9 And 12 Gang Surface Metal Back Box With Knockouts For Wall Mounted Electrical Devices And Retrofit Projects

Designed for professional electricians and ambitious DIYers, this 9- and 12-gang surface metal back box with knockouts provides a robust, ready-to-install enclosure for wall-mounted electrical devices. It streamlines retrofit and new-build projects by letting you mount multiple outlets or switches in a single, secure box on the wall surface.

• Gang configurations: 9-gang and 12-gang options in a single metal back box to consolidate multiple devices in one tidy enclosure.
• Surface-mount design: Quick, secure installation directly onto wall surfaces, ideal for retrofit work and areas where recessing isn’t possible.
• Durable metal construction: Sturdy steel back box that provides rigidity and protection for wiring and mounted devices.
• Knockouts for flexible wiring: Pre-scored knockouts on multiple sides with removable plates to accommodate conduit or cable entries exactly where you need them.
• Alignment and mounting features: Built-in guides and mounting points help ensure a neat, level installation and easy device alignment.

This back box is designed to simplify wiring layouts in spaces such as hallways, utility rooms, offices, or classrooms. By choosing the 9-gang or 12-gang option, you can plan ahead for current needs and future expansion without swapping boxes, reducing installation time and the number of wall penetrations. The knockouts enable clean routing of cables, while the sturdy metal housing protects connections from dust, impact, and accidental strain.