Bomb Shelter Engineering Firm. Radius is the premiere American underground bomb shelter and underground disaster shelter manufacturuer in the United States. The future belongs to those who plan. Family protection from weaons of mass destruc...
Experts in fortified home concepts and bunker construction, Hardened Structures can build your family a simple tornado shelter or survival shelters designed to withstand WMD attacks.
Underground Disaster Shelters from Radius Engineering provide full protection from Nuclear, Biological, Chemical threats including earthquakes + 8.5 Richter scale