Middle Atlantic CT.C.DT3.1-DG 2-Gang Under-Carpet AV Device Floor Box
Overview
The Middle Atlantic CT.C.DT3.1-DG is a 2-gang under-carpet floor box designed for AV signal routing without an integrated power module. Deployed in conference rooms, boardrooms, and open-plan presentation spaces where surface raceways are not acceptable, the CT.C.DT3.1-DG sits flat beneath carpet tile, providing a flush-mount access point for AV connectors — HDMI, DisplayPort, audio, USB, or similar low-profile signal inserts — while keeping the floor clean and trip-hazard-free. The no-power configuration is the right call when power is sourced separately (e.g., from an adjacent power floor box or ceiling drop), avoiding the cost and permitting overhead of a combined unit where signal-only routing is all that is needed.
Compatibility
The CT.C.DT3.1-DG is part of Middle Atlantic's under-carpet connectivity system and accepts standard 2-gang AV device inserts from the Middle Atlantic CT series. Compatible inserts include HDMI, DisplayPort, VGA, USB-A/C, 3.5mm audio, and blank cover plates sized for the 2-gang CT format. Verify insert compatibility against the Middle Atlantic CT series insert catalog before ordering — not all third-party keystone or Decora-format inserts are dimensionally compatible with the CT under-carpet frame. For installations requiring integrated AC power alongside signal, pair with the equivalent CT series power floor box rather than adapting this no-power unit.
Installation Notes
Designed for installation beneath low-pile carpet tile in finished commercial floor environments. The low-profile housing requires a routed or pre-cut floor channel for the conduit feed; confirm finished floor depth and carpet tile thickness are sufficient to fully recess the unit before rough-in. The 2-gang opening accepts standard CT series inserts secured with the provided retention hardware — do not force non-compatible inserts as the frame is not field-modifiable. Conduit entry points should be sealed per local code to prevent plenum migration where applicable.
