ᐅ Network cable routed from one room to another through a drywall partition wall

Hello everyone,

Unfortunately, the planning for the power outlets and LAN cables wasn’t optimal. I need a LAN connection in a living room, but the outlet is located in a completely different part of the room. On the other side of the wall is the children’s room, and there is a LAN outlet right there. The walls are drywall, each 1.8 cm (0.7 inches) thick. I was considering making a hole with a hole saw and using a cable duct (see photos) to push the LAN cable, still plugged into the socket in the children’s room, through to the adjacent room.

Would this create a problem with sound transmission, so that conversations from the next room are clearly heard in the children’s room because both walls are opened up and separated only by the cable opening? Or is this negligible (it should be the same with the power outlets in both walls)?

Thanks in advance!

By 1.8cm (0.7 inches), do you mean the individual paneling on both sides? Is there a double socket with two cables or a single socket on the children's room side?
- Remove the network socket
- Drill a small hole through the cavity wall box toward the living room
- Install a cavity wall box in the living room
- Reroute one or both cables from the children’s room to the living room
- Install a network socket in the living room
- Replace the network socket in the children's room with a blank cover or close unused ports with blanking plugs

Yes, the issue of sound transmission can be intensified as a result. However, it depends on the overall situation of the room (windows, doors, etc. — all elements that reduce sound insulation).
Specifically, for electrical boxes, you can use decoupled or soundproof boxes, such as the "blue ones" from K..., to address this problem.
Drywall manufacturers also provide installation guidelines in their datasheets to ensure that no reduction in sound insulation is expected.