Posted 4/15/2024 12:49 (#10707631 - in reply to #10707411) Subject: RE: Anyone built their own below ground storm shelter?
Central NY Leatherstocking Region
I would just add on a room made of reinforced cast in place concrete (walls as well as ceiling), and finish it on the inside and out to match your house. You then have a useable room thar serves as a shelter.
As long as you have a rugged enough door, I don't think debris would penetrate eight inches of reinforced concrete