Finding a sturdy, metal 2-gang outlet box is essential for safe and organized electrical installations. This guide reviews five durable, metal 2-gang options, highlighting material quality, mounting features, and suitability for indoor and outdoor use. Each product includes key specs and mounting considerations to help you choose the right box for your project. The selections prioritize corrosion resistance, knockouts, and compatibility with standard duplex receptacles and switches. Read on to compare options from trusted brands and make an informed decision for your next wiring job.
Summary of chosen products
| Product | Brand | Key Benefit | Ideal For |
|---|---|---|---|
| AP-12088 4″ Square 2-Gang Box With Exposed Work Cover | Airmont Products | Crushed corners; ready for exposed work | General interior wiring |
| YQSIYU 2-Gang Metal Electrical Box | YQSIYU | UL listed; versatile knockouts | Residential/commercial installations |
| ENERLITES Weatherproof 2-Gang Outlet Box | ENERLITES | Weatherproof; three threaded holes | Outdoor/moisture-prone areas |
| 2-Gang Duplex Receptacle Cover – Airmont | Airmont Products | Raised, compatible with 4″ boxes | Exposed-work applications |
| Sigma Engineered Solutions 14352 2-Gang Box | Sigma Engineered Solutions | Weatherproof, ample capacity | Outdoor or tough environments |
AP-12088 4″ Square 2-Gang Box With Exposed Work Cover

This 4″ square metal box uses a drawn construction and is designed for exposed work applications. The package combines a 4″ square electrical box with a 4″ square two-gang duplex receptacle exposed work cover. Its crushed corners eliminate the need for bonding jumpers, simplifying installation. Features include ten 1/2″ and six 3/4″ knockouts, a raised ground, and a depth of 1-1/2″. This setup is well-suited for standard two receptacle or switch configurations in non-drywall installations, providing solid mounting and reliable protection for connections.
YQSIYU 2-Gang Metal Electrical Box

Made of galvanized steel, this UL-listed 2-gang metal box emphasizes safety and stability. It features multiple knockouts on sides and bottom (including 8 half-inch and 4 quarter-inch options), making it adaptable for various receptacle and switch configurations. The UL certification helps ensure compliance in spaces with strict safety requirements, while compatibility with most sockets supports flexible installations in both residential and commercial settings.
ENERLITES Weatherproof 2-Gang Outlet Box

Designed for outdoor and moisture-prone locations, this two-gang weatherproof box houses switches or receptacles in challenging environments. It features three 0.50″ threaded holes for secure mounting and a die-cast metal construction that seals against moisture, dust, debris, and insects. Use cases include warehouses, pool houses, garages, patios, and other exterior areas where reliable protection is essential.
2-Gang Duplex Receptacle Cover – Airmont

This 4″ square raised cover is designed for exposed-work installations and complements 4″ square boxes. The raised profile provides a finished look and helps conceal wiring behind a duplex receptacle, while the raised design can aid in moisture and dust protection when paired with the right box. Compatibility with double duplex configurations makes it a practical choice for multi-outlet setups.
Sigma Engineered Solutions 14352 2-Gang Box

This weatherproof 2-gang box offers three 3/4″ knockouts and a capacity of 31.0 cu. in. It’s designed to serve as a junction for conduits or to house up to two wired devices such as a receptacle or a switch. Includes a pre-installed ground screw, closure plugs, mounting lugs, and two No. 8-32 UNC-2A x 0.25″ self-tap screws for straightforward mounting in outdoor or damp environments.
Buying Guide: Key Purchase Considerations
- Location and environmental exposure: Choose weatherproof or outdoor-rated boxes for damp or exterior installations; indoor boxes suffice for dry environments.
- Material and durability: Galvanized steel offers corrosion resistance and strength; consider reinforced boxes for heavy-duty applications or fire-rated walls.
- Knockout configuration and capacity: Ensure the number and size of knockouts match your wiring plan; larger boxes provide flexibility for more devices or splices.
- Mounting and compatibility: Verify compatibility with standard 4″ square boxes or 2-gang layouts; confirm support for required devices (receptacles, switches, or combination units).
- Sealing and protection: Look for gasketed or sealed faces if moisture intrusion is a concern; a raised cover can improve protection in exposed work settings.
- Code compliance: Check UL or other certification marks to ensure the box meets local electrical codes and safety standards.
- Installation ease: Features like pre-punched holes, simple grounding screws, and included mounting hardware can reduce installation time and effort.
Selecting a 2-gang metal outlet box involves weighing environmental needs, device requirements, and installation complexity. The options above emphasize durability, weather resistance, and versatile knockouts to accommodate a range of receptacles and switches. For interior projects, standard 2-gang boxes with sufficient capacity may be preferred, while outdoor or moisture-prone installations benefit from weatherproof designs and sealed enclosures. Always verify compatibility with your specific devices and follow local electrical codes for safe, compliant installations.