Thread: Safe room specifications/designs

Suggested design for walls I've come up with often is concrete reinforcing mesh sandwiched between plywood. Wood slows down the metal cutting tools, metal stops the wood cutting tools. Kevlar strips is a great idea, would basically solve the reciprocating saw issue.

Also note; I have e-mailed my local arms officer asking for advice plus asking if they are happy to review plans before building the room. I'll share any advice they give here too.