I want to put Ethernet sockets in my living room and in the bedroom directly above, connected by a cable that will run up the front exterior wall of the house. See the photo below (not my house) for how I'd like the cable to be positioned relative to the windows.
I want both sockets to sit just above the skirting board (proud, not chased in), and for the cable entry to be directly behind them, so no cable is actually visible inside the room. I also want the external cable run to be exactly vertical, with no diagonal slope or direction changes, so obviously both holes in the wall need to be exactly in line with each other.
If I drill the upstairs hole first, I can obviously mark up the internal side of the wall exactly how I want it and then use a plumb line outside to get the correct line on which to drill the downstairs hole - but how do I get the downstairs hole the correct height off the ground for the internal socket to be sitting in the right place just above the skirting board?
Do I just have to take measurements indoors using common reference points, like the edges of the windows, and then transfer those to the external side of the wall?
Logic says yes, that's the only way, but I thought I'd check, just in case there's some special builders' technique...
I want both sockets to sit just above the skirting board (proud, not chased in), and for the cable entry to be directly behind them, so no cable is actually visible inside the room. I also want the external cable run to be exactly vertical, with no diagonal slope or direction changes, so obviously both holes in the wall need to be exactly in line with each other.
If I drill the upstairs hole first, I can obviously mark up the internal side of the wall exactly how I want it and then use a plumb line outside to get the correct line on which to drill the downstairs hole - but how do I get the downstairs hole the correct height off the ground for the internal socket to be sitting in the right place just above the skirting board?
Do I just have to take measurements indoors using common reference points, like the edges of the windows, and then transfer those to the external side of the wall?
Logic says yes, that's the only way, but I thought I'd check, just in case there's some special builders' technique...
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