America's leading
tornado shelter
Does your family even have a safe place to take shelter?
Where will your family go?
Severe weather is notoriously unpredictable. We have elaborate warning systems, as well as extensive radio and television coverage of approaching storms. Still, hundreds are killed each year from tornadoes, freak storms and other disasters, with thousands more injured. Property loss is routinely in the billions of dollars. The best and smartest thing you can do for yourself and your family is to be prepared.
500+ year Lifespan
Rotationally Molded Polyetheylene construction offers the longest lasting usable lifespan of ANY Tornado Shelter on the market!
Innovative design
The cutting edge, patented reverse taper design of the Granger ISS Tornado Shelter allows it to be installed virtually anywhere!
LIFETIME warranty
The Granger ISS Tornado Shelter offers a lifetime warranty not to crack, rust, rot or float out of the ground like less capable underground shelters
Industry leading Safety Features
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Articulating Handrails
Handrail extends and locks into place, making entry convenient for older or less mobile persons.
Exceeds FEMA 320
Multi-layer door exceeds both FEMA 320 and FEMA 361 debris impact standards.
Heavy Duty three-point locking door
Heavy duty, Three-point locking security door that exceeds FEMA 320 specifications.
safe & Attractive
Unlike most other competing Tornado Shelters in the market, the Granger ISS offers safety and security while minimizing the industrial, typically unsightly look of tornado shelters in general by offering the doors and the vents in different colors in attempt to coordinate with your home or landscaping.
Easiest installation of any
tornado shelter on the market!
Because of the patented, innovative reverse taper design of the Granger ISS In-ground Safety Shelter, the installation is wildly simple in compartison to most other single family shelters, as the Granger ISS does not require an additional anchoring systems, as the reverse taper design helps hold the units in the ground. While other’s cookie cutter knock off designs float out of the ground, Granger’s commitment to quality and excellence starts with internationally recognized design and engineering features.
Granger ISS Installation
The patented reverse taper design allows for the Granger ISS Underground Shelter to be installed with the requirements of an additional anchoring system. This drastically reduces the total cost of installation and ownership. Learn more about having a Tornado Shelter installed in as little as 3 to 4 hours once the project starts in most cases!
Granger ISS Features
Industry leading features from an internationally recognized manufacturing leader including a molded 3 step entrance, articulating handrails, molded in seating, 3 point latching system, dual gas assisted shocks, multi-layer rotationally molded door and so much more! Learn about the Granger ISS’ features by clicking below!
FEMA 320 & FEMA 361 Impact Tests
The Granger ISS features a multi-layer, rotationally molded door that exceeds FEMA 320 and FEMA 361 debris impact standards. Offering a lifetime warranty to replace your door if it is damaged in a verifiable storm or tornado, Granger will work with your homeowners insurance to have it replaced at no charge to the homeowner!
Granger ISS on The Weather Channel
There’s no name or entity more synonymous with Mother Nature and the weather, than The Weather Channel. Recognizing Granger Plastics Company’s commitment to keeping families safe from inclement weather, The Granger ISS In-ground Safety Shelter was prominently features on the Weather Channel!
Unleash yourself, relax yourself
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Double Wall Foam Filled Construction
The Granger ISS is one of the ONLY double wall tornado shelters in the industry. To take safety and protection of your family and loved one's a step further, the body of the unit is foam filled for rigidity and structure as well as to minimize or even eliminate condensation issues!
Exceeds FEMA Standards for 6 Adults
Molded in seating allows you to wait out the inclement weather with your family and loved ones in safety and security.
Multiple Sources of Ventilation
Featuring (2) sources of air flow thru the unit, the Granger ISS features a rotationally molded vent stack.
limited lifetime warranty
The Granger ISS is the only single family tornado shelter on the planet that offers a limited lifetime warranty on the body of the unit against cracking, rusting, rotting, rusting or floating up out of the ground! The door is protected by a lifetime warranty as well. If you door is damaged in a verifiable tornado outbreak, Granger will work with your homeowner’s insurance to get your door replaced at no cost for the replacement door. That’s peace of mind, providing peace of mind for decades to come!
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Office
1600 MADE Industrial
Middletown, OH 45044
Open Hours
8:00 am–5:00 pm
Monday thru Friday
Give Us a Call
(513) 424-1955
(866) 510-9701