That’s correct Cat6 maxes out at 10Gb on short runs. It’s also a case that there’s an issue with heat, trying to push 10Gb over wire - usually exhibited in the SFP+ transceivers, switches and such, which is reduced with 6A and better.

In 10 years time, will you wish you had made the minimal additional investment in 6A over 6 when speeds increase and your wires are all behind sheetrock or plaster? I’ve already done multiple build-outs in commercial and homes, and I’m well aware of how quickly these wiring jobs become obsolete. So I won’t even touch anything below Cat6A today.

Addendum: the heat issue that causes 10Gb copper wire SFP+ transceivers to burn out is why I’m running fiber - significantly cheaper running costs too.

Surprised at all the recommendations for Cat6. That’s fine for Gigabit. Houses are already being serviced by fiber with speeds that exceed Gigabit speeds, so the minimum I would suggest in 2023 is Cat6A.

I am currently in the same situation but missed the wiring deadline so I am going to end up running OM4 fiber (10/40/100 Gigabit) under carpets for the office/living room/bedroom. Small SFP+ switches are available for reasonable prices now, so you can have a fast 10Gb trunk to service each floor and take 2.5Gb from them.