Time

2 to 3 hours

Complexity

Beginner

Cost

Less than $20

Introduction

Transform your obsolete telephone wall jack into a clever hidden storage space with this simple step-by-step project.

Landlines are a thing of the past, rendering the phone jacks in most homes useless. You can use the space inside the telephone wall jack as a mini secret safe. With the wires removed, you’ll have space to hide some cash, jewelry or small collectibles. Then find or make something decorative to cover the opening, and no one will ever suspect there’s loot hiding behind it!

This project will take some time to complete because you’ll need to wait a few hours for the super glue to dry completely. The first time I tried this, I didn’t wait long enough for the glue to dry, and the magnets were pulled off the wall. So, don’t make my mistake—be patient and let everything dry properly.

Is it safe to cut old telephone wires?

Modern communication wiring runs on low-voltage systems (less than 50v). However, phone lines used in the past were copper, which could carry a significant amount of current if improperly wired or insulated. That said, whenever you’re doing a project like this one that involves removing wiring, use a voltage tester to ensure you don’t encounter any unexpected voltage.

Tools Required

  • 3/16” drill bit
  • Drill
  • Screwdriver
  • Shop vac
  • Tape measure
  • Tin snips
  • Utility knife
  • Wire cutters

Materials Required

  • 22-gauge steel sheet metal
  • 5mm magnets
  • CA glue (Super Glue)
  • Wire nuts

Project step-by-step (7)

Step 1

Remove the face plate

Use a flathead screwdriver to remove both screws in the phone jack face plate.

a close-up of a person’s hand using a flathead screwdriver to remove a screw from an electrical outlet cover on a wall, The wall is painted in a light color, There is one screw partially removed lying on the surface below the outlet;Family Handyman
Family Handyman

Step 2

Cut and cap the wires

Detach the wires from the back of the faceplate and cut them short enough to hide in the back of the junction box. Cap off the wires by twisting wire nuts onto the cut telephone wires.

a close-up of a hand using a yellow and black handled saw to cut into a square section of drywall, An orange cable runs through the middle of the cut section, The wall is painted off-white with a visible texture, Below the square opening, there’s a round hole in the floor with a similar orange cable coming out;Family Handyman
Family Handyman

Step 3

Clean up

Use a utility knife to tidy up any drywall edges if necessary, then use a shop vac to clean up any dust.

a close-up of person's hand using a red and black utility knife to cut into a section of drywall, There is a partially cut square hole in the wall, revealing some grey material behind it, To the right, there is an electrical outlet on the same wall. The wall is painted light beige;Family HandymanFamily Handyman

Step 4

Attach the sheet metal

Measure the back of the inside of the faceplate, and cut pieces of 22-gauge sheet metal (found at most home centers) to fit on the back of it.

Use CA glue (aka Super Glue) to adhere the sheet metal to the back of the faceplate. A gel or medium-viscosity CA glue works best. Ensure that the glue has cured for the necessary time before proceeding.

a person using a pair of yellow and black handled pliers to cut a gray metal object, The person is standing next to a countertop with a blue surface, On the countertop, there is an electrical outlet with an open cover plate, there is a green potted plant on the counter; a person’s hand holding a bottle of glue, applying it to a beige-colored object that looks like an electrical switch plate without the switch, The switch plate is placed on a blue speckled countertop, and there is a piece of gray material, possibly metal or plastic, lying next to it, In the background, there are objects that seem to be tools;Family Handyman
Family Handyman

Step 5

Glue magnets to the wall

Depending on your setup, glue the 5mm magnets to the electric box or the drywall. If there isn’t enough space on the electric box, drill 5mm or 3/16-in. holes the thickness of the magnets to countersink them in the drywall. When gluing to the core of the drywall, be sure to use plenty of glue, as the porous nature of the drywall will soak some of it up.

a close-up of a person’s hand pointing to an electrical box that is recessed into a wall, The wall appears to be made of drywall, and the electrical box has visible metal components inside, There is a red-orange outline around the electrical box, possibly a marker or paint, Below the wall and electrical box, there is a countertop with speckled patterns, and on top of this countertop lies a white sheet of paper;Family Handyman
Family Handyman

Step 6

Trim faceplate screws

Using tin snips, cut the screw heads off of the face plate screws and glue the heads back into the screw holes in the faceplate. This will create the illusion of the faceplate being screwed into the wall.

a pair of pliers with yellow handles lying on a blue speckled surface, There are also two small metal objects, which appear to be rivets, placed near the pliers;Family Handyman
Family Handyman

Step 7

Attach faceplate video still

Once the glue on the magnets has cured, you can conceal small valuables in the box and easily access them by using the magnets to attach and remove the faceplate.

a close-up of a person's hands removing a light switch cover, Behind the switch, there’s a rolled-up banknote hidden inside the electrical box, The wall is painted in a light color, and there’s an additional electrical outlet visible to the right, The countertop appears to be made of speckled laminate in blue and brown colors;Family HandymanFamily Handyman

FAQ

Do telephone jacks have electricity?

Even when the power to the landline is off, there is still a very low amount of amperage.

How do you remove an old wall-mount phone jack?

To patch over an old telephone wall jack, you’ll first need to remove the faceplate and electrical box in the wall. Once this is done, deal with the wires by disconnecting them at the main phone box first, if possible. Then, snip the wires and tape the ends with electrical tape before tucking them into the wall. After that, you can patch the wall.

A metal plate is placed on the surface, ready to be mounted or attached; Nearby, essential tools like a screwdriver and a measuring tape are laid out; A bottle of glue and a nail are also available for securing the plate; The countertop features two electrical outlets and a small potted plant;Family HandymanFamily Handyman