Engineered Fabric Buildings
Maximize the value of your building investment. Safeguard your livestock, equipment, crops, and stored assets—all while boosting your profitability.
Why Choose a Engineered Fabric Buildings?
Built to Last – Proudly manufactured in the USA
Engineered buildings are durable, adaptable, and budget-friendly, making them suitable for various needs, such as livestock shelters and grain storage. They are easy to install, relocate, and maintain, featuring natural lighting, excellent ventilation, and customizable sizes up to 200′ wide—making them a smarter choice than wood or steel.
Stronger Storage, Smarter Savings
USA-made buildings designed for stability. Ideal for storing grain, equipment, or livestock, these structures offer natural light, ventilation, and weather resistance—all at a lower cost than traditional options. Easy to set up, relocate, and fully customizable.
The Low-Maintenance Building Solution
Maximize value with low-maintenance. Save time and money with durable, engineered buildings that adapt to your needs. Perfect for storage or livestock, they feature natural lighting, strong ventilation, and open-span designs up to 180′ wide. Quick to install, built to last, and designed to maximize your investment.
Massive Storage
Features
Compared to wood or steel structures, we offer:
- Easy relocation
- Natural lighting
- Simplified installation
- Lower project costs
- Minimal maintenance
- Foundation choices
Partnership
We have a solid partnership with Sioux Steel Company
Specifications
Get the most value from your next building project with durable, high-performance structures designed to protect livestock, equipment, crops, and more—while boosting your bottom line.
Engineered for strength and efficiency, these buildings deliver:
- Natural lighting & superior ventilation for healthier, more productive spaces
- Unbeatable durability to withstand tough conditions
- Customizable designs for operations of any size
- Open-span widths up to 180 ft (and any length) for maximum flexibility
- Proudly made in the USA with expert craftsmanship
Whether you need storage, livestock housing, or large-scale agricultural solutions, these low-maintenance buildings are built to last—and built to save you money.
Building Models
| Single Tube Widths | Sentry Series Widths |
| 24’ | 40’ |
| 30’ | 50’ |
| 36’ | 60’ |
| 70’ | |
| 80’ | |
| 90’ | |
| 100’ | |
| 110’ | |
| 130’ | |
| 150’ | |
| 180’ |
- Saves you money by protecting your investments.
- Engineered for stability & strength.
- Offers superior ventilation.
- Unmatched natural lighting.
- Customized options available.
- Certifiable and insurable.
- Easy to expand the length when needed.
- Provide outstanding height, width and sidewall clearance for optimum capacity and accessibility.
- Use tough, tightly woven polyethylene fabric cover that stands tough against the elements and resists tearing and leakage.
- Numerous dealers throughout the U.S. and internationally.
- Backed by a warranty as specified in the building owner’s manual.
- Grain Storage
- Livestock Environments
- Hay, Commodity and Equipment Storage
- Other applications
Many options are available to customize your Pro·Tec Building. With such a wide range of options there are countless possibilities! You can choose features that fit your needs so you get the most value for your building investment.
- Awnings: Awnings provide protection from the elements.
- Fabric Covers: Pro·Tec Buildings use tough, tightly woven polyethylene fabric cover that stands tough against the elements and resists tearing and leakage.
- Grain Shield & Bunker Walls: Our Sentry Series Buildings fit your needs by offering large capacity economical corn storage.
- Ridge Vents: Ridge vents allow for more air flow and a wider air pattern.
- Doors: Our roll up doors shield your Pro·Tec building’s interior space against energy loss.
- Side Curtain: Side curtains allow you to control the environment inside your building.
Building Uses
Recreational
- Sporting Events
- Football Field Covers
- Multipurpose Spaces
Industrial
- Aircraft Hangers
- Manufacturing
- Warehousing
- Machinery Storage & Repair
- Sand & Salt Storage
Agriculture
- Grain Storage
- Livestock Production
- Hay Storage
- Horse / Ag Shows
- Fertilizer Storage
- Equipment Storage / Maintenance
Household/Private
- Garages
- Boat & RV Storage
- Vehicle Maintenance
- Workspace or Workshop
What Building is Right for you?
| Features | Pro-Tec Sentry Series | Pro-Tec Single Tube |
| Overview | Stronger, engineered. Larger sizes, longer warranty: ideal for grain or larger structural needs | Affordable, simpler, smaller width, shorter structural warranty, 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= Customizable | 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) |
Pro-Tec Sentry
Pro-tec Single Tube
Customers Who Rely on Us
Let experts guide you on how to start your project!
If you’re unsure about the size of the steel bin you need or if special equipment is required, contact our experts for guidance and budget-friendly recommendations.
Expert 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
Location & Directions
Phone
(563) 263-4733
sales & services
Silos, Chimneys and Inspections
sales@hoffmanninc.com
563.263.4733 Phone
Steel Stacks, Fabrication and Industrial Services
sales@silverhawkfab.com
563.263.4733 Phone
learn more
solutions & services
