Most all severe weather experts agree, underground is the safest place to protect your family from a severe storm, tornado or other inclement weather situations. Provide near absolute tornado protection for your family by providing an underground shelter for your family!
As an internationally recognized name in the field of Rotational Molding, Granger Plastics is a proven industry leader with multiple decades of industry leading underground shelter experience while providing a wide variety of solutions for a plethora of industries including Aerospace, Defense, Piping, Waste Management and virtually everything in between!
Have a question? Looking for more information? Just curious as to how fast your family can have one installed? Use the form below to send us an email. Typically, we will be back to you within 24 business hours. Have an urgent question? Look below the contact form for a phone number and additional contact information!
Provide your family with near absolute tornado, storm and inclement weather protection with an underground shelter.
Meets or Exceeds all applicable FEMA 320 & ICC 500 specifications.Scientifically proven 1,000+ year lifespan, the Granger ISS is the ONLY storm shelter that can offer near absolute protection for generations to come! Take your protection investment to the next level with a
Granger ISS!
The patented reverse taper design of the Granger ISS Underground Shelter allows for simple, easy installation virtually anywhere with no anchoring system required. Most installs complete in or around 4 hours or less!
Easiest Underground Shelter install!