I do stream some media over the network but itís going to be mainly by WiFi so I wasnít sure if cat6 at 10Gbps really gave me any advantage?
APs connected over a wired backbone will give you a much more stable and reliable network than APs connected by wireless backhaul.
A wired link gives you fixed, guaranteed speeds, and it works in both directions simultaneously. With wifi, every device takes it in turns to transmit, and they can accidentally stomp on each other (as can interfering devices). The wired backhaul reduces wireless issues to just the main client to AP link, which is easier to debug.
Note that cat6 won't run at 10Gbps unless the equipment at both ends is 10GBASE-T: and today, very little is.
For 1Gbps, technically you only need cat5e, which will do 1Gbps up to 100m. Cat6 is a bit more rigid and a little harder to terminate, but is "future proofed" in the sense that it can do 10Gbps over 27m (if you later upgrade your equipment). For longer distances you would need Cat6A, which works up to 100m for 10Gbps.
Therefore, if you can get cat6 at roughly the same price as cat5e, you might as well take the cat6; but don't pay a huge premium.
The best way to design this is a "star" topology: each floor has its own separate Cat5e/Cat6 cable to a central area, and you put a switch there. This means that each floor's access point has a direct connection to the switch, not going through multiple hops (aka "daisy chain"). Daisy chain networks are less reliable and harder to debug. Also, if you put a PoE switch at the centre, you can directly power all your APs from it, avoiding the need for power bricks on each floor.
I found Netgear GS110TP works very well - 8 ports of PoE, although not PoE+ which some APs require. They have some other models with PoE+ but more expensive.
Edited by candlerb (Mon 13-Jan-20 08:24:44)