Building a Hidden Gun Cabinet in the Wall: A DIY Guide to an In Wall Gun Safe

In today’s world, ensuring the safety and security of firearms is of utmost importance. For gun owners who prioritize both accessibility and discretion, a hidden gun cabinet built within the Wall can be an ideal solution. This DIY guide will walk you through constructing your in wall gun safe, providing a secure storage option while keeping your firearms out of sight and safely hidden away.

Table of Contents

Planning and Preparation

Before embarking on this DIY project, proper planning and preparation are key. Follow these steps to get started:

1. Assessing the Location:

  • Determine the most suitable Wall for the hidden gun cabinet in your home.
  • Consider factors such as accessibility, structural integrity, and proximity to electrical wiring or plumbing.

2. Measuring and Sizing:

  • Measure the dimensions of your firearms to determine the appropriate size for the gun cabinet.
  • Mark the area on the Wall where the cabinet will be installed, ensuring it aligns with your measurements.

Construction Materials and Tools

To construct a sturdy and reliable hidden gun cabinet, gather the following materials and tools:


  • Plywood or hardwood boards
  • Hinges and screws
  • Magnetic locks
  • Wood glue
  • Sandpaper
  • Paint or stain
  • Foam padding or fabric for interior lining


  • Measuring tape and pencil
  • Circular saw or jigsaw
  • Drill and drill bits
  • Screwdriver
  • Level
  • Clamps
  • Paintbrush or roller

Building the Hidden Gun Cabinet

Follow these step-by-step instructions to build your concealed gun cabinet:

1. Cut and Assemble the Cabinet Frame:

  • Cut plywood or hardwood boards to create the cabinet frame using the measurements you marked on the Wall.
  • Assemble the frame using wood glue and screws, ensuring it is square and level.

3. Adding Hinges and Doors:

  • Attach hinges to the cabinet frame, allowing the doors to swing open smoothly.
  • Hang the doors on the hinges, ensuring they align properly and open and close effortlessly.

2. Installing the Cabinet in the Wall:

  • Carefully cut out the marked area on the Wall using a saw.
  • Secure the cabinet frame within the Wall, ensuring it fits snugly and is properly aligned.

4. Securing the Cabinet:

  • Install magnetic locks to keep the doors securely closed.
  • Test the locks to ensure they function correctly.

Finishing Touches and Safety Measures

To complete your hidden gun cabinet and ensure safety, consider the following:

1. Sanding and Painting:

  • Sand the cabinet frame to achieve a smooth finish.
  • Apply paint or stain to match the surrounding wall, ensuring the cabinet remains inconspicuous.

2. Interior Lining and Padding:

  • Line the cabinet’s interior walls with foam padding or fabric to protect your firearms from scratches and damage.

3. Concealment and Accessibility:

  • Consider additional methods to conceal the cabinet further, such as using a wall-mounted mirror or a piece of artwork as a cover.
  • Ensure the hidden gun cabinet is accessible to authorized individuals while remaining discreet and secure.

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As long as you comply with local laws and regulations regarding firearm storage, building a hidden gun cabinet can be legal and a responsible choice for gun owners.

2. Can I extend the hidden gun cabinet to accommodate larger firearms?

Absolutely! If you have larger firearms that require additional space, you can modify the cabinet’s dimensions accordingly. When planning the size of the cabinet, ensure that it provides enough room for the largest firearm in your collection. This way, you can ensure that all your firearms will fit comfortably and securely within the hidden gun cabinet.

3. Should I take any specific safety measures when building a hidden gun cabinet?

Yes, safety should be a top priority when constructing a hidden gun cabinet. Here are some important safety measures to consider:

  • Ensure the hidden gun cabinet is properly secured to the wall studs or structural supports to prevent accidental dislodging.
  • Use high-quality hinges and locks that can withstand the weight of the doors and provide reliable security.
  • Always double-check that the cabinet is installed away from electrical wiring or plumbing to avoid any potential hazards.
  • If you have children in your home, consider additional safety measures such as installing childproof locks or keeping the cabinet out of reach by mounting it higher on the Wall.

4. Can I customize the design of the hidden gun cabinet to match my home decor?

Absolutely! One of the benefits of building your hidden gun cabinet is the ability to customize its design to suit your preferences and home decor. You can choose the type of wood, the finish, and the paint or stain color that best matches the existing aesthetics of your home. Consider using materials and finishes that blend seamlessly with the surrounding walls, making the hidden gun cabinet blend in naturally.

5. Can the hidden gun cabinet be accessed quickly in case of an emergency?

Yes, accessibility in case of an emergency is a crucial consideration when building a hidden gun cabinet. While the cabinet remains discreet and hidden, it should still allow for quick and easy access to your firearms when needed. You can achieve this by positioning the cabinet in a strategic location that allows you to reach it swiftly and effortlessly. Additionally, consider incorporating quick-access features such as fingerprint or keypad locks that provide rapid entry for authorized users.


Following this detailed DIY guide, you can construct your own hidden gun cabinet within the Wall, providing a secure and discreet storage solution for your firearms. Remember to prioritize safety, compliance with local laws, and responsible firearm ownership throughout the process. With careful planning, precise construction, and attention to detail, you can create a hidden gun cabinet that offers both accessibility and concealment, ensuring the security and peace of mind you desire. Safeguard your firearms while maintaining the aesthetics of your home with this practical and customized in-wall gun safe.

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