Every plant expansion or new build we cable in Wisconsin comes with the same question from the GC or the IT lead: "Just use Cat6, right?" Sometimes yes. Often no. Here's how we decide.
The short answer
| Use case | Recommended |
|---|---|
| Office drops, VoIP phones, basic Wi-Fi 5/6 APs | Cat6 |
| Wi-Fi 6E or Wi-Fi 7 APs | Cat6a |
| Verkada / cloud cameras with PoE++ heaters | Cat6a |
| 10 GbE to workstations or machine controllers | Cat6a |
| Runs near VFDs, welders, or motor banks on a plant floor | Cat6a (shielded) |
| Runs over 180 ft / 55 m at sustained 10 GbE | Cat6a |
What Cat6 actually does
Cat6 supports 10GBASE-T, but only up to 55 meters (~180 ft). Beyond that you're back to 1 Gbps. For most office drops that's fine — patch panel to desk is rarely more than 100 ft.
Cat6 also handles PoE+ (30W) comfortably. It does not officially support PoE++ Type 4 (90W) over long runs without heat derating.
Where Cat6a earns its keep
Cat6a is rated for the full 100 m (328 ft) at 10 GbE, handles PoE++ Type 4 (90W) without thermal issues, and the shielded variants (F/UTP or S/FTP) cut EMI dramatically.
On a Wisconsin manufacturing floor, that last point matters. We've troubleshot enough flapping ports near VFDs, plasma cutters, and big motor banks to make shielded Cat6a our default on the production side — even when the IT team only needs gigabit today.
The PoE++ argument for outdoor cameras
If you're putting heated outdoor cameras on a Wisconsin facility (and you should — the heaters keep the dome clear of ice), the camera plus heater can pull 50–80W. That's PoE++ Type 3 or Type 4 territory.
A Cat6 run pulling 60W will warm noticeably inside a packed conduit. Cat6a's larger conductors and tighter twist handle the heat without degrading the signal.
The cost difference is smaller than people think
In 2026 pricing for a typical commercial install:
- Cat6 plenum bulk cable: ~$0.32/ft
- Cat6a plenum bulk cable: ~$0.55/ft
For a 200-drop Cat6 project averaging 150 ft per run, a typical install lands around $60K–$80K all-in (cable, jacks, patch panels, labor, and Level 3 certification testing). Cat6a runs higher — the cable upcharge alone adds roughly $7,000, plus more labor for the larger, stiffer cable.
When we still recommend Cat6
- Pure office space with no plans for Wi-Fi 6E/7 in the next 5 years
- VoIP-only drops in conference rooms and reception
- Tight remodel budgets where the conduit and labor are already a stretch
What we install at Wisconsin manufacturing sites by default
For new plant builds and major expansions, we standardize on:
- Cat6a shielded (F/UTP) for everything on the production floor
- Cat6a UTP for the office side
- OM4 multimode fiber for backbone runs between IDFs and the MDF
This gives the customer a 10–15 year cabling plant that won't need to be re-pulled when they swap to Wi-Fi 7 APs, add cameras, or put 10 GbE on the CNC controllers.
If you're scoping a build or expansion, we'll do a free pre-construction walk and put a number on both options. Schedule a call.