Quote Originally Posted by Sean
how would this work? (because I am also looking for a solution) - A shell built out of cinderblocks and a fireproof safe within this shell. Might be tricky making an entry point to the safe?
Yes - good point . well my Grandfather had a fireproof safe surrounded on 4 sides by the NZ equivalent of cinderblocks, on a concrete floor. (They were actually concrete blocks about 8x8x15" which have two big air pockets incorporated in the design). Used extensively in construction in New Zealand.