Answering the search for extra deep outlet boxes, this guide highlights five well-suited options for deep wiring, remodeling projects, and installations that demand additional space. These boxes are ideal for homeowners, contractors, and DIY enthusiasts tackling complex wiring, high-capacity needs, or retrofit work. The following selections offer extra depth, robust safety certifications, and installation flexibility to fit diverse wall types and electrical configurations.
Summary table
| Product | Best For | Depth / Capacity | Safety / Certifications |
|---|---|---|---|
| HXH 1 Gang Ultra Deep PVC Old Work Electrical Box | Deep single-gang remodeling projects | 3.67″ deep, 20 cu in | ETL Listed |
| Sealproof 1-Gang Weatherproof In Use Outdoor Outlet Deep Cover | Outdoor, wet locations | 5-1/4″ deep | UL Extra Duty, NEC compliant |
| Legrand Wiremold 700 Series Extra Deep Box | Raceways and in-wall or above-floor installations | Extra Deep (box starts with a start box) | Brand trusted for raceways |
| Tokalonn 1-Gang New Work Outlet Box | New work drywall installations | 22 cu in | UL Listed |
| AIRTAK 1-Gang Old Work Electrical Outlet Box | Retrofit remodels with high fill demands | 20 cu in | ETL Listed, 2-hour fire rated |
HXH 1 Gang Ultra Deep PVC Old Work Electrical Box
This 1-gang ultra-deep old work box prioritizes safety and space. It is ETL certified, fire-resistant, and shock-proof, making it suitable for remodeling electrical outlets in drywall where extra depth is required. The box depth reaches 3.67 inches with a 20 cubic inch capacity, allowing deeper wiring and easier wire management. Best for: deep single-gang installations where standard boxes crowd wires or restrict conduit routing. Better for contractors and DIYers focused on high-capacity wiring in a single gang.
Limitations: It is designed for indoor use and drywall retrofits; consider exterior or outdoor-rated options for wet locations. The box’s primary value is depth and capacity, not weatherproofing.
Sealproof 1-Gang Weatherproof In Use Outdoor Outlet Extra Deep Cover
This weatherproof, in-use outdoor outlet box features a deep 5-1/4 inch profile, providing ample room for larger cables. Its patented multi-configuration design supports up to 18 configurations, including GFCI, duplex, switch, or round outlets. UL Extra Duty compliant for wet locations and NEC compliant, it is designed for exterior applications where protection against the elements is essential. Best for: outdoor outlets in wet or damp environments where a deep, configurable solution is needed. Better for projects requiring weatherproof coverage and flexibility. Caution: Ensure proper sealing and gasket installation to maintain weatherproof integrity.
Legrand Wiremold 700 Series Metal Raceway Extra Deep Box
Designed for heavy-duty raceway systems, this Legrand Wiremold extra-deep start box provides robust cable management for on-wall conduits and raceways. It is ideal when retrofitting into spaces where going inside walls is impractical due to tile, brick, or concrete. It includes fittings to enable unlimited wiring solutions and straightforward interconnection between raceways. Best for: commercial or residential applications requiring reliable raceway mounting and extra depth for complex wiring. Choose this if you prioritize compatibility with a full Wiremold system and strong on-wall support. Limitation: Not a standalone deep box for drywall retrofits; it serves as a starting point for raceway installations.
Tokalonn 1-Gang New Work Outlet Box
The 1-gang new work PVC box is UL Listed and designed for straightforward drywall installations. It offers 22 cubic inches of space, making it roomy enough for switches, outlets, dimmers, or GFCI receptacles. Its depth supports deeper circuitry or larger conductors, with a focus on retrofit and new construction installations. Best for: new work projects where a reliable, UL-listed box is needed for deep wiring and multiple devices. Better for builders aiming for a standard, durable PVC box with ample space. Limitation: May be less ideal for retrofits where wall thickness varies significantly without adjustable mounting features.
1-Gang Old Work Electrical Outlet Box, 20 cu.in.
This 1-gang old-work box provides a generous 20 cubic inches of internal volume with a 3.67″ depth, accommodating up to 10 conductors of 14 AWG, or 8 conductors of 12 AWG. It meets NEC fill requirements for multiple devices, including switches, outlets, dimmers, or smart devices. It is ETL listed with a two-hour fire rating, adding a safety margin for wiring projects. The box includes adjustable mounting tabs and rotatable locking buckles to fit varying wall thicknesses. Best for: retrofit projects that require a deep, high-capacity box and strong fire-safety credentials. Choose this if you need robust fire-rated protection and flexible installation. Caution: Ensure the wall surface is suitable for the mounting method and that cable routing does not exceed maximum fill limits.
Buying Guide: Extra Deep Outlet Box Considerations
What depth and capacity do you need?
Measure wall thickness and anticipate the number of conductors and devices. Deeper boxes provide space for large gauge wires and multiple cables, reducing crowding and heat buildup.
Where will the box be installed?
Indoor drywall retrofits differ from outdoor weatherproof installs. Choose ETL/UL certifications appropriate for the location and ensure proper gaskets and covers for outdoor use.
What certifications matter?
ETL and UL listings indicate compliance with safety standards. For outdoor use, look for extra-duty ratings and wet-location approvals as applicable to NEC codes.
Compatibility with devices?
Verify that the box fits standard switches, outlets, dimmers, and GFCI receptacles. Consider whether a new work (drywall) or old work (retrofit) design best matches your project.
Installation approach
Old-work boxes with adjustable tabs and locking buckles simplify retrofits. New-work boxes are easier for new construction but may need more planning for wiring routes.
Common buyer questions
- Which box provides the most internal space?
- Is weatherproofing essential for my project?
- Do I need a cover or gasket for outdoors?
- Can these boxes accommodate multiple devices?
- Are these boxes compliant with NEC wiring rules?
Key takeaways
- For deep single-gang remodels, the HXH and AIRTAK options offer substantial capacity and fire-rated safety.
- Outdoor locations demand weatherproof features and UL Extra Duty compliance, as seen with Sealproof’s deep weatherproof box.
- Wiremold and Tokalonn products suit raceway systems and new-work drywall installations, respectively, for broader wiring strategies.
Short FAQ
- What is the typical depth for extra-deep boxes?
- Are these boxes fire-rated?
- Can I use a deep box for multiple devices?
- What installation method is easiest for retrofits?
- Do these boxes meet NEC spacing and fill requirements?
- Are these products suitable for outdoor use?
In summary, choosing an extra deep outlet box depends on location, device requirements, and wiring complexity. The options above balance depth, capacity, and safety to fit common remodeling and installation scenarios. Use the buying guide to align your selection with practical needs and installation conditions.