Best Electrical Boxes for Concrete Wall Installations and in-Wall TV Setups
Choosing the right electrical box for concrete walls is essential for safe, organized, and code-compliant installations. This guide highlights five top options that balance durability, ease of installation, and flexible cable management. From in-wall TV boxes to old-work and on-wall conduit solutions, you’ll find assemblies that accommodate power, data, and AV connections behind concrete surfaces.
| Product | Brand | Type | Key Benefit |
|---|---|---|---|
| In-Wall TV Box with Flange | Dremica | In-wall recessed box | Ample space for multiple cables behind a wall-mounted TV |
| TVL508-1 Low Profile TV Box | ARLINGTON | Low-profile shallow-wall box | Fits shallow drywall for TV installations |
| XGGYA Old Work Box 1 Gang | XGGYA | Old-work plastic junction box | Easy retrofit into existing walls |
| XIUTE 1-Gang PVC Old Work Box | YQXIUTE | 1-gang PVC old-work box | Adjustable mounting and insulation-friendly design |
| Legrand Wiremold Starter Box | Wiremold | On-wall conduit starter box | Flexible cable management for concrete blocks and tile |
In-Wall TV Box With Flange For Wall Mounted TV
The Dremica in-wall box is designed to accommodate a wall-mounted TV setup with integrated cable management. It offers ample space for multiple devices, including sound systems, satellite or digital video recorders, and cable connections. The recessed design hides the box behind drywall and concrete paneling, delivering a clean, flat television wall appearance. Features include dual outlets and brush openings for HDMI, Ethernet, and low-voltage cables, plus an ENT entrance for clean cable routing. This makes it suitable for retrofit or new-construction builds where a structured, concealed power solution is needed behind a TV wall.
TVL508-1 Low Profile Box For Shallow Walls
ARLINGTON’s TVL508-1 is a compact option for shallow drywall applications, offering a 1/2-inch or 5/8-inch drywall fit with a 1.25-inch box depth. This makes it suitable for TV installations where wall depth is limited. The package includes the box and a UL-listed decorator-style receptacle, delivering a straightforward path to power and AV placement behind thin-wall assemblies. While compact, it remains a practical choice for light-to-moderate cable loads behind wall-mounted displays in concrete-framed constructions.
XGGYA Old Work Box 1 Gang
XGGYA’s old-work plastic junction box is designed for retrofit projects. It includes built-in fixing ears with a rotatable buckle to help secure the box during installation and prevent movement over time. The box supports a compact 4-1/3 inch length by 2-1/5 inch width by 2-3/4 inch depth footprint, with a design that accommodates 14 AWG to 7/14 or similar conductors via snap-on connections. It’s positioned as a practical solution for updating existing walls without extensive demolition, especially in concrete structures where space behind drywall is constrained.
XIUTE 1-Gang PVC Old Work Box
The XIUTE 1-Gang PVC old-work box provides a 14 cubic inch capacity in a small, durable plastic shell. It weighs 88 grams and measures at 110mm by 73mm with a depth of 57.3mm, making it suitable for standard single-gang outlets or switches. The unit is not conductive, reducing grounding requirements, and features a flange plus adjustable installation labels for easy alignment in existing walls. Live hinges enable straightforward access to cables, supporting neat installations in concrete-wall environments where retrofitting is common.
Legrand Wiremold Starter Box, Extra Deep
Legrand Wiremold’s Starter Box is an extra-deep on-wall conduit starter designed for more substantial cable runs behind concrete walls or tile. It serves as a conduit connector point, enabling reliable cable management for power and data while maintaining a clean wall profile. The box is part of a broader Wiremold system and supports a range of fittings to connect raceways in residential or commercial installations. It’s well-suited for situations where wiring must be routed inside walls or along surfaces with sturdy, durable raceway solutions.
Leviton 2-Gang Concrete Floor Box System
The Leviton concrete floor box system is designed for 2-gang functionality in concrete floors, especially where outlets or data ports need centralized, durable housings. This box supports a complete floor-box setup with the appropriate finish plate (sold separately) and connector reducers to accommodate both power and data. While primarily used in floors, its rugged PVC construction and deep cavity can inform other concrete-wall applications where discreet, heavy-duty access is required for wiring and devices in durable environments.
LEONLITE 12 Pack One Gang New Work Box
LEONLITE’s 12-pack of one-gang new-work electrical outlet boxes offers expansive capacity for larger projects, including switches, outlets, GFCI devices, and integrated step lights. The boxes are ultra-deep at 22.5 cubic inches, designed for non-metallic sheathed cables and compliant with ETL standards. This option supports pre-planning and bulk stocking for multiple outlets behind concrete walls, enabling consistent hardware choices and faster on-site installation when planning entire walls or rooms around concrete structural constraints.
Buying Guide: Key Purchase Considerations
When selecting an electrical box for concrete walls, consider the following factors to ensure safety, compliance, and long-term performance.
- Box type and wall compatibility: Choose in-wall boxes for hidden installations, old-work boxes for retrofit projects, or on-wall conduit solutions when hidden routing is impractical behind concrete.
- Depth and volume: Ensure the box offers sufficient cubic inches for the intended devices and cable bundles. Deeper boxes reduce the risk of crowding wires and improve heat management.
- Material and durability: PVC/PC plastics are common for retrofit boxes; metal options offer higher rigidity in high-traffic areas but may require grounding and additional protection in concrete walls.
- Cable management features: Look for brush grommets, built-in cable clamps, ENT entrances, and integrated brackets to tidy HDMI, Ethernet, low-voltage, and power cables.
- Code compliance and labeling: Verify ETL or UL listings, and ensure the box is suitable for in-wall or in-concrete installation as required by local electrical codes.
- Installation ease: Adjustable mounting tabs, screw-on brackets, and rotatable buckles can significantly reduce installation time and improve alignment in uneven or concrete substrates.
- Future-proofing: If you anticipate expanding connections, select a box with extra capacity or that accommodates modular data and power outlets.
- Surface versus concealed routing: If aesthetics are critical, prioritize recessed or in-wall options that keep outlets and cables out of sight behind TV chases or wall panels.
In selecting the best electrical box for a concrete wall, balance the need for clean aesthetics, reliable cable management, and straightforward installation with the anticipated load of devices and future upgrades. The products listed above cover a spectrum from low-profile TV installations to robust raceway-based solutions, helping you meet both practical and regulatory requirements in American homes.