I don't have a safe yet. I've been doing a lot of research on them but the reality of what I want vs what i can afford, is a bitch lol I'm probably going to get a Cannon or Winchester from a big box store but they will only do curbside. And I'd rather have the liability on someone else as far as getting that sucker downstairs. I know you get what you pay for but I do also have a home alarm system that is monitored. That coupled with nosey neighbors, I feel relatively safe. I'm more worried about fire or a quick smash and grab than someone coming in and taking their sweet time working on breaking it open. Know what I mean?
As for supporting the stairs, just additional stringers or should I also reinforce with 2x4's? I'd rather overdo it and spend an extra $100 on lumber than watch my safe end up through the stairs.