Commercial Underground Shelters

Quonset Style Underground Shelters

Quonset Style options are engineered to protect 16 to 230 occupants from the devastating effects of 250 MPH EF5 tornado winds. This line of underground community shelters is ideal for organizations that need underground safe room solutions with strong steel construction and long term durability. Steadfast Storm Shelters specializes in these structures due to the complexity of designing and installing underground safety bunkers at large scales. These systems preserve surrounding architecture and remain compliant with FEMA 361 requirements.

Key Features

Custom sizing available

Coal tar epoxy coating for long term corrosion resistance

FEMA 361 and ICC 500 compliant

Cathodic protection for added longevity

Concrete barrier surrounding shelter available

45 degree ergonomic staircase for comfortable access

1/4 inch steel for structural strength

Double entry accessibility

Round rolled roof for enhanced durability

Bench seating for occupant comfort

Modular Style Community Shelters

Modular Style underground units offer scalable protection for 80 to more than 1,500 occupants, making them ideal for large commercial properties and institutions. These designs exceed typical commercial shelter installation capabilities, providing reliable underground storm shelters that can serve thousands. Survive-A-Storm Shelters engineered this modular series to withstand EF5 tornado forces while offering flexibility for expanding facilities.

Custom sizing available

Coal tar epoxy coating for corrosion resistance

FEMA 361 and ICC 500 compliant

Cathodic protection for extended durability

Concrete barrier surrounding shelter available

45 degree ergonomic staircase

1/4 inch steel construction

Double entry for efficient ingress and egress

Round rolled roof for structural performance

Bench seating throughout the structure

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EstateMax Style Below Ground Shelters

The EstateMax Style underground steel shelter is suitable for larger families or small businesses that want durable below ground shelters with added comfort. Measuring 20 ft. long by 6 ft. wide, the Max Extended Model can be installed in just a few hours and is finished with a powder coated exterior. This model functions similarly to prefab underground shelters while providing the comfort and safety features expected in modern underground safety bunkers.

10 gauge steel construction with 1/4 inch floor

1/4 inch structural steel for resistance against ground pressure

Reinforced structure for superior strength

Gasketed door with spring loaded assists and durable twin springs

Pressure tested for leak prevention

Double welded construction for a watertight seal

EMA 361 and ICC 500 compliant

Perimeter steel bench seating

Extended floor design uses surrounding earth to prevent flotation

Plumbing and electrical connection hookups

Concrete barrier surrounding shelter available

Carpeted interior for added comfort

Triple locking, single lever latching mechanism with keyed door handle

Ergonomic entry steps for easy access

So what is the cost of our commercial storm shelter?

The average cost of commercial storm shelters is approximately $1,500 per occupant. Pricing varies based on structural requirements, engineering specifications, and installation conditions. Organizations can speak with a live representative or request a custom quote that includes shipping and installation.