While surfing around I found a pretty good booklet on bulletproofing your home. This is 12 pages and has some really outstanding information on materials, construction and specifications for making your house impervious to small arms.
In today’s climate, you never really can be to safe. If you have the ability to make the changes to your home to toughen it up, I think it’s a good idea. Here are some examples of why
2 Year old shot in her house by a stray bullet
8 year old struck by a bullet while she slept
6 year old killed by bullet fired into the air while asleep
You can download it here