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Inside dimensions:
6 feet wide by 8 feet
long
by 6 feet 1 inch tall
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Concrete:
Rated at a minimum of 6,000 pounds per square inch
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Reinforcement:
1/2 inch steel rebar 12 to 8 inches on center with fiber mesh
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Floor and ceiling:
4 inch thick steel reinforced concrete
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Walls:
3 inch thick steel reinforced concrete
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Door:
Primed steel with hydraulic closer

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Steps:
Steel treads 6 inches deep by 24 inches wide
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Weight:
12,000+ pounds.
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Capacity:
8 to10 people and/or various pets
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Ventilation:
8 inch ball bearing turbine
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Warranty:
10 year limited -
View Details
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Specifications:
Meet or Exceed FEMA (Federal Emergency Management Agency) guidelines
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What is tornado season? Tornado season usually means the peak period for
historical tornado reports in an area, when averaged over the history of
reports. There is a general northward shift in "tornado season" in the U.S. from
late winter through mid summer. The peak period for tornadoes in the southern
plains, for example, is during May into early June. On the Gulf coast, it is
earlier during the spring; in the northern plains and upper Midwest, it is
June or July.
Remember: tornadoes can happen any time of year if the conditions are right! If
you want to know the tornado peak periods for your area, Harold Brooks of NSSL
has prepared
numerous
tornado probability graphics,
which include distribution during the year.
The
Online Tornado FAQ (by Roger Edwards, SPC) |