Underground Safe & Sound
America's leading Underground Tornado Shelter.

Provide your family industry leading near absolute Tornado and Storm protection.
Innovative features, industry leading 1,000+ year durable lifespan, custom color door options and more!
The only underground storm shelter your family will ever need to purchase!

When the weather warnings start, will your family have a safe place and a plan?


Lifetime warranty

An industry leading lifespan with an industry leading warranty allows your family the peace of mind, knowing they have near absolute tornado protection.

Exceeds FEMA & ICC 500 STANDARDS

The meticulously designed underground storm shelter offers a number of industry leading features that meet or exceed applicable FEMA & ICC 500 standards and specifications.

1,000+ year lifespan

Due to the polymer construction and the stress free Rotatinoal Molding process, the Granger ISS Underground Storm Shelter can provide an industry leading lifespan of 1,000+ years. Protect your family for generations to come.

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Double Wall, Foam Filled construction

Rotationally molded from Polyethylene, one of the most durable materials on the planet. The underground shelter body features a non VOC foam adding superior strength, rigidity and condensation control.

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Multi-layer Composite Door

Exceeds FEMA 320 and FEMA 361 debri impact standards for both underground and above ground tornado shelters. The door of the Granger ISS Underground Shelter is covered by a separate lifetime door warranty.

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Safe, Tranquil interior

Exceeds FEMA space requirements for 6 adults when taking shelter underground. The molded in seating provides comfort while the total underground shelter provides near absolute tornado and storm protection for your family.
Comfort, Safety and Security.

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Industry leading innovations

1,000+ year lifespan; Double Wall Foam Filled Construction; Rotationally Molded from Polyethylene; Molded in Seating; Limited Lifetime warranty; Lifetime Door Warranty are just a few of the industry leading underground shelter features.
Provide near absolute tornado protection for your family.

Ready to buy now?

Contact us to arrange payment & installation, or buy online, fast & easy!

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