Hide Wires on Brick Walls (Mortar Clip Tracks)

To route a cable neatly across a brick wall, use a surface-mounted track secured with anchors approved for the actual masonry. A decorative mortar clip is not automatically a wiring raceway. For power wiring, choose a listed, voltage-appropriate surface raceway and follow its instructions, the cable requirements, and local code. Keep boxes accessible, protect cables from damage, and check the wall before drilling.

A loose cable can make a carefully arranged room feel unfinished, like a picture frame hung with its backing exposed. On brick, the fix is not always to tuck a wire into a mortar joint. A neat, safer route starts with identifying the cable, choosing a suitable track, and fastening it to sound masonry.

The phrase “mortar clip” can describe different products. Some are simple cable holders; others are parts of a track system. Neither appearance nor a snug fit proves that a product can contain wiring. I separate the job into two decisions: how to support the route on the brick, and whether the track is approved for the type of wiring inside it.

Plan the Route and Identify the Wiring

Start by mapping the cable path and identifying every cable’s type and voltage. A speaker lead, data cable, and mains wiring do not have identical requirements. The track must suit the wiring use and location, while the route must avoid damage, inaccessible connections, and conflicts with other services.

Before buying clips or drilling, note the cable’s markings and where it begins and ends. If you cannot tell whether a cable is low voltage or mains wiring, do not guess. Ask a qualified electrician or the cable supplier to identify it.

Measure the route from the device to the outlet or connection point. Keep it as short and straight as the room allows, but avoid sharp turns that could pinch a cable or force a tight bend. Mark the planned line with removable tape, then check how the track will meet boxes, corners, and the wall edge.

Also check the track label and instructions. A surface raceway is an enclosure designed and listed for specified wiring uses. A row of open clips or a decorative channel may only support or cover a cable; that does not make it a permitted raceway for mains conductors.

Speaker or data cable: Use a track intended for that cable and the installation location. Follow the cable’s bend and handling limits.
Mains wiring: Use a listed surface raceway suitable for the voltage and wiring method. Do not put an extension cord inside a wall or treat decorative clips as a raceway.
Mixed wiring: Do not assume one track permits power and communications wiring together. Follow the product listing and applicable separation rules.

Check Wall Condition, Access, and Required Clearances

Brick and mortar vary in strength, age, and condition, so inspect the intended anchor points before installation. The track’s instructions and local code govern the work; a cable-support rule written for wood framing does not set mortar-clip spacing or masonry-anchor depth.

Look for loose brick, crumbling mortar, cracks, damp areas, and old holes. A fastener in weak material may not hold, even if it feels tight at first. Do not cut out mortar or force an oversized anchor into a joint to make a clip fit. If the wall is damaged or the route crosses an uncertain area, pause and get advice from a masonry or electrical professional.

Before drilling, consider hidden wiring, pipes, and other services. Use a suitable detector where appropriate, but do not treat a detector as a guarantee. If you cannot confirm the route is clear, change the path or have the area checked.

Keep junctions and splices accessible. NEC 314.29 requires boxes to remain accessible without removing building parts or damaging the finish. A track cover does not make a hidden splice acceptable. Check any required separation or barrier between different wiring types; do not assume the track provides one unless its listing and instructions say so.

A few familiar code numbers are often misapplied:

NEC 300.4(A)(1) addresses cables passing through or parallel to wood framing. It generally calls for a 1¼-inch setback from the framing edge or a specified steel protection plate at least 1⁄16 inch thick. This is not a masonry anchor rule.
NEC 334.30 generally requires NM cable support within 12 inches of a box or fitting and limits support intervals to 4½ feet, subject to exceptions. These are NM-cable support rules, not universal track spacing or mortar-clip ratings.
No universal spacing or load rating applies to mortar clips. Follow the selected track and anchor maker’s published limits for the specific substrate.

Choose a Track and Anchors for Brick

Select the track for the cable and the installation, then select anchors for the wall material and condition. A listed surface raceway may be required for mains wiring, while a simple cable track may suit certain low-voltage cables. The product instructions should state permitted use, fastening method, and spacing.

A useful comparison is not “which clip looks strongest?” but “what is this product approved to do, and what surface is it made to attach to?”

Option	Best fit	Check before use
Open cable clips	Supporting a compatible low-voltage cable where the cable may remain visible	Clip size, cable protection, and the maker’s fastening instructions
Decorative covered track	Hiding compatible cable on the wall’s surface	Whether it is only a cover or is listed for the wiring use
Listed surface raceway	Routing wiring types permitted by its listing, including suitable power applications	Voltage, conductors, fill, fittings, covers, and required barriers
Mortar-joint clip	A product specifically designed for the cable and joint conditions stated by its maker	Whether it is only a holder; never infer raceway approval from its shape

For brick, use the anchor type and size specified by the track or fastener manufacturer for the actual masonry. Solid brick, hollow brick, and mortar joints are not interchangeable anchor bases. A manufacturer’s spacing limit is product-specific; do not copy a spacing from another clip or track.

Consider how the track will look at corners and at the equipment end. A neat route depends on clean transitions as much as on the straight run. Check that the cover can close without pressing on the cable and that the selected fittings match the track system.

Anchor the Track and Install the Cable

Lay out the full route first, then fasten the track using the maker’s approved anchors and spacing. Fit the cable without crushing it, scraping its jacket, or forcing a tight bend. Keep the track open for inspection until you have checked the cable path and all connections.

Mark the track line and anchor points using the product’s instructions. Confirm the track will not block a box, outlet, or access panel.
Drill only where the wall is sound and the route is clear. Use the drill bit and anchor method specified for the chosen fastener and masonry.
Secure the track without overtightening. A damaged track, stripped anchor, or cracked brick is a reason to stop and reassess, not to add force.
Place the cable inside the track. Respect the cable maker’s bend guidance and the track’s fill limit. Do not pinch the jacket beneath a cover or let an edge rub against the cable.
Fit bends, joins, and end pieces made for that system. Do not improvise a sharp turn that compresses the cable or leaves it exposed to damage.

For mains wiring, use only the wiring method permitted by the raceway listing and local rules. A listed raceway does not make every cable suitable for it. Do not conceal an ordinary extension cord in a track or behind a wall. If the work involves adding or extending building wiring, confirm permit and inspection requirements with the local authority or a licensed electrician.

Verify Protection, Access, and Compliance

Before closing the track, inspect the anchors, cable, fittings, and boxes. Confirm that the cover engages as designed and that no connection becomes inaccessible. For regulated electrical work, follow local permit and inspection rules; a tidy finish is not proof of a compliant installation.

Check the finished route from end to end:

Anchors match the wall material and the track maker’s instructions.
The track is secure, undamaged, and within its published spacing and load limits.
Cable jackets show no cuts, pinches, sharp bends, or abrasion.
Covers and fittings close correctly without pressing on the cable.
Splices and junctions remain accessible in approved boxes.
Any required separation between wiring types is maintained.
The installation matches the product listing and local code.

If a cover will not close, do not force it. The track may be too small, overfilled, or incompatible with the cable. Select a suitable system rather than compressing conductors or leaving a gap that exposes them to damage.

Installation Scenarios: What Changes on Brick?

The right detail depends on the wall, cable, and track, not on a universal clip recipe. These examples show how I assess common routes: first identify the wiring and substrate, then match the product instructions to the conditions instead of assuming all brick walls or clips behave alike.

A low-voltage speaker cable along a solid brick wall: I would check the cable’s size and route, then choose a compatible surface track and anchors approved for that masonry. If the track is only a cover, I would not describe it as a raceway or use it for wiring beyond its stated purpose.

A power route from a mounted device: I would first check whether the plan uses existing wiring or proposes extending building wiring. For mains conductors, the track must be a listed, voltage-appropriate raceway, and the wiring method must be permitted. If those details are unclear, I would stop before drilling and ask an electrician.

A wall with crumbling mortar: I would not rely on a mortar clip or place a larger fastener into a weak joint. The route may need to shift to sound brick, if the track maker allows that installation, or the wall may need assessment before work continues.

Common Mistakes to Avoid

Most problems start when a product is chosen by appearance or when a code rule is taken out of context. Treat clips, anchors, raceways, and cable supports as separate parts with separate limits. If any product’s intended use is unclear, verify it before installation.

Do not treat a mortar clip as an electrical enclosure or listed raceway.
Do not bury mains conductors in a mortar joint or hide them behind an unlisted clip track.
Do not use NEC framing clearances as a guide to masonry-anchor spacing.
Do not assume NM cable support rules set the spacing for a surface track.
Do not cut mortar, overload a track, or exceed the anchor maker’s limits to force a route.
Do not close over an inaccessible splice or junction.

A clean installation is one that protects the cable as well as hiding it. When the product instructions, cable type, and wall condition do not line up, choose a different route or get qualified help.

Frequently Asked Questions

These answers address common questions about surface cable tracks on brick. Always check the exact product instructions and locally adopted code, since track approvals, wiring rules, and permit needs can vary by product and location.

Can I hide a wire in a mortar joint?

No. A mortar joint is not a wiring raceway, and a clip in the joint does not provide an approved enclosure for mains conductors. Keep wiring in an appropriate surface system or use another code-compliant method.

Are mortar clips safe for TV wires?

They may support some cables if the product is designed for that cable and installation. They are not automatically a raceway. Check the clip’s intended use, cable fit, and fastening instructions before using it.

Can a mortar clip track carry power wiring?

Only if the system is listed and approved for that wiring use and voltage. A decorative track or open clip is not enough. Use a suitable listed surface raceway and follow its instructions and local electrical rules.

How far apart should clips be on brick?

There is no universal spacing for mortar clips on brick. Follow the track or clip manufacturer’s published spacing and load limits for the specific masonry. Do not substitute NEC NM-cable support intervals for those instructions.

Should I anchor into brick or mortar?

Use the anchor location and method specified by the track or fastener maker for your wall. Brick and mortar differ in strength and condition, so neither is a default choice. Avoid weak or damaged areas.

Does NEC 334.30 set track spacing?

No. NEC 334.30 covers support rules for NM cable, including general support intervals and support near boxes, subject to exceptions. It does not establish a universal spacing for surface tracks or mortar clips.

What does the 1¼-inch rule apply to?

NEC 300.4(A)(1) concerns cable near wood framing members. It generally specifies a 1¼-inch setback or a steel protection plate at least 1⁄16 inch thick where that rule applies. It is not a brick-anchor measurement.

Can I put a splice under a track cover?

Do not make a splice inaccessible. NEC 314.29 requires junction and splice boxes to remain accessible. Use an appropriate box that remains accessible, and follow applicable wiring rules.

Can I use an extension cord in a surface track?

Do not assume a track makes an extension cord suitable for concealed or fixed wiring. For a permanent power route, use a wiring method and raceway approved for that purpose. Ask an electrician if the correct method is uncertain.

What if the brick or mortar is crumbling?

Stop before installing anchors in the damaged area. Do not compensate with oversized fasteners or cut out mortar to force a clip into place. Reassess the route and consult a qualified installer if the substrate cannot safely hold the system.

(This article was written by one of our staff writers, Michael Holloway. Visit our Meet the Team page.)