Hide Frame TV Wires Behind Drywall (In-Wall Box)
To conceal a Frame TV’s wires behind drywall, use a listed in-wall power-relocation assembly for power and a separately approved, in-wall-rated cable for the TV signal. Never bury the TV’s factory power cord or an extension cord. Check your TV’s cable requirements, the kit instructions, and local electrical rules before cutting into the wall.
If you have just mounted a Frame TV, the dangling cable can interrupt the clean look you wanted. A neat installation starts with choosing the right route, not hiding a cord at any cost. I look for a solution that suits the exact TV, can be checked and serviced later, and avoids unnecessary wall damage. Reusing a compatible signal cable and making a careful, small opening can also help limit material waste.
The key distinction is that power and signal cables follow different rules. A low-voltage signal cable is not automatically allowed inside a wall, and a power cord is not safe to conceal just because it fits behind drywall. Here is how to plan and complete the installation with those differences in mind.
Plan the TV, Kit, and Cable Route
Start by identifying the TV’s exact model and the cables it uses. A Frame TV may connect to a One Connect box, and its supplied cable may have model-specific requirements. Choose a complete, listed power-relocation assembly for the power path, then verify that the signal cable is separately approved for in-wall use.
A power-relocation assembly moves a receptacle to the TV location using the components supplied with the kit. Depending on the product, these may include an inlet, an outlet, boxes, and specified wiring. Use the complete assembly as instructed; do not mix in parts or wiring unless the product instructions allow it.
Check the TV cable before buying a kit
Read the TV manual and inspect the supplied cable’s markings. Do not assume that a cable is suitable for in-wall use because it is thin, carries low voltage, or came with the television. If the manufacturer does not approve it for an in-wall route, use an approved in-wall-rated replacement or a permitted surface route.
Never route the TV’s factory power cord inside the wall. NEC 400.12(1) prohibits using flexible cords as a substitute for fixed wiring or concealing them behind building surfaces. That rule also means you must not hide an extension cord or power strip in the wall.
Compare the power and signal paths
| Path | What to use | What to check |
|---|---|---|
| TV power | Complete, listed power-relocation assembly | Product rating, included parts, wall type, orientation, and instructions |
| TV signal | Separately approved in-wall-rated cable | Exact TV model’s cable needs, cable markings, length, and route |
| Existing factory power cord | Keep outside the wall | Do not bury, splice, or replace it with an extension cord inside drywall |
| Air-handling space | Wiring method and cable allowed for that space | NEC 300.22(C) and local requirements |
Ratings are specific to each product, not universal. Check the kit label and instructions for voltage, amperage, installation direction, and permitted wall construction. If the TV’s signal cable must connect to a separate box, plan where that box will sit and keep the cable within its allowed bend and strain limits.
Check Stud, Box, and Cable Clearances
Before making an opening, map the TV bracket, studs, proposed inlet and outlet, and cable route. Look for existing wires, plumbing, insulation, fire blocking, and any space used for environmental air. A route that looks clear from the room may still cross a hidden obstruction or a restricted air space.
A stud finder is useful, but it cannot confirm that a cavity is free of services. Use appropriate inspection methods and stop if you cannot identify what is behind the drywall. Do not drill framing blindly or cut a structural member to make the route fit.
Protect cables near framing edges
NEC 300.4(A)(1) requires protection when a cable passes through a framing member less than 1¼ inches from its edge. Where required, install a suitable steel nail plate to help prevent a nail or screw from reaching the cable. Check the planned route at each framing member, not only at the TV opening.
Also check drilling limits and the kit instructions before making holes in studs. Keep the cable away from sharp edges, and do not leave it loose where it could be pinched by the mount or damaged during wall finishing. If the route needs a change, reassess it before cutting.
Place boxes within the finished-wall limits
A box is the enclosure that holds a receptacle, inlet, or other connection. Under NEC 314.20, boxes in noncombustible finishes may be set back no more than ¼ inch from the finished surface. In combustible-finish surfaces, boxes must be flush with or project from the finished surface.
Set each box so the finished wall position meets the applicable rule and the kit instructions. Keep connections accessible as required by the product instructions and applicable code. Do not cover a box with drywall or leave a connection hidden behind a fixed finish that prevents access.
Check for plenum spaces
A plenum is a space used to move air as part of a building’s heating, ventilation, or air-conditioning system. If your cable route enters an environmental-air space, NEC 300.22(C) applies. Use only wiring methods and cable types permitted for that space; ordinary in-wall cable is not automatically plenum-rated.
If you are unsure whether a cavity is part of an air-handling system, ask a qualified electrician or your local authority before installing cable there. Requirements can depend on the building and the locally adopted code.
Install the In-Wall Power and Signal Path
Once the route is confirmed, follow the kit instructions in sequence. De-energize affected circuits before working near electrical wiring. If you cannot identify the correct circuit or safely confirm it is off, stop and get help from a qualified electrician.
A listed assembly is tested as a complete product for its intended use. Keep its supplied parts together and install them in the specified orientation. Do not modify the TV’s power cord, splice it, or substitute a standard extension cord for the assembly’s wiring.
Installation sequence
- Mark the inlet and outlet positions, checking that they suit the TV mount and the connected equipment.
- Confirm the cable path and inspect for hidden services before making openings.
- Install the power-relocation assembly exactly as its instructions specify, including its boxes, inlet, outlet, and wiring.
- Route the approved signal cable separately as directed. Avoid sharp bends, pinching, and tension at the TV or connected device.
- Support cables as required, protect them at framing edges, and preserve any required firestopping.
- Keep box fill within applicable limits and leave connections accessible where required.
Do not assume that a power kit also makes every signal cable acceptable inside the wall. Treat the two paths separately: the assembly handles power, while the signal cable must meet its own markings, TV requirements, and applicable installation rules.
Finish the Wall and Verify the Installation
Before patching drywall, check that the boxes sit correctly, the cable is undamaged, and every connection remains reachable as required. After the wall is finished, test the receptacle and TV. A clean appearance matters, but the installation also needs to remain secure, functional, and serviceable.
Complete these checks before closing the wall
- Confirm the outlet and inlet are installed as shown in the kit instructions.
- Check the signal cable’s markings and make sure it reaches without strain.
- Verify required cable protection, support, and firestopping.
- Confirm boxes meet the applicable finished-surface position and remain accessible.
- Ensure no cable is trapped by the TV bracket or drywall patch.
After installation, verify receptacle polarity and grounding with an appropriate tester, then confirm the TV and connected equipment operate normally. If you are not trained to test electrical outlets, ask a qualified electrician to do this. Follow the kit instructions and local rules for any additional checks.
Common installation scenarios
In my work, the same two issues often shape the plan: the TV’s supplied signal cable may not be approved for an in-wall route, and the nearest clear stud bay may not line up with the mount. For example, if a cable’s markings or manual do not permit in-wall use, I do not hide it anyway. I choose an approved cable or a surface route.
If framing or a fire block prevents a straight path, I reassess the route rather than drilling without inspection. A small change in box location may solve the problem, but the final position still needs to work with the mount, equipment, box rules, and kit instructions.
| Situation | Safer next step |
|---|---|
| Supplied signal cable has no clear in-wall approval | Check the TV manual and cable markings; use an approved replacement or surface route |
| Stud or fire block interrupts the route | Inspect and plan another permitted path; do not cut structural framing blindly |
| Cable would pass close to a framing edge | Apply the 1¼-inch clearance rule and install a suitable nail plate where required |
| Wall cavity may be an air-handling space | Confirm the space and use wiring permitted under NEC 300.22(C) |
| Kit rating or installation direction is unclear | Pause and confirm the product label and instructions before proceeding |
If a route cannot meet the TV, kit, and code requirements, a surface-mounted cable cover is safer than concealing an unapproved cable. It may not be completely invisible, but it avoids burying a cord that should remain outside the wall.
Key Takeaways and FAQs
A safe, hidden installation uses the right method for each cable: a complete listed assembly for power and a separately approved cable for the TV signal. Confirm the route before cutting, protect cables at framing, and verify the finished boxes and connections. Code editions and local amendments vary, so check with the authority having jurisdiction (AHJ) and follow the kit instructions.
Can I put the Frame TV’s power cord inside the wall?
No. Do not conceal the factory power cord, an extension cord, or a power strip inside drywall. Use a listed power-relocation assembly designed for that purpose.
Can I use the TV’s supplied One Connect cable in the wall?
Only if the exact cable is approved for in-wall use and the TV manufacturer permits that route. Check its markings and the TV instructions. If approval is unclear, use an approved replacement or a surface route.
Does a low-voltage cable need an in-wall rating?
Yes. Low voltage alone does not make a cable suitable for concealed installation. Check the cable markings, manufacturer instructions, and rules for the space it will enter.
What does a listed power-relocation kit include?
It is a complete assembly with the specified parts for its intended installation. Parts vary by product, so follow its label and instructions rather than assuming another kit’s rating or parts apply.
How far from a stud edge can a cable pass without protection?
NEC 300.4(A)(1) calls for protection when a cable passes through framing less than 1¼ inches from an edge. Install a suitable steel nail plate where required.
How far back can an electrical box sit?
Under NEC 314.20, a box in a noncombustible finish may be set back up to ¼ inch. In a combustible-finish surface, it must be flush with or project from the finished surface.
Can I route the cable through a return-air space?
Do not assume ordinary in-wall cable is allowed there. NEC 300.22(C) applies to environmental-air spaces, and the cable and wiring method must be permitted for that space.
Should I install the kit myself?
That depends on your skills, local rules, and the product instructions. If you cannot safely identify circuits, hidden services, or the correct installation method, hire a qualified electrician.
What if the signal cable is too short?
Use a compatible cable approved for the TV and the in-wall route, if the manufacturer allows it. Do not add an unapproved join or pull the existing cable tight.
Can I hide the power kit’s connection behind drywall?
Keep connections accessible where required by the kit instructions and applicable code. Do not patch over a box or connection that must remain accessible.
(This article was written by one of our staff writers, Michael Holloway. Visit our Meet the Team page.)
