This chest is exactly what I was looking for. We needed a safe place to store originals of our wills, Powers of Attorney, and Advance Directives among other estate documents.  All of these are 8-1/2x11 inches and they lie flat in the Sentry chest as advertised. We also needed something that was suitable for protecting electronic media as well. There is still plenty of room in there for anything else we might decide requires this extra level of protection. Some reviews say that the chest can’t be opened once shut. I have not had any problem in that regard. The chest is deceivingly heavy, giving the impression that the 1 hour fireproof rating is most likely correct. We’re very glad to have found it and would definitely buy it again.