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
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?
