Re: Walk-In Safe/Basement/Building House Questions?
I am no expert by any means, but I have seen someone build a "vault" room on a budget. Unfortunately, the door (Remington) cost as much as your $1600. However, instead of CMU with rebar, the walls( he built in the corner of the basement)are metal stud, open plate metal reinforcement (walls and ceiling), then a double layer of 5/8" rock (1 hr fire wall).
The thing about the reinforced CMU is the supporting floor, it has to be reinforced itself to support that weight, and this was my friends way around it, as the house was existing. Is it inpenetrateble, no. But a thief would have to spend a lot of time getting through that wall, the door would be a quicker bet if he knew how to pick it. As a bonus, the "door" doesn't look like a vault door.
And I believe it cost him about 6K (with door)for a 8'X 10' room, which he contracted. If your house is still being built, you could probably haggle with your builder to get it cheaper.
Just my 2 cents............