WiFi 7 is no longer a lab demo — Australian enterprise access points shipping in 2026 already support 802.11be, and the design assumptions that served WiFi 6/6E buildings for the last five years no longer hold. This article sets out what actually changes in a WiFi 7 design brief for an Australian commercial building, and where the real cost sits.
What 802.11be Actually Changes for Designers
WiFi 7 introduces three technical shifts that matter more to a cabling and containment designer than to an IT manager: 320 MHz channels in the 6 GHz band, Multi-Link Operation (MLO) allowing a client to use two or three bands simultaneously, and materially higher per-radio power draw. None of these are software updates layered onto existing infrastructure — each has a physical consequence upstream of the access point.
320 MHz channels only exist in 6 GHz spectrum, which the ACMA has progressively opened for Australian low-power indoor (LPI) use. That means a WiFi 7 deployment able to use its full channel width needs 6 GHz-capable access points sited with the same RF planning discipline used for 5 GHz today — but 6 GHz attenuates faster through concrete and glazing, so Australian tower floorplates with core-heavy layouts will typically need a higher AP density than a like-for-like WiFi 6E deployment, not a lower one.
Cabling and Containment: The Line Item Everyone Underestimates
The headline number to plan against is PoE draw. Tri-radio WiFi 7 access points with 6 GHz active regularly pull 25–30 W under load — solidly into 802.3bt Type 3/4 (PoE++) territory. For an Australian office fitout with a comms room switch budget locked in at design stage, this has two knock-on effects: switch selection needs PoE++ ports (not just PoE+), and the horizontal cabling run to each AP should be specified at Cat 6A minimum to avoid insertion-loss-driven power delivery problems over longer runs, which is now standard practice on new fitouts but still missed on refurbishment scopes that reuse existing Cat 6 cabling.
- Budget one Cat 6A run per AP location, home-run to the nearest floor distributor — do not daisy-chain or use consolidation points for WiFi 7 APs.
- Specify PoE++ (802.3bt Type 4, 90W) switch ports for any AP location expected to run tri-radio with 6 GHz enabled.
- Reserve ceiling-void clearance for slightly larger AP housings — several WiFi 7 enterprise models are physically larger than their WiFi 6E predecessors due to additional radio chains and heat dissipation needs.
- Re-run a predictive RF survey rather than reusing a WiFi 6E AP placement plan — 6 GHz coverage cells are genuinely smaller.
Channel Planning in the Australian 6 GHz Environment
Australia's LPI 6 GHz allocation gives enough spectrum for several non-overlapping 160 MHz channels, but very few buildings will get a clean run of 320 MHz without channel contention from a neighbouring tenancy or building — especially in dense CBD environments like Sydney's Barangaroo or Melbourne's Docklands where floor-to-floor and building-to-building RF leakage is common. A defensible design position for 2026 fitouts is to plan for 160 MHz channel operation as the reliable baseline, with 320 MHz treated as an opportunistic gain in isolated or standalone buildings rather than a guaranteed design capacity.
Multi-Link Operation and the Network Beyond the AP
MLO lets a capable client maintain simultaneous links across 2.4, 5 and 6 GHz for lower latency and better reliability during band congestion — but this is invisible to cabling and largely invisible to the wired network too, provided the AP's own uplink isn't the bottleneck. This is where a common design mistake surfaces: teams size the AP-to-switch uplink for WiFi 6E-era aggregate throughput and don't reassess it for WiFi 7's higher per-client peak rates. For high-density zones — trading floors, university lecture theatres, hospital emergency departments — a 2.5GBASE-T or 5GBASE-T uplink per AP is now the safer default rather than the 1 Gbps port that sufficed for the previous generation.
Design takeaway: WiFi 7 is a cabling and power project before it is a radio project. An Australian fitout that specifies WiFi 7 access points onto a WiFi 6-era containment and switch budget will under-deliver on day one.
Staging a WiFi 7 Upgrade in an Occupied Australian Building
For refurbishments rather than new fitouts, a phased approach usually works better than a wholesale swap. Start with a floor-by-floor RF and cabling audit against the checklist above, prioritise upgrades in high-density and executive floors first, and treat any comms room switch refresh as the forcing function — there is little value replacing access points onto switching that cannot deliver PoE++ or multi-gig uplinks. Most Australian commercial landlords sequence this work into base-building capital plans over 18–24 months rather than a single capital event.
Frequently Asked Questions
Do all WiFi 7 access points need 6 GHz-capable Cat 6A cabling?
Yes, in practice. Even where an access point can technically operate at Cat 6 with a slightly reduced power budget, Cat 6A is the sensible baseline for any new Australian installation because it removes power-over-distance risk and future-proofs the run for the next generation of PoE standards.
Is 6 GHz WiFi available across all of Australia yet?
The ACMA has approved low-power indoor 6 GHz use for WiFi, aligning broadly with international allocations, though the usable channel width can vary by location due to existing licensed users in some bands. A site-specific RF survey remains the only reliable way to confirm available channel width for a given Australian building.
Should we wait for WiFi 7 to mature before our next fitout?
For most commercial fitouts, no — specify WiFi 6E-capable infrastructure with WiFi 7-ready cabling and power headroom (Cat 6A, PoE++ switch capacity) so the access points themselves can be upgraded later without re-cabling the floor.