Cheap Diy Underground Bunker. Even the dimensions of the floor plan are up to you. Your shelter is your business.
Dont expect it to cost less than 3000 though. Homemade storm shelter bunker made out of a piece of pipe. Bury a school bus to use as an underground bunker.
Your shelter is your business.
However if you arent a contractor and are on a budget then these are probably the best options. These will significantly drop the price of construction. This can make or break your chances at building an affordable survival bunker. Using a shovel dig a 12-foot-wide 16-foot-long and 8-or-more-foot-deep hole.