07/19/2026
BUILDLAB
7 min readWi-Fi 7 Is Now the Default Spec — Is Your Cabling Plan Still Built for Wi-Fi 6?
Wi-Fi 7 is fast becoming the default multifamily spec, but most cabling plans, PoE budgets, and IDF switches still assume Wi-Fi 6E. Here is what actually needs to change.
By the time most developers see “Wi-Fi 7” on an access point spec sheet, the decision has already been made for them. At least one major managed Wi-Fi provider now ships Wi-Fi 7 with multigig backhaul as its default spec for new multifamily construction — not a premium upsell — and other providers are moving the same direction. That means a growing share of the projects BuildLab designs cabling for in 2026 will land with Wi-Fi 7 APs on the punch list, whether or not the low-voltage plan was ever sized for what those APs actually need.
And that’s the part almost nobody is talking about. The wireless standard itself isn’t the risk. The risk is what it demands upstream — in the walls, the IDF closets, and the switch racks — long before a resident ever opens a laptop.
The Wireless Standard Was Never the Hard Part
Most of the Wi-Fi 7 content circulating right now is written for consumer router shoppers: channel widths, MLO, theoretical multi-gig speeds. None of that helps a GC or a low-voltage designer looking at construction documents today. The real story is that Wi-Fi 7 access points pull meaningfully more power and demand meaningfully more bandwidth than the Wi-Fi 6/6E gear most cabling plans, budgets, and switch schedules were designed around — and a lot of those plans haven’t caught up yet.
Power: PoE++ Isn’t Optional Anymore
Published max-power specs for current enterprise Wi-Fi 7 APs mostly land in the 35–42W range, but plan for up to roughly 50W once you account for tri-radio designs, IoT radios, and other features fully loaded. Standard PoE+ (802.3at), the workhorse of Wi-Fi 6 deployments, tops out at 30 watts per port — not enough headroom to run these APs reliably at their published max, let alone with margin for future features. The fix is PoE++ (802.3bt): Type 3 delivers up to 60W at the source, Type 4 up to 90W. If the switch schedule in your CDs still specs 802.3at edge switches, that’s a bottleneck baked into the building before the first resident moves in.
Cable: Cat6 Is No Longer the Safe Default
Higher wattage flowing through a cable bundle generates more heat, and heat is exactly what standard Cat6 handles worst in dense conduit runs carrying multi-gig data plus high-wattage PoE simultaneously. That’s why Cat6A — manufactured and thermally certified to handle bundled high-power PoE loads better than typical Cat6 constructions, and certified for 10GBASE-T out to 100 meters — is now the recommended minimum backhaul cable for Wi-Fi 7 AP runs. Cat6 still has a place in low-bandwidth, low-power applications, but as the default AP backhaul in a Wi-Fi 7 building, it’s increasingly considered undersized.
The Switch and the Uplink Have to Keep Up Too
A single 1 Gbps uplink is now explicitly called out as insufficient backhaul for Wi-Fi 7 APs at scale. The recommended baseline is multi-gig (2.5G/5G) switch ports with 802.3bt PoE support and at least 10GbE uplinks from the IDF back to the MDF — otherwise the access point is capable of speeds its own wired connection can’t deliver. It’s worth keeping expectations grounded here too: Wi-Fi 7’s headline 46.4 Gbps theoretical max, built on 320 MHz channels in the 6 GHz band, doesn’t show up in the real world. Real-world throughput commonly runs at roughly 2x or more over Wi-Fi 6 at close range — well short of the theoretical max — and dense apartment buildings only have three non-overlapping 320 MHz channels to work with. The gains are real. They’re just not the marketing numbers — which makes it even more important that the wired side isn’t the actual bottleneck.
What This Costs Depends on Building Vintage
For developers weighing new construction against renovation, the retrofit math splits cleanly by building age:
- Post-2010 buildings with existing Cat6 or fiber backbone: typically an AP refresh and possibly a switch swap — the lowest-cost path.
- 1990–2010 stock: usually needs edge-switch upgrades to PoE++ alongside new APs, even if some cabling can stay in place.
- Pre-2000 buildings running coax or Cat3: face full re-cabling to support Wi-Fi 7 properly — the most expensive tier, and one that should be scoped early, not discovered mid-punch-list.
Compliance Speeds Haven’t Caught Up Either
There’s a gap worth watching on the funding side too. Affordable-housing broadband compliance thresholds have historically been written well below current market expectations — CPUC’s CASF public-housing broadband program, for instance, raised its own benchmark to 100 Mbps down / 20 Mbps up back in March 2024, and other program-specific speed requirements can lag behind that. Meeting the letter of a program’s minimum broadband requirement doesn’t mean the network can actually support Wi-Fi 7-era resident expectations — worth confirming the current thresholds for your specific funding source early, especially in any affordable housing scope where the cabling plan and the compliance plan are being written by different people.
