I did a house that has wire mesh in the walls to hold the plaster in place and, of course, I was told that everyone wants to do things via WiFi. I may have said something like "Good for you" or "Well, life is full of little disappointments", but that was a few years ago. I explained why that would be difficult, especially since everyone uses Apple computers and hand-held devices, then looked for ways to hard wire access points. I found a phone jack in the Master Bedroom that was surface-mounted and that annoyed me to the point of wanting to flush-mount it just because that was a giant sign of the ATT installer's laziness and since it's a fine old home, it has no place. Sure enough, I removed the surface mount box and found a hole in the base molding that was more than large enough for a keystone insert to fit into. When I looked at the cable, I found that it had four pairs, but none were twisted the same as the Cat5e I have seen, but I needed to find a cable, so I punched it down, toned it and tested the speed with my computer via ethernet cable- it did over 40Mbps, which was the high end of what their plan specified, so I used it. I have heard of phone cable (Cat3) that worked for ethernet, so it seemed like a reasonable thing to attempt.

Cat5e was originally for 10/100 networks, but when I took a networking class in 2006, tests had shown it would do gigabit up to about 100 feet, as long as the cable wasn't abused.

I never thought I should need to learn to ask questions in a way that the search engine needs, especially after working with someone who was extremely good at programming and explaining that search engines are just 'sort programs' ('sort' used as a verb). Include what you need to find, or you won't find it.