Cat-6 vs Cat-6A for a Perth home: which do you actually need?

When you’re getting data points run in a Perth home, you’ll be asked to choose between Cat-6 and Cat-6A cable. The names are nearly identical and the marketing makes Cat-6A sound essential. For most homes, it isn’t. Here’s the plain-English version.

The short version

• Cat-6 comfortably handles gigabit internet and supports 10 Gbps over the shorter runs found inside a typical house. It’s the sensible default for most homes.
• Cat-6A guarantees 10 Gbps over the full 100 metres and has heavier shielding. It’s worth it for long runs, a demanding home office, or maximum future-proofing.

Both are a major upgrade on relying on Wi-Fi alone.

What’s actually different?

The meaningful differences come down to three things:

Speed and distance

Cat-6 supports 10 Gbps, but only up to around 37–55m depending on conditions. Beyond that it steps down to gigabit. Cat-6A guarantees 10 Gbps all the way to 100m. In a normal house, almost no run is long enough for that distinction to matter — but in a large two-storey home in somewhere like Landsdale or a long run out to a studio or shed, it can.

Shielding

Cat-6A has better shielding against interference (crosstalk). In a typical home that isn’t a problem, but it’s a plus in dense cable bundles or near sources of electrical noise.

Thickness and cost

Cat-6A is thicker, stiffer and pricier — both the cable and the slightly more involved termination. In tight wall cavities that thickness occasionally matters.

So which should you choose?

Here’s the practical guide:

Situation	Recommendation
Standard home, gigabit internet	Cat-6
Long runs (large/two-storey home, shed, studio)	Cat-6A
Serious home office / video work	Cat-6A to that room
Future-proofing, building new, “do it once”	Cat-6A
Most rooms + one premium room	Mix: Cat-6 + Cat-6A where it counts

There’s no wrong answer here — both will outperform Wi-Fi for anything stationary. The goal is to spend where it makes a difference and not where it doesn’t.

The bigger win: going wired at all

Whichever category you pick, the real upgrade is moving stationary devices off Wi-Fi. Perth homes are mostly double-brick, and those solid walls absorb wireless signal — which is why a single router leaves dead spots. A wired Cat-6 or Cat-6A point gives a desktop, smart TV, console or work-from-home setup a fast, stable, low-latency connection that doesn’t drop mid-meeting.

If you’re building or renovating, running the cable while the walls are open is dramatically cheaper than retrofitting later.

The bottom line

For most Perth homes, Cat-6 is the right call — it’s fast, capable and cost-effective. Step up to Cat-6A for long runs, a home office, or peace-of-mind future-proofing. Either way, you’ll wonder how you put up with Wi-Fi-only for so long.

See what a full install involves on the data networking & structured cabling page, or tell us about your place and we’ll recommend the right cable for each run.