We have discussed whether or not it is worth it to build an underground bunker as well as what materials you should (or should not) use.
To be sure, in some scenarios, if cost is not an issue, an underground bunker could come in handy, especially if the survival scenario you face is truly a catastrophe (nuclear blast, EMP, etc.)
If you decide you are going in the direction of building your own underground bunker, there are several factors you need to consider, both before and after you break ground.
The first, obviously is location – where do you want to build your underground bunker?
After that, however, there are as many factors to consider as there if you were building a house as opposed to a bunker.
To see a few things you must consider, check out the next page.