over 30% more grain by adding a grain shield to your Engineered Fabric Buildings. The area in purple represents the additional storage space gained.
Arch Building Widths

40’ ARCH
Requires 2 End Wall Towers

50’ ARCH
Requires 2 End Wall Towers

60’ ARCH
Requires 4 End Wall Towers

70’ ARCH
Requires 4 End Wall Towers

80’ ARCH
Requires 4 End Wall Towers

90’ ARCH
Requires 4 End Wall Towers

100’ ARCH
Requires 4 End Wall Towers

110’ ARCH
Requires 6 End Wall Towers

130’ ARCH
Requires 6 End Wall Towers

150’ ARCH
Requires 6 End Wall Towers

180’ ARCH
Requires 8 End Wall Towers
Flexible designs that scale with you
Proven to stand up to harsh winters and summer heat
Designed for heavy-duty agricultural use
Options
Single Tube Vs Sentry
| Features | Pro-Tec Sentry Series | Pro-Tec Single Tube |
| Overview | Stronger, larger sizes, longer warranty: ideal for grain or larger structural needs | Affordable, simpler, smaller width, ideal for hay, equipment, general use. |
| Primary Use | Multi-purpose: grain, livestock, commodity storage | General Storage: hay, equipment, livestock shelter |
| Best For | Larger volume storage, code- rated installations, grain handling | Smaller footprint storage and general farm needs |
| Width | 40 up to 180 | 24’, 30’, 36’ |
| Length | Custom Length | Custom Length |
| Height | Varies with larger spans | 11’ 6” peak on standard 30’ |
| Structural Design | Engineered truss system meeting current building codes | Single-tube hoop frame with interlocking connectors |
| Wind & Snow Load Ratings | Built for higher wind & snow loads | Basic wind rating -70 mph and -26 PSF snow load |
| Capacity Example | Can store large agricultural volumes, especially with Grain Shield | Good for smaller storage needs (hay, equipment) |
- Steel post
- Piles
- Precast Concrete Blocks
- Pony Walls
- Concrete Pad
- Poured-in-Place Concrete Walls
- Precast Concrete Wall
- Heating
- Ventilation
- Electrical
- Insulation
- Flooring
- Personnel Doors
- Cargo Doors
- Door Canopies
- Metal Clad End Walls
- Shelving
- Awnings
- Fabric Covers
- Ridge Vents
- Grain Shield and Bunker Walls
- Doors
- Side Curtians
Single Tube
Sentry
Built Tough. Backed Strong.™
Industry-Leading Warranty*
Ready to invest in grain storage? Financing is available.
Through our lending partner AgriFinancial (AgFi), you can finance your new Sukup bin system with 100% financing available: covering bins, concrete, electrical, and more. With flexible payment options designed around your cash flow, getting started is easier than you think.
Pro-Tec / Engineered Fabric Buildings – FAQs
Are Pro-Tec/engineered fabric buildings considered permanent structures?
Are agricultural Pro-Tec buildings taxed differently?
Does adding concrete or end walls affect taxes?
How long do Pro-Tec buildings last?
Can Pro-Tec buildings be used for grain storage?
Can Pro-Tec buildings be expanded later?
How long does it take to build a Pro-Tec building?
Are Pro-Tec buildings more affordable than traditional buildings?
Do you install Pro-Tec buildings?
Yes, we sell and install Pro-Tec buildings.
How can I avoid tax after the building is installed?
Early planning is key. Before construction, confirm tax classification with your county, and clarify agricultural versus commercial use, and review foundation and end wall options with tax implications in mind.
Are you interested in this product? Contact Us!
A design-build firm specializing in reinforced concrete silos & industrial chimneys since 1914. Trusted nationwide for durable storage solutions.
6001 49th Street South
Muscatine, Iowa 52761
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