Tornado Shelter Features

Industry leading innovations and features that offer near absolute protection!

The Granger ISS Tornado Shelter stands as a testament to
cutting-edge safety and peace of mind. Designed with the highest standards,
this underground tornado shelter ensures the utmost protection for you and your loved ones during extreme weather conditions.

The Granger ISS Shelter presents a range of advanced innovations and features unique to the tornado and storm shelter industry. Boasting an industry-leading lifespan, exceptional durability, and a comprehensive warranty, it guarantees near-total protection for your family against tornadoes, storms, and adverse weather conditions.

Granger ISS Tornado Storm Shelter

Superior Construction

The Granger ISS Tornado Shelter stands out as a premier
choice in storm protection due to its unparalleled construction quality and
advanced safety features. Engineered with the highest standards in mind, the
Granger ISS provides a robust and reliable solution for safeguarding
individuals and families during severe weather events. This shelter is designed
not only to meet but to exceed FEMA and ICC 500 standards, which are the
benchmarks for tornado and storm shelters. Such rigorous adherence to safety regulations
ensures occupants are provided with the utmost protection.

The Granger ISS is rotationally molded from
Polyethylene, a durable material. Polyethylene is known for its resistance to
impact, chemicals, and UV damage, making it an ideal choice for various
applications including industrial storage solutions, agricultural tanks,
and outdoor furniture. The body of the ISS consists of double wall
construction, with a ½ inch wall on both the inside and outside. This double
wall ensures that the shelter remains robust and structurally sound even
under heavy use and extreme conditions.

Foam Filled Tornado Shelter Body

Reverse Taper Design

The design and shape of the ISS are among its most distinctive features, showcasing a reverse taper that is wider at the bottom than at the top. This unique configuration permits the unit to be installed directly into the ground without requiring any extra anchoring systems. As a result, there is no need for messy concrete or complicated installation, making it the easiest shelter to install currently available.

Granger ISS Tornado Shelter Installation
Corporate Customer installing Granger ISS

Easiest Installation Available

 A standard installation of the Granger ISS generally takes
four hours or less. The procedure is straightforward: dig a hole, position the
unit, make sure the shelter is level on all sides and backfill with the soil that was removed. This shelter can be installed outside existing homes, in new constructions, or retrofitted into designated areas.

Tornado Shelter Install

Triple Panel, FEMA 320 and FEMA 361 exceeding door

In any underground shelter, the door is paramount, providing
the essential protection against tornadoes. To guarantee safety, doors should
adhere to the FEMA 320 or FEMA 361 standards, which evaluate their strength
against flying debris at wind speeds of 250 MPH. The door design of the ISS is
particularly noteworthy, featuring a double wall polyethylene exterior panel, a double wall polyethylene interior panel and a polycarbonate layer secured in between the double wall polyethylene panels for maximum protection.  

The door of the Granger ISS features a limited lifetime warranty.  If your door is damaged in a verifiable tornado, Granger will work with the homeowner to get the door replaced at no charge for the door.  

The door of the Granger ISS was successfully tested to meet or exceed FEMA 320 and FEMA 361 standards at Texas Tech University’s Wind lab.  See the video for the Granger ISS door test below.  

Dual Gas Assisted Shock System

Most any door that has been proven to meet or exceed FEMA 320 or FEMA 361 debris impact standards will be heavy, including the polyethylene door of the ISS. To make entry and exit easier and safer, each Granger ISS door includes two gas-assisted shocks that make opening the door much easier than most all other shelters on the market.  

Granger ISS Tornado Storm Shelter shocks
(1) of the gas assisted shocks on the Granger ISS

Triple Locking System

In compliance with FEMA and ICC 500 specifications, The Granger ISS door offers a 3 point locking system to ensure the highest level of safety and protection.  The 3 point latching system is easy to use and capable of being secured by most occupants of the shelter.  

Shelter door handrails 3 point locking system
Granger ISS Articulating Handrails and 3 point locking system

Articulating Handrails

Every Granger ISS has articulating handrails that can be used for safe and easy entry into the unit.  Once everyone is in the unit, simply pull the pin and lower each of the handrails to their resting position.  Close the door and lock all (3) of the locks and wait the Tornado or storm out in near absolute protection!    

Easy 3 Step Entrance

The Granger ISS features a durable, 3 step entrance down to the seating of the underground tornado shelter.  The vertical entry is easy for most people and does not impeded on valuable interior space.  During a disaster such as a tornado, timing is paramount for safety and entry into the Granger ISS only takes seconds!  

3 Step Tornado Shelter Entry

LED Light

Each Granger ISS is equipped with LED lighting. Upon entry, simply touch the light to illuminate the interior when the door is closed. Each unit includes one LED light; however, additional lighting can be installed if so desired.

Molded In Seating

The Granger ISS exceeds FEMA requirements for 6 adults though several more can fit in an emergency. Molded in circular seating allows occupants to sit comfortably with seating taking up as little space in the interior of the unit as possible.  Taller occupants will be able to sit straight with plenty of headroom, or stretch their legs by standing in the entry area.

InsideofShelter

Color Doors

Minimize the look of your storm shelter or customize the door to blend in with your home. The unique feature of a colored door and vent allow the Granger ISS to look the way you want it to. Choose green to blend in with grass and landscaping, gray to blend in with a concrete floor or maybe even match your home.  

Guaranteed Not To Float

Unlike less capable designs, the Granger ISS offers a limited lifetime warranty not to float out of the ground!  Granger works with a variety of qualified installers for those who wish to subcontract out the installation themselves.  Any shelter installed by an approved installer is guaranteed not to float!  

Limited Lifetime Warranty

The Granger ISS is warrantied through the lifetime of the original owner for cracking, leaking, rotting, rusting or any type of material deterioration of the body of the unit. This warranty also covers any other material or manufacturers defects.

Granger ISS Tornado Shelter Gallery

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$500 REWARD
For the Names & Addresses of these (2) unsavory individuals who feel that it is far more productive in life to be a petty thief than simply go be a productive citizen. Theft occurred on Saturday, April 9th around 5:12pm on MADE Industrial Drive in Middletown, Ohio. If you have any information that could assist in the arrest and prosecution of these 2 clowns, please call Granger Plastics Company at (513) 424 1955.

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An installed Granger ISS Tornado Shelter with a special 'Crimson Tide' colored door... installed in Alabama imagine that!! It's possible to get your door and vent molded in your teams favorite colors!! Inquire today!! #TornadoShelters #stormshelters #UndergroundShelters #Alabama

An installed Granger ISS Tornado Shelter with a special `Crimson Tide` colored door... installed in Alabama imagine that!! It`s possible to get your door and vent molded in your teams favorite colors!! Inquire today!! #TornadoShelters #stormshelters #UndergroundShelters #Alabama ...

5 0 instagram icon
An installed Granger ISS Tornado Shelter with a special 'Crimson Tide' colored door... installed in Alabama imagine that!! It's possible to get your door and vent molded in your teams favorite colors!! Inquire today!! #TornadoShelters #stormshelters #UndergroundShelters #Alabama

An installed Granger ISS Tornado Shelter with a special `Crimson Tide` colored door... installed in Alabama imagine that!! It`s possible to get your door and vent molded in your teams favorite colors!! Inquire today!! #TornadoShelters #stormshelters #UndergroundShelters #Alabama ...

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A very special Happy Birthday to our GM's daughter, who has been known to dress up like Dorothy from Wizard of OZ at some of the Tradeshows!! She also keeps us on our toes when it comes to Baseball!  Happy Birthday EJ! #FutureRotomolder?  #FuturePlasticsExec  #FutureMLBTeamOwner?

A very special Happy Birthday to our GM`s daughter, who has been known to dress up like Dorothy from Wizard of OZ at some of the Tradeshows!! She also keeps us on our toes when it comes to Baseball! Happy Birthday EJ! #FutureRotomolder? #FuturePlasticsExec #FutureMLBTeamOwner? ...

3 0 instagram icon
Families taking a look at the Granger ISS Tornado Shelter at the Indiana State Fair!! #TornadoShelters #StormShelters #UndergroundShelters #GrangerISS #Indiana #StateFair #IndianaStateFair #GrangerPlastics

Families taking a look at the Granger ISS Tornado Shelter at the Indiana State Fair!! #TornadoShelters #StormShelters #UndergroundShelters #GrangerISS #Indiana #StateFair #IndianaStateFair #GrangerPlastics ...

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The Granger ISS Tornado Shelter offers a number of attractive door and vent color options.  Just another example of how the Granger ISS Storm Shelter stands out from other competing shelters- function, features, lifespan, durability and even aesthetics!  #GrangerISS #GrangerIngroundSafetyShelter #TornadoShelters #StormShelters #UndergroundShelters #GrangerPlastics #PlasticStormShelter #PlasticStormShelterThatLastsForever

The Granger ISS Tornado Shelter offers a number of attractive door and vent color options. Just another example of how the Granger ISS Storm Shelter stands out from other competing shelters- function, features, lifespan, durability and even aesthetics! #GrangerISS #GrangerIngroundSafetyShelter #TornadoShelters #StormShelters #UndergroundShelters #GrangerPlastics #PlasticStormShelter #PlasticStormShelterThatLastsForever ...

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Remember that time the Granger ISS was featured on Fox 19?  #TornadoShelters #StormShelters #Fox19 #Cincinnati #Ohio #NewsChannel #Weather #Tornado #GrangerISS #SafetyShelters #UndergroundShelters #GrangerPlastics #RotationalMolding #Rotomoulding

Remember that time the Granger ISS was featured on Fox 19? #TornadoShelters #StormShelters #Fox19 #Cincinnati #Ohio #NewsChannel #Weather #Tornado #GrangerISS #SafetyShelters #UndergroundShelters #GrangerPlastics #RotationalMolding #Rotomoulding ...

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Granger Plastics Company                     1600 MADE Industrial Dr. 
Middletown, OH 45044

Phone: (513) 424-1955

Email: sales@grangerplastics.com

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Granger ISS Tornado Shelter Information

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