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Pre-Cast Below Ground SWS Concrete Shelters

Invest in peace of mind and protectionfor your loved ones with the installation of an AMERICAN TORNADO MASTER shelter, ATSA and Texas Tech Tested and Rated for F-5 tornadoes.

  • SWS-K Model Interior Measurements: 7'0" Wide x 10'0" Length x 6'0" Height
  • 1/2" Rebar Steel on 12" centers
  • Six Sack Concrete Mix (6000 pounds/square inch)
  • Total Weight - Model SWS-K: 32,000 pounds (The absolute heaviest precast concrete storm shelter on the market!)
  • Two "non rust" 4" P.V.C. stacks for ventilation (Metal vent stacks can rust over a period of time)
  • One Heavy 10-Gauge Steel Door anchored with 20 anchors on our larger model
  • Walls, floors, and ceilings are 5" thick
  • Three Heavy Duty Security Locks
  • Predrilled for electricity and/or telephone lines
  • Build-out options available, such as bunk beds, folding tables, shelving benches, two tone interior painting, and much more!

Visit our Gallery for more samples!

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Our Built On Site Urban Concrete Models

Our Urban Concrete Series has three different model sizes available: U-SWS K - 10’x10’x6’6’’, U-SWS Q - 8’x8’x6’6’’, & U-SWS J - 6’x6’x6’6’’ Diameter

Two turbine vents for ventilation

One Heavy-10 Gauge Steel Door anchored in the Concrete.

Walls, floors, and ceilings are 8’’ to 12" thick

All Urban Models are 6’4” plus in height.

Three Heavy Duty Security Locks on Door

Predrilled for electricity and/or telephone lines

ATSA and Texas Tech Tested and Rated for F-5 tornadoes.

These units are much more labor intensive and provide sheltering for home owners in hard to reach or small access areas.

Build-out options available, such as benches, exterior and interior painting, indoor- outdoor carpeting and much more!

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All of American Tornado Master products have been tested at the Texas Tech University National Wind Institute and are engineered to meet or exceed the FEMA 320/361 and the ICC 500 Building codes.

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