Nuclear, Biological & Chemical (NBC) Vault Doors
Sealed Doors for Fallout Shelters, Safe Rooms & Government Facilities
For the Vault door Client Who Wants it All
Our American-made NBC vault doors secure safe rooms domestically and around the world. Our 12″ thick NBC vault doors are built with triple-tiered steel construction, U-shaped blast resistors and Jig-Saw five-point sealing doors. Where many NBC vault doors have simple locking systems, ours carry Sargent & Greenleaf Group I locks, 18 locking bolts and 1″ thick 60-Rockwell hardplate — so the room doubles as a walk-in vault.
Our N.B.C. Compress Seal system makes your vault room Nuclear, Biological & Chemical resistant. We add NBC seals to your 3″ Step-System door and frame, then continuously weld every inch of the vault, frame and seams — including along the internal steel panels and around the lock hole — to keep the room airtight.
Most people who call us are looking for a bunker door, a bomb shelter door or a nuclear bunker door, and on this page they are all the same build: a sealed, blast-rated steel door on our Tankhead platform. Bunker door prices depend on the size, the seal and the fire rating, so every underground bunker door is quoted individually — call and we will price yours.
We can even add an NBC-resistant “lunch pail” over your lock so the complete locking system is sealed. NBC doors combine our 6000° concrete fireproofing, blast-resistant construction and ballistic steel for the ultimate protective room. Every door is custom-built in the USA.
NBC Door Features
Tankhead Blast Door
Heaviest, Most Fireproof, Blast-Proof Vault Door in U.S. History
Ultimate Ballistic Door & Blast Door — 3000 lbs. If you want blast protection, mega-fireproofing and a 12″-thick vault door that is almost impossible to cut through once filled with concrete, get the Tank Vault. Add the N.B.C. Compress Seal system to it and the same door becomes your nuclear, biological and chemical door. NEW — 6000° concrete fireproofing, 4× more fire-resistant than drywall.
Four-Point Sealing Step Doors
Pentagon’s NBC doors are step-sided. Steel steps are built on the inside of our 12″ vault doors with female steps along the frame, so the door shuts and interlocks into a step frame — airtight, waterproof and gas-proof. Custom gaskets are fitted to suit the door’s application.
N·B·C Blast Hatch Doors
Our blast hatches now come with N·B·C resistance, and they come with vault-level security — most hatch doors are easy to break into. With the internal release, leaving your vault room in an emergency is simple: lift the spring-loaded handle and pull it toward the middle of the door.
The fire levels are extraordinary. With a concrete-filled 6″ blast carriage door your hatch is 2-hour fire-rated and carries a blast rating not available on most N·B·C products. Your hatch vault can also be ordered with our Porcupine reinforcement system — twelve 1″ thick, 5″ long steel posts continuously welded to your frame, so the vault can be tied directly into the rebar of your concrete-filled walls.
NBC Customer Review
“I received my blast door & hatch. The greatest thing is the quality and value! I got both doors for the price of the one door featured on the TV show ‘Deep Earth Bunkers’. You can’t even compare their $7,800 to your self-filled doors!” C. D. — Nuclear Vault Customer
Nuclear-Biological-Chemical Hatch Doors
| Size | Specifications | Price |
|---|---|---|
| 35″ x 35″ x 12″ | 2 HR Fire Rating — Double NBC Seals, Continuous Welds, 22 lbs PSI | $7,995 |
| 35″ x 35″ x 12″ | 5″ Concrete-Filled Jig-Saw Door — 3 HR Fire Rating — USA Made | $10,445 |
| 40″ x 40″ x 12″ | 2 HR Fire Rating — Double NBC Seals, Continuous Welds, 22 lbs PSI | $9,095 |
| 40″ x 40″ x 12″ | 5″ Concrete-Filled Jig-Saw Door — 3 HR Fire Rating — USA Made | $11,695 |
Nuclear-Biological-Chemical Vault Doors
| Size | Specifications | Price |
|---|---|---|
| 80″ x 35″ x 12″ | 2 HR Fire Rating — Double NBC Seals, Continuous Welds, 22 lbs PSI | $11,695 |
| 80″ x 35″ x 12″ | 5″ Concrete-Filled Jig-Saw Door — 3 HR Fire Rating — USA Made | $12,995 |
| 80″ x 42″ x 12″ | 2 HR Fire Rating — Double NBC Seals, Continuous Welds, 22 lbs PSI | $12,995 |
| 80″ x 42″ x 12″ | 5″ Concrete-Filled Jig-Saw Door — 3 HR Fire Rating — USA Made | $14,295 |
Hatch Door Lifts — Add $995 · Bomb-Shelter Door $3,799
The NBC seal has been tested in the field and passed at 25 PSI. No doors broken into or losses due to fire in 49 years. Nuclear power plant doors made to order. Two-in-one vault doors — NBC and 4-hour fire resistance, pour-in-place frames, continuous welds and NBC seals.
4 Hour Vault Door — 1700lbs Self-Filled Concrete Door
Only $3,299
Pentagon Vault Doors makes the biggest breakthrough in vault door design. Our 5″ thick vault door — 8″ overall thickness — is the first 4-hour vault door under $4,000. Two layers of steel sandwich three vertical U-shaped steel blast resistors, and the three blast resistors are free. After installation we pour concrete into the top of the door, turning this NBC door into a 1700lb 4-hour fire vault door as well.
Professional Consultants
NBC Rooms, Shelters & Walk-In Vaults
Sportsman and Pentagon Vault Doors want to build you the perfect Nuclear-Biological-Chemical shelter. Whether your project is large or small, we can design an NBC room or walk-in vault for less than you think. Everyone has a different budget, which is why our blast-resistant doors and rooms range from $6,000 to $2,000,000.
Our NBC shelters usually cost $150 to $200 a square foot, with air filtration systems, water purification pumps, tech valves and comfortable living space. We build special step-system hatch doors with secondary entrances and hidden passages. Our safety shelters are much like underground homes — kitchens, bathrooms, closets and bedrooms with your choice of carpet, tile and sheet-rock walls, painted or textured.
We come to your residence or business personally to install your NBC room and walk-in vault. No local contractors — our own qualified NBC workers and consultants do the job, to a 45-point inspection. Our hi-tech mobile trucks travel North America for full service. Call and we will quote you, explain what to expect from your new NBC room or walk-in vault, and fly to your home or business to survey the property for a full-service site development quote.
Our filtration systems protect you from Agent Orange, nuclear fallout air and almost all known contaminants. Our bomb shelters and NBC rooms look like attractive additions to your home, but the walls are built with patented impact-resistant, fire-resistant super shells, along with blast resistors and air purification that deliver protection in a dirty bomb or nuclear crisis. Whether you need an NBC room, safe room, nuclear shelter, panic room or walk-in vault, call us on 800-266-7150 — one call does it all.
Armored Military Shelter Doors
Pentagon blast-resistant vault doors are used in civil defence and military shelters. Armor-plated doors, stainless steel doors, armor-plated covers and pressure doors are available at high and medium levels of protection. Concrete can be added to the double-steel 8″ door on installation, or our technicians can add it during manufacture for optimum bond. Properly installed, Pentagon doors protect against chemical agents and radioactive fallout.
Rooms need ventilation units fitted with valves, pre-filters and NBC filters. NBC ventilation units create over-pressure inside the shelter so harmful gases cannot leak in. The filters are shockproof units that clean the air of nuclear fallout, radioactive materials and dust, biological agents and all known war gases. Contaminated air is drawn through the shelter valve and the NBC filter, passes activated carbon and HEPA stages, and comes out breathable. Lunor NBC filter systems protect against contamination from radioactive fall-out and all known chemical and biological agents, and their gas filters suit Lunor ventilation units.
NBC Room or Walk-In Vault — It’s Both
When your NBC room is not being used as a safe room it works as a walk-in vault. Built with twin relockers, concrete fire insulation and three-layer steel doors, we have never had a door broken into in 49 years. All vault dimensions are exterior dimensions including the frame — call for walk-through dimensions.
Pentagon & Sportsman blast doors and safes protect security products at the FBI, DOJ, DEA, ATF, NYPD, LAPD, US Homeland Security, the US Secret Service, the US Inspector General’s Office, Lyntech Technology and the Wyoming Dinosaur Museum. We have been building blast-resistant doors for 49 years. From the first consultation to the design, the excavation and the installation of your blast-resistant super door, we make sure the process runs smoothly.
NBC Filtration Systems
The All-In-One Package
The LX-16 Pack digital video recorder gives you surveillance of what is happening outside your NBC room, into the house and the back yard. It plays DVDs and locks in radio signals for outside communication in a national emergency. The professional-series 16-channel DVR ships with sixteen cameras, anti-pixilation technology, H.264 streaming, optical mouse and remote, DVD backup, VGA card, central management software, jog shuttle and up to 480 FPS recording, with Sony CCD advanced DSP colour cameras and an extended warranty available.
NBC Vault Door Gallery
Frequently Asked Questions
What disasters can my NBC shelter protect my family and valuables from?
Bio-chemical emergencies, hurricanes, earthquakes, fire, high-impact explosions, gunfire, electromagnetic radiation, plus most nuclear assaults, burglaries, intruders and break-in theft.
How long does a shelter take to build?
That depends on size and accessories. Our shelters are custom designed on site to suit the climate and terrain. An NBC room usually takes a month.
Can your shelters be built for commercial use?
Yes — for an office, business, government agency, university or a retirement home.
How long can you stay in an NBC shelter?
Indefinitely, depending on your food and water supplies.
Can shelters accommodate the handicapped or elderly?
Yes. We provide ramps and rails where they are needed.
Will an NBC room reduce my home insurance?
Yes, though your own insurance agent has to make that assessment.
How do people finance a shelter?
You may not need to — our NBC rooms are not terribly expensive. Otherwise finance it like any home improvement: refinancing, a line of credit, or restructuring your current home loan.
Is it true concrete shelters are dangerous because of the moisture they hold?
It can be, which is why we use a high-quality sealant mixture in the concrete that keeps moisture out and keeps your family safe, comfortable and protected.
What makes a vault door NBC-resistant?
Our N.B.C. Compress Seals plus continuous welds on the frame, seams and internal panels make the room airtight, blocking nuclear fallout, biological and chemical agents.
Can the lock be sealed too?
Yes. We add an NBC-resistant “lunch pail” cover over the lock so the complete locking system is sealed against contaminants.
Can an NBC door also be blast and fire rated?
Yes — NBC doors are built on our blast-resistant platform with 6000° concrete fireproofing and optional AR-500 ballistic steel.
Who uses NBC vault doors?
Fallout shelters, safe rooms, survival shelters, government facilities and high-security residential vaults.
Talk to an NBC Consultant
Call for a free quote and we will come to your home or business for a site evaluation, looking at your terrain, location and altitude. Best price guarantee. Our specialists explain everything from manufacturing and installation through to testing and maintenance, and we travel North America personally installing and constructing our NBC rooms and blast-resistant doors — no local contractors.
Kevin Hand — COO/CEO, Blast-Resistant Door Specialist and NBC Consultant. Call 800-266-7150, visit the Houston showroom on 713-681-4100, or email kevinsafeexpert@yahoo.com for a quote. No one beats our prices. No one has our quality.
All Sportsman Steel & Pentagon vault designs belong solely to Sportsman Steel, Inc. and are not subject to replicating for personal fabrication. If you are a company or individual who would like to license our designs, call our legal team for a licensing agreement — 800-266-7150.
Explore Our Vault Doors
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NBC door builds, seals and installations
