As sibling point out all is not lost. In a wood framed structure put lag bolts in to studs or beams. It doesnt have to be perfect. Your primary goal is to preve

As sibling point out all is not lost. In a wood framed structure put lag bolts in to studs or beams. It doesnt have to be perfect. Your primary goal is to prevent a strong man, or someone with straps/handtruck, from literally walking off with the goods. The goal of a safe is to simply delay the attacker until an active response arrives. Edit: in an appartment building check your floor loading. A little jewelry/document safe is probably fine. Big get very heavy very quick on a relatively small surface area.