The Granger ISS by Rotational Molding leader, Granger Plastics Company, is the only patented double wall single family storm shelter that offers industry leading features!
See the Storm Shelter features and see why it is the best!
Granger ISS Underground Tornado Shelter
When a severe weather emergency intrudes upon an area, safety features and options of leading safety products sometimes can make the difference between life and death. The Storm Shelter by Granger Plastics incorporates numerous safety features that make entrance and exit from the Storm Shelter extremely easy for all members of the family. Small children, senior citizens and even pets can enter and exit the Storm Shelter with a little help from others. The FEMA 320 exceeding aluminum door opens, closes and secures easily in seconds to provide you and your family protection from inclement weather and flying debris. The articulating handrails make entrance even easier as you step in down the molded 3 step entrance. The Granger ISS Storm shelter improves upon other Storm Shelter's design by offering a 3 step molded entrance, rather than a ladder style type of stairway. The molded in circular seating, with carpet and battery operated LED lighting system keep you and your family comfortable and at ease while waiting out the storm or tornado.
When making the investment of an Inground Storm Shelter, a person is taking a conscious step towards providing the safest environment possible for themselves and their family. For many, purchasing a Storm Shelter is an investment into their families safety for many years to come, hopefully for their entire lives. When considering the Granger ISS, Storm Shelter, they can rest assured that they are purchasing a shelter that will provide their family protection for a lifetime, but will also be a viable safety option for their children's great grandchildren, with its industry leading 500+ year life span!
The Granger ISS Storm Shelter has industry leading features that no other Stom Shelter has including:
The only Tornado Shelter with a Safe Room/Panic Room quality door!
See the NEW Granger ISS door exceed both FEMA 320 & FEMA 361 testing!
See the new generation of Granger ISS Tornado Shelter doors under go FEMA 320 & FEMA 361 testing at Texas Tech University's Wind Science & Engineering Research Center. The Granger ISS is an underground Tornado Shelter, so in theory, it only needed to be tested to FEMA 320 standards. Due to the high quality engineering staff at Granger Plastics, the Tornado Shelter door not only meets or exceed FEMA 320 standards, it also meets Above Ground Safe Room criteria by exceeding the FEMA 361 standards. The same door passed (2) tests, being impacted (3) times by a 15 pound 2 x 4 at 67 mph, then seeing an additional (3) impacts, by a 15 pound 2 x 4 at 100 mph. Even though the second test was unnecessary due to the Granger ISS Tornado Shelter being an underground unit, but went forward with the more grueling test anyway to display Granger's commitment to safety, innovation and quality. This is all just another example of why Granger Plastics produces the best tornado shelter available for single family consumers. Granger Plastics has been manufacturing Tornado Shelters for over 15 years currently. Even gaining international attention as early as 10 years ago from Internationally recognized publications such as Plastics News, USA Today and a number of news channels and media outlets across the country!
Storm Shelter Manufacturing & Assembly
Watch as the Granger ISS Storm Shelter goes thru several manufacturing, assembly and quality control stages. The Granger ISS Storm Shelter is manufactured 100% in the USA, under stringent quality assurance standards. Granger Plastics has implemented quality standards that exceed most International Standards to ensure it maintains it's integral name of quality manufacturing.
See the difference between Fiberglass and Polyethylene, as the Granger ISS Storm Shelter displays why Plastic Storm Shelters are a superior technology! The (2) product specimen under go a series of tests consisting of a 15 pound sledge hammer, a serious force impact test of dropping a heavy weight from over 20 feet in the air, and finally the Polyethylene Storm Shelter gets dropped from 20' in the sky- and suffers little to no damage!
Storm Shelter FEMA 320 Door Testing
See the Granger ISS Storm Shelter Door undergoing FEMA 320 certificication testing at Texas Tech University Wind Research & Engineering Labs.
Storm Shelter Door & Handrails
In this clip, you see how easy the door is to open, how simple the handrails are to use- and how fast, easy and secure the FEMA 320 exceeding Storm Shelter door is!Leading innovations that keep the Granger ISS on the leading edge of the Storm Shelter industry!
Storm Shelter Comparisons
Look below to see how Storm Shelters manufactured from inferior materials compare!
Protect your family with the longest lasting Storm Shelter on the market! The Granger ISS Storm Shelter will provide a safe place for your family for centuries to come! At a cost of less than 3 cents per day, see why the Storm Shelter by Granger Plastics is the best value!
Our Storm Shelters are in stock! No deposit required with a long wait! No waiting 4-6 weeks to get your unit! Order today, your unit can ship today!
