How to Build a Cheap DIY Underground Bunker

By Bob Jones Mar31,2023 #ham radio

cheap diy underground bunker

Constructing an underground bunker is an effective way to protect your family. Unfortunately, it can be a challenging project.

If you’re on a tight budget but still want to build a bunker, there are several methods you can take.

One way is by using a shipping container. While this option is cost-effective, customization of the product is limited.


If you’re planning on building your own DIY underground bunker, the cost of materials depends on the type of bunker and where it will be constructed. Budget accordingly for materials.

A basic bunker can range in cost from $3,000 to several million dollars, depending on its size and features. Since this is an expensive venture, be sure to research all materials needed before beginning construction.

Another option is to purchase an existing bunker or structure from a pre-existing owner. These structures can often be found for cheap if they’re abandoned and in an ideal location; however, you will need to invest considerable funds in cleaning and upkeep costs.

Your bunker should provide ample room for everyone in your family, including sleeping quarters, storage for food and water supplies, as well as other essential items. Furthermore, it should serve as a place where you can unwind during emergencies.

When selecting a location for your bunker, ensure it’s private and away from large bodies of water. Doing so will protect the structural integrity of the bunker from water damage and should also keep it away from flammable areas.

No matter where you plan to build your bunker, you must obtain permission from local authorities before beginning construction. Doing this ensures that you do not break any laws and that your bunker remains secure.

Once you receive permission, you can begin designing your bunker. A blueprint will help determine exactly where to dig, how deep it should be, and which materials should be utilized.

If you don’t have the equipment to dig your own bunker, hiring a contractor to do it for you can be cost-effective. While this option may not be ideal, if safety is your top priority or if you lack time to construct one yourself, this might be your best bet.

The primary objective of any bunker is to protect your family from harm. This includes shielding them from radiation and blast waves, as well as from zombies or aliens invading from above. Furthermore, it’s essential that you conceal the bunker from neighbors and friends so that everyone remains secure during an apocalypse.


Bunkers are an excellent idea for anyone wanting to protect themselves from disaster. Not only will it keep you and your family safe, but it will keep warm and dry as well. Building a bunker requires time, energy, and money – all of which will be put towards creating one that will last for years.

Before beginning construction on your bunker, you must first determine its dimensions. Furthermore, determine where it will be situated as this will make drawing up a blueprint much simpler.

Next, you must decide the materials to use for construction of your bunker. Options include concrete, brick and metal sheets. If selecting either option, make sure to add insulation inside the bunker in order to prevent heat loss.

Consider adding a waterproof layer to your bunker in order to protect it from water damage. A layer of rubberized asphalt or cementitious waterproof coating can help shield the interior of your bunker against moisture damage and mold growth.

When designing your bunker, consulting an engineer is recommended. This will guarantee that you make informed decisions and create a secure structure that can withstand the test of time.

Finally, you must arrange for sanitation and power in your bunker. While there are various options here, one of the most essential is having access to clean water. Furthermore, make sure the purified water is free from bacteria and viruses.

For optimal water purification, installing a UV water filter in your bunker is the ideal solution. These filters use various frequencies of ultraviolet light to disinfect the water you drink.

Additionally, you should include a toilet and septic tank in your bunker for waste disposal purposes. A grinder and pump could also be advantageous as these will enhance the efficiency of your system as well as offer better accommodation to its inhabitants.


Constructing an underground bunker can seem like a daunting challenge for the inexperienced. It requires extensive experience, technical know-how, as well as careful planning and coordination.

First and foremost, you must decide the location and layout for your bunker. This is essential in the entire project. Additionally, make sure all necessary permits are obtained for construction. Furthermore, check the water table of the area to make sure it’s not too deep or prone to flooding.

Once all the prerequisites are in place, construction can begin. Decide on the materials for your bunker: bricks, concrete or even metal sheeting.

As a general guideline, opt for durable and sturdy material that will protect your bunker from any disasters. Concrete is an ideal option due to its ability to withstand high loads while needing relatively less upkeep. Self-healing concrete also works well as it can withstand extreme temperatures.

You could also build your bunker using a shipping container, which is ideal as it can be buried and reinforced. However, you will need to invest in strong steel foundations.

When designing an underground bunker, durability should be the top priority. With proper construction methods and materials used, a bunker can last for years with little upkeep required.

After selecting the materials for your bunker, it is essential to find an ideal location away from other buildings and people. It should also be in an area which has neither rocks nor clay on its surface. Furthermore, try not to place it too close to natural gas pockets, bedrock formations, electrical circuits, or shallow water tables.

If you can afford it, hiring a professional team to finish your bunker project can save time and money. The team should include excavators, plumbers, electricians, and painters.


An underground bunker is one of the most essential things you can have if you’re prepared for disaster. It’s a safe haven that will protect you and your family from natural disasters as well as nuclear bombs – but it also requires significant work.

Before anything else, you need to plan your bunker and decide what goes inside of it. Make sure there’s enough food and water, plus either a generator or solar power system for running lights, heaters and air conditioning.

If you’re uncertain of what features should go in a bunker, having an experienced designer help design one that meets both your needs and budget. They can also advise on its size as well as where it should be built.

When planning for underground living, you should also take into account if a ventilation system is necessary. When underground, oxygen is key and an efficient system provides it efficiently.

When designing your bunker, there are plenty of materials to choose from. For those on a tight budget, simple plywood boxes or shipping containers may suffice.

Another option is purchasing an existing underground bunker. These are usually abandoned complexes that have lain neglected for years and can be acquired at a discounted price.

Unfortunately, these bunkers have the disadvantage of being outdated and you’ll need to spend a considerable amount on upkeep and restoration.

You may need to find a new location for your bunker if there are existing gas pockets in the ground. These can be hazardous, so it’s best to have an expert survey the area before digging.

Finally, you’ll need a permit for your bunker. Doing so guarantees that no communication lines or other infrastructure will be destroyed during construction.

If your bunker is being constructed in an area considered unsafe for construction, a permit is also necessary. Doing this will shield you from fines and other issues that could arise during a crisis.

Related Post