4” GRC conduit for all data drop in walls for a single CAT-5 (remodel of public building)
This reminds me of a church remodel about 13 years ago.. I was working for the campus radio station as an engineer at the time.
We needed to be able to run a 6 pair 22awg PIC telephone cable from the steam tunnels behind the building, into the basement A/V room. We asked for a single 3/4 or 1" conduit, and got a pair of 4".. talk about overkill..