Do Storm Shelters Really Withstand Tornadoes?

If you’ve ever watched an Oklahoma storm tear through a neighborhood, it’s natural to wonder if a storm shelter can really hold up. The short answer is yes, when it’s designed and tested to the right standards. The details behind that answer are what separate a true storm shelter from a basic underground box.

Shelters that meet or exceed FEMA 320 and ICC 500 guidelines are built with specific requirements in mind. Wall thickness, door construction, anchoring, and ventilation all have to perform under extreme pressure. Manufacturers submit shelters for impact testing, where heavy debris is launched at high speeds to simulate what happens when boards, metal, and other materials become missiles in a tornado. If the shelter cracks, shifts, or allows dangerous penetration, it does not pass.

Biggs installs shelters that are built to those strict standards and tested through recognized labs and programs. That means the concrete is reinforced, the door systems are engineered for more than everyday use, and the entire unit is designed as a complete safety system. You’re not trusting guesswork, you’re relying on engineering that has been pushed far beyond normal conditions.

No structure can move your home out of the path of a tornado, but the right shelter can give you a hardened space that is built for the worst case, not the average storm. When you talk with Biggs about a shelter, you can ask how the model was tested, what standards it meets, and what kind of warranty stands behind it. When the sirens sound, you need a place that is proven, not just promised.