Best 2 Gang Smart Box Solutions for Modern Electrical Upgrades
Looking for a reliable 2-gang electrical box that accommodates smart switches, outlets, or multi-device setups? This guide highlights five top 2-gang boxes suited for remodels, new work, and retrofit projects. Each option is evaluated for compatibility, ease of installation, and space for wiring. Ideal buyers include DIY homeowners upgrading a single room, professional electricians handling multi-device installs, and renovators needing flexible, depth-adjustable or expandable boxes.
| Product | Best For | Key Benefit |
|---|---|---|
| SmarToggle Two Gang Retrofit Wall Box | Remodels and smart-home upgrades | Secure 1-1/2″ toggles for flush mounting |
| Arlington F102 2 Gang Screw Mount Device Box | Stud-mounted, secure installations | Remountable and adjustable for wood/steel studs |
| AIRTAK 2-Gang Adjustable Electrical Box | New work and remodels with large capacity | 34 cu in capacity with living hinges |
| XIUTE 2-Gang PVC Old Work Retrofit Box | Budget-friendly retrofit projects | Non-metallic, easy to install with live hinges |
| OneBoxForAll Old Work BaseBox | Expandable space for growing devices | Expandable to fit evolving wiring needs |
SmarToggle Two Gang Retrofit Wall Box

The SmarToggle Two Gang Retrofit Wall Box is designed for stud or no-stud mounting, making it versatile for remodels and multi-device smart installations. It uses 1-1/2″ snap toggles that secure firmly for a flush, reliable fit. With seven wiring ports and a 3/4″ knockout, it handles complex wiring while maintaining a clean wall profile. This box is best for homeowners or technicians upgrading spaces with multiple smart devices or a mix of switches and outlets. A potential limitation is the depth required for deeper wiring or larger devices, so verify wall cavity space before installation.
Arlington F102 2 Gang Screw Mount Device Box

The Arlington F102 2 Gang Screw Mount Device Box focuses on fast, secure mounting to studs, suitable for new constructions or retrofit projects where wall thicknesses vary. Its adjustable/removable One Box approach helps installers secure it after the wall is prepared, and angled screws inside the box provide a solid connection. It’s best for those who need a robust, stud-mounted solution. The box supports NM cable connectors and upholds a dependable mounting standard, though some users may prefer modern plastic options for extra weight savings.
Southwire MSB1G One Gang Device Box

Note: This option is a one-gang box rather than two-gang. It’s included here for contrast in space planning, showing how some boxes balance capacity with footprint. It offers flexible mounting and rapid installation, which is helpful when upgrading a single circuit or adding a single device in a tight space. For a strict two-gang need, consider alternatives that provide dual-gang capacity without compromising depth or organization.
AIRTAK 2-Gang Adjustable Electrical Box

The AIRTAK 2-Gang Adjustable Electrical Box offers a roomy 34 cu in capacity, designed specifically for two-gang applications. It accommodates various wire configurations (17/14, 15/12, or 13/10 AWG) and features living hinges to ease cable entry. This makes it well-suited for multi-device installs, including two switches or a duplex receptacle with additional devices. A potential limitation is that non-metallic PVC can be less rigid than metal boxes, which may affect stiffness in heavy-duty installations.
XIUTE 2-Gang PVC Old Work Retrofit Box

The XIUTE 2-Gang PVC Old Work Retrofit Box is a budget-friendly option for retrofit projects. It uses a non-metallic shell, reducing grounding requirements and simplifying installation in existing walls. It’s designed for two-gang use with straightforward installation, including a flange and adjustable installation label. It’s best for quick upgrades or lighter-duty installations but may offer less rigidity or long-term durability compared with metal boxes in high-traffic or high-voltage environments.
OneBoxForAll Old Work BaseBox

The OneBoxForAll Old Work BaseBox is an expandable double-gang PVC solution that can be enlarged with an expansion ring to accommodate more devices. It features 32 cu in of capacity and four wings for added stability. This choice is ideal for projects where the device count may grow, such as future smart switches or additional outlets. A caveat is that expansion may require a specific ring or accessory to extend beyond the default two-gang capacity, which should be planned in advance.
Buying Guide: How to Choose Your 2-Gang Box
What should you consider when selecting a 2-gang box for smart devices?
- Wall type and mounting style: Do you need stud-mounted, retrofit, or expandable options?
- Box capacity: Are you wiring two devices with moderate gauge wires, or planning for larger 14/2 or 12/2 runs?
- Depth and space: Is there enough wall cavity depth to accommodate deep smart switches or multiple devices?
- Material: Plastic non-metallic boxes are lighter and corrosion-resistant; metal boxes offer rigidity and grounding potential.
- Future expansion: Do you anticipate adding more devices later? Consider expandable or modular designs.
- Code and compliance: Ensure ETL/UL listings and local code compatibility for the installation.
What’s the best fit for your project?
- Best for remodels with flexibility: SmarToggle Two Gang Retrofit and OneBoxForAll Old Work BaseBox.
- Better for stud-heavy walls and secure mounting: Arlington F102 2 Gang Screw Mount.
- Best when large wiring capacity is needed: AIRTAK 2-Gang Adjustable Electrical Box.
- Best budget-friendly retrofit option: XIUTE 2-Gang PVC Old Work Retrofit Box.
How to plan wiring with a 2-gang box
Map each device’s wiring needs before installation. Group hot, neutral, and ground conductors to minimize crowding. Use the recommended knockouts for cable routing and maintain adequate clearance for device terminals. Always power off at the breaker before starting and verify there is no existing damage or moisture inside the box area.
Installation tips for a clean finish
- Dry-fit devices to ensure a flush surface before permanent mounting.
- Label cables where possible to simplify future maintenance or upgrades.
- Use the provided mounting screws and ensure a solid attachment to the stud or wall framing.
FAQ
- What is a two-gang box? A two-gang box is a wall box that accommodates two standard devices, such as switches or outlets, in a single wall opening.
- Can I install a smart switch in a two-gang box? Yes, provided there is enough space for the device’s depth and wiring within the box’s capacity.
- Is expandable two-gang boxes better for future upgrades? They can be, especially when you plan to add more devices later, as they offer flexible room for extra wiring.
- What mounting method should I choose? Choose stud-mounted for rigidity, retrofit boxes for existing walls, or expandable boxes for growing device sets.
- Do all boxes support both 14/2 and 12/2 wiring? Most listed options support common residential gauges; verify the box specifications to confirm compatibility with your wiring.
- Are these boxes ETL listed? Several options shown include ETL-listed or UL-listed certification in their product descriptions; always verify listings on the product page.