I figure this room is costing me less than $10k. It is going in a basement and 3 of the walls already exist in the plan. At a minimum, the 4th wall would have to be a 2x6 loadbearing stud wall for the floor trusses. So I have the difference in cost there which I don't think would be more than $2k. The concrete celing costs about $7 per sf more so just over $4100. But I save $2+ per sf not having to put down tile backer above it for the kitchen so the ceiling is an extra $3k. Then I have $1700 in the door. That's less than $7k. What would 2 or 3 good quality gun safes cost?
I'd rather have that room then have 3 really good safes.