The underground tornado shelter by internationally recognized Rotational Molding leader, The Granger Plastics Company is America's leading Storm shelter innovation among safety enthusiasts and experts. Granger Plastics, a division of Granger Industries Inc. has produced Tornado Shelters for nearly 20 years now. With all of the years of dilligent reasearch and development the results have produced the industry leading, Granger ISS.
The Granger ISS Storm Shelter offers industry leading features that are not incorporated into any other single family underground storm shelter. Just a few of these features include:
Double Wall, 1/2" thick (each wall) Polymer Construction
Industry leading Triple Layer Composite Security Door
Ironclad Limited Lifetime Warranty
Tested at Texas Tech University WISE labs
Molded in Circular Seating
Molded in 3 step entrance
And so much more! Read about how and why the Granger ISS is America's leading single family underground storm shelter by clicking here!
Tornado Shelter Color Door Upgrades - Forest Green
Tornado Shelter Color Door Upgrades - Sandstone Granite
Tornado Shelter Color Door Upgrades - Solid Lt. Grey
Granger Plastics offers other colors for custom upgraded doors for Storm Shelters include a grey granite, dark grey, terra cotta and more! Please ask your dealer for pricing and details on custom color options when ordering your Tornado Shelters!
Storm Shelter Adds Bullet Resistant Panel Option to Door
The Granger Plastics Company continues to add innovation to the construction of the Granger ISS underground storm shelter by adding a bullet resistant panel upgrade option to the industry leading storm shelter door. The multi layer polymer door was tested at Texas Tech’s Wind Science & Engineering Research Center Debris Impact Test Facility, to meet or exceed FEMA 320 and FEMA 361 specifications. The Shelter door, bullet resistant panel upgrade option now being offered, will continue to add to the level of protection offered from this unique multi purpose shelter. Read the full press release here for more information on the Granger ISS industry leading underground storm shelter door bullet resistant panel upgrade options, click here.
Leading Tornado shelters on the news
Cincinnati, Ohio's Fox 19 news covers America's leading Underground Tornado Shelter, the Granger ISS and it's tremendous increase of sales during Tornado Season. Watch the video above as Fox 19 covers the Granger Plastics Tornado Shelter innovation.
Tennessee area Granger ISS dealer, Integrity Shelters is featured on a Tennessee television station, discussing their recent growth in Storm Shelter interest and business and how the Granger ISS Storm Shelter is the "Cadillac" of the single famly underground shelter industry.