Bomb shelter/secret bugout location on your own property

[Sniper-T]

both round and square have their advantages and disadvantages. Round is incredibly strong, but has less available space, and more importantly, less usable space. Square provides more room, more usable space, and an easier walking platform. The trade off, of course, is less strength.

In a perfect, and high budget world, I would do a combo of both... domed roof/upper walls over a square base with 5' straight pony walls.

The biggest problem with underground, especially up here with our fluxuations in temperature, and more importantly, humidity... is ventilation. Condensation dripping constantly, really fucking sucks!

[helomech]

both round and square have their advantages and disadvantages. Round is incredibly strong, but has less available space, and more importantly, less usable space. Square provides more room, more usable space, and an easier walking platform. The trade off, of course, is less strength.

In a perfect, and high budget world, I would do a combo of both... domed roof/upper walls over a square base with 5' straight pony walls.

The biggest problem with underground, especially up here with our fluxuations in temperature, and more importantly, humidity... is ventilation. Condensation dripping constantly, really fucking sucks!

The round can give almost as much if planned correctly. If I ever build one it will be 12' diameter and will have a floor built 3 foot above the bottom. This will give you 3 feet of storage space and still give you 9 feet of head room in center. After putting bunks, and shelves on the sides you will have plenty of room inside.

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This is what I want to build.

http://www.atlassurvivalshelters.com/aboutus/nbc/