If you purchase these poles, instead of chopping them down yourself, you're looking at an average cost of about $20 per log, or $400 for 20 logs. Pour concrete stairs leading down to the bunker. The poles should over-hang the edges by at least a foot in order to help support the soil on top. Dig a hole a least 2 feet deeper than the height of the shipping container. Step 4: Once you've dug your trench, lay your wooden poles over top of it. A basic 3-by-11 foot waterproof tarp should run you between $20-$40. Step 3: When completed, place waterproof material over each end of the shelter to form an overhead canopy - this should keep your shelter dry as well as catch any dropping fallout.

It should be about two feet wide by three and a half feet deep - it's basically a crawl space and can double as an emergency exit for smaller individuals. Nuclear fallout typically consists of particles of a pretty large size that can be filtered. You would just need a couple of days time, some. Dig this trench just under the ground's surface with an opening to the surface at the end of it. You need an air filtration and a positive pressure system. But what about the rest of us Turns out, if a nuclear attack is imminent, you can build your own DIY fallout shelter for relatively cheap. At the other end of the trench, dig a five-foot-long ventilation trench to help circulate air. Step 2: Next, dig a five-foot-long entrance with steps or a slope down into the main area. Account icon An icon in the shape of a person's head and shoulders.

How to build a nuclear fallout shelter