Back Boxes

Every switch, socket, and electrical fitting mounted in a wall or partition needs a back box behind it - the metal or plastic enclosure that creates a flush-fitting recess, protects the wiring, and provides a secure mounting point for the front plate. At the DIY Hardware Store, our back boxes range covers the depths and configurations most commonly needed in domestic and light commercial electrical installations.

Back boxes are available in metal (usually galvanised steel) and plastic, in single gang and double gang formats, and in various depths to accommodate different volumes of cable and wiring. The depth you need depends on the fitting being used - a standard light switch needs far less depth than a double socket with RCD protection, for example. Selecting the correct depth prevents wiring from being compressed or forced into tight bends that can damage insulation over time.

Whether you're installing new sockets in a kitchen refurbishment, adding a double gang switch in a hallway, or replacing back boxes that have cracked or corroded in an older property, getting the right specification is straightforward. Our range at the DIY Hardware Store covers the most widely used sizes for standard UK single and double sockets, switches, and data plates, with flush and surface-mount options available.

  • Metal and plastic back boxes for switches and sockets
  • Single and double gang formats
  • Multiple depths to suit different electrical fittings
  • Flush and surface-mount options
  • Suitable for domestic and light commercial installations
  • Compatible with standard UK electrical plates and fittings