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Underground Quonset Storm Shelter

Underground Quonset Commercial Storm Shelter

Custom Pricing

Protects 16-230 employees • Round rolled roof design • Complete underground concealment

Preserves facility aesthetics while providing maximum tornado protection.

The Underground Quonset commercial tornado shelter is ideally suited for protecting 16-230 occupants from 250 MPH EF-5 tornado winds. This underground solution allows preserving the aesthetics of your business location while providing FEMA 361 compliant protection. Custom sizing available for any Tennessee commercial requirement.

Available Size
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Built When You Order: We manufacture this shelter specifically for your project after purchase. Delivery timeline is typically 4-6 weeks across Tennessee.

Underground Quonset Features

Round rolled roof design engineered for maximum protection with complete underground concealment. Quarter-inch steel construction meets all Tennessee commercial building code requirements.

FEMA P-361 and ICC-500 compliant • EF-5 tornado protection (250+ MPH winds) • Complete underground concealment

Quarter-Inch Steel Construction
Round rolled roof design with quarter-inch steel provides maximum debris deflection and structural integrity.
Coal Tar Epoxy Protection
Industrial-grade coal tar epoxy coating with cathodic protection ensures decades of corrosion-free service underground.
Ergonomic Staircase System
45-degree ergonomically designed staircase with double entry points provides safe emergency egress for all occupants.
Custom Engineering
Custom sizing and engineering available to match specific facility requirements and site conditions.
Concrete Barrier Options
Optional concrete barrier surrounding shelter provides additional protection and structural support.
Built-in bench seating maximizes occupancy capacity while providing comfortable emergency shelter.
Solar panel kits available for extended power independence during prolonged severe weather events.

Capacity & Specifications

Flexible capacity scaling from 16 to 230 occupants with custom sizing to match your specific business requirements and site conditions.

Capacity Range:

Details: D16-230 occupants
Business Benefit: Scalable to any mid-size facility requirement

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Construction:

Details: Quarter-inch steel, round rolled roof
Business Benefit: Maximum debris deflection and structural integrity

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Installation:

Details: Complete underground concealment
Business Benefit: Zero impact on facility aesthetics or operations

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Access:

Details: 45-degree ergonomic staircase, double entry
Business Benefit: Safe emergency egress with ADA considerations

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Customization:

Details: Custom sizing available
Business Benefit:Engineered for specific site and capacity needs

Specification
Details

Business Benefit
Capacity Range
Construction
Installation
Access
Customization
16-230 occupants
Quarter-inch steel, round rolled roof
Complete underground concealment
45-degree ergonomic staircase, double entry
Custom sizing available
Scalable to any mid-size facility requirement
Maximum debris deflection and structural integrity
Zero impact on facility aesthetics or operations
Safe emergency egress with ADA considerations
Engineered for specific site and capacity needs

Installation & Engineering Requirements

Underground Quonset installation requires professional excavation, placement, and restoration. Wolcott manages all engineering coordination, permitting, and installation logistics for Tennessee commercial projects.
  • Professional excavation and placement using specialized underground installation equipment
  • Custom foundation engineering designed for Tennessee soil conditions and water tables
  • Complete site restoration including landscaping and surface finishing
  • Installation timeline typically 1-2 weeks including excavation and restoration
Schedule Commercial Assessment

Installation

Our certified crews handle complete installation including concrete cutting, excavation, shelter placement, and restoration. GarageCube installation requires professional equipment and expertise.
  • Professional installation required (concrete cutting and excavation)
  • Anchored and sealed for maximum protection
  • Installation typically completes in 1-2 days
  • Garage restoration and cleanup included

Warranty Registration

Quonset style shelters include manufacturer warranty registration through Survive-A-Storm. Warranty terms, registration process, and coverage details handled directly with the manufacturer.
Register Your Shelter with Survive-A-Storm

Explore More Shelters

Every space is different. If this model isn’t the right fit, here are a few other shelters our customers often choose
Underground Modular Commercial Storm Shelter

Underground Modular Commercial Storm Shelter

Protects 80-1,500+ employees • Unlimited capacity scaling • Complete underground concealment

EstateMax Commercial Storm Shelter

EstateMax Commercial Storm Shelter

20′ x 6′ underground shelter • Small businesses and communities • Rapid installation

Have Questions? We’re Here to Help.

We’ve helped hundreds of Tennessee families do this right – let’s talk through yours.
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