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Product Info

Tunnel Shutters
Tunnel Shutters

Diversified Tunnel Shutters

Tunnel Shutters® are the optimal solution for allowing smooth laminar airflow into the house with no door turbulence—aiding with ventilation while also preventing air leaking for significant energy savings.


The Tunnel Shutters’ maintenance-free rack and pinion drive system eliminates the need for cord or cable adjustments, and the innovative design allows the shutters to open to the outside–eliminating operating issues common with curtain and tunnel door systems.


Broilers, Breeders, Turkey, Hog, DairyGreenhouse, Ventilation, Heating, Diversified Agriculture

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  • 2-year warranty
  • Rack and pinion drive system
  • Adjustable airflow angles for directing cooled air
  • 2-inch thick galvanized steel shutter with foam-filled expanded polystyrene



  • Design allows for smooth laminar airflow and improved speeds, which minimizes static pressure loss and improves fan efficiency
  • 2-inch thick coated, galvanized steel shutters provide R9 insulation value for reduced energy costs
  • Maintenance-free rack and pinion drive system eliminates need to adjust control cords
  • Design uses negative air pressure to create a tight seal and reduce leaks
  • Shutters do no protrude into the house and will not interfere with operations
  • Simple, cost-effective installation saves money

Technical Specifications

Width4 foot modular units
HeightAvailable in 4 foot, 5 foot and 6 foot units; can be stacked for multi-level house installation
LengthUnits connect to provide any desired length
Installation areasMountable on outer walls, within cooling cell dog houses, indoors or outdoors
Special considerationsU-joints available for over door or over equipment installation


Tunnel Shutters Brochure

Tunnel Shutters installation instructions (PDF)

Tunnel Shutters Spare Parts

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