2 Liberty Presidential 40's and 1 Fort Knox 70+ rifle space. All 3 were expensive as heck but well worth it considering just 2 firearms they are protecting are worth more than all 3 safes combined. Like Jeep, I was thinking about just building a vault/armory but cost wise, it's a hell of a lot cheaper to buy more safes. You have to remember the fire/heat protection of the upper class safes. To get the same amount of protection in a built vault would take a small fortune at best. Another factor you should always consider in a gun safe is a dehumidifier and a really good one! And keep it serviced or you will end up with rusty guns. About the only place in this country where you wouldn't have much worry is Arizona. And I would still make sure I invested in one anyway. Even with the DH's running, I still put 3 larger sized silica packs in each safe for assurance.