Arlington BE1X X Large Box Extender

Solve recessed or oversized wall openings quickly with the Arlington Industries BE1X X Large Box Extender. This single-gang box extender levels and supports wiring devices — from duplex receptacles to data ports and security cameras — when existing boxes are set back from the finished wall. The BE1X expands the box up to 1-1/2" and features a larger flange to conceal miscuts, delivering a clean, code-compliant finish that saves rework and speeds installations. Constructed of durable white plastic and rated for 2-hour fire performance, it’s ideal for commercial, multi-family, and critical environments where safety and reliability matter. Use it on projects involving electrical back boxes & brackets, security and surveillance device mounts, or low-voltage network and monitoring terminations. Compact (2.33" x 4.63") and lightweight, the BE1X installs in minutes and reduces device wobble, improving long-term performance of outlets, switches, and low-voltage plates. Add the Arlington BE1X to your next retrofit or new-construction kit to keep installations fast, compliant, and professional — order now or specify it on your next security or networking project.

• Corrects oversized or miscut openings to provide a flush, professional finish for devices
• Extends recessed boxes up to 1-1/2" so outlets, switches and ports sit level with the wall
• 2-hour fire-rated construction for safer installations in commercial and multi-family projects
• Single-gang design with larger flange offers extra coverage and device support for retrofit jobs
• Lightweight white plastic that installs quickly, reducing labor time on security and networking runs