My house came with some empty conduits running between the rooms. They run room-to-room in series, emerging in an 86x86mm box in each room (standard UK size surface box).

My internet modem is in the living room at one end of the house and I want a wired connection for my desktop PC in the study at the opposite end of the house. The conduits to get there are as follows:

Living room box -> conduit -> washroom box -> conduit -> bedroom box -> conduit -> study.

What’s the best practice way to do this run? The total length is about 22m so I bought 25m of cable and all the tools to make and test my own ethernet terminations. I suppose the best for performance would be a single uninterrupted cable all the way from the living room to the study, but it doesn’t give much room for future expansion (in terms of wired connections in the interim rooms). At the same time I already have a reliable powerline network feeding WiFi throughout the house, (I’m only doing this upgrade for faster connection speed on my computer) so there’s no present need for any interim wired connections.

A compromise idea would be to run cables to each box, terminate in an RJ45 plug, then use a coupler (female/female RJ45) in each box to continue on the next leg.

My last idea was to install double ethernet faceplates in each box (one for the incoming cable and one for the outgoing one). Then for now I’d just bridge them with short patch leads into the faceplates in the interim rooms to get the signal all the way to the end. If in future I wanted to use that network point I could easily put a switch or router there instead of the patch lead. My only concern is the number of connections this would entail (one in the modem, one in the living room box, two in the washroom, two in the bedroom and one in the study).