- Designed for vertical shaft installation
- Spring loaded lift assistance cylinders for opening
- Spring loaded shock absorbers to keep door frame from closing uncontrollably
- 3/8 inch thick steel door leaf
- 3 inch square tubing for reinforcement
- 3/4 inch steel plate internal hinges
- Dimensions: 38.5″ X 38.5″ X 12.5″
- Removable hydraulic jack, this is extremely useful in the event that debris falls on your hatch opening while you are inside.
- Removable lock hasp with NBC seal for self rescue
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Custom underground bomb shelter plans, underground bunker construction, and supplies