A worked example, not a specific customer project — illustrative reference design showing how the pieces fit.
Hardware prices verified 16 July 2026. Ubiquiti pricing changes — we confirm current pricing on every quote. Prices are indicative CAD, all-in. Contact AVNFi for a current quote.
The scenario
A shop. Sales floor, a till, a fitting area or display aisles, a stockroom at the back, and a staff-only door between them. Customers get guest WiFi. Staff badge into the back.
Three jobs at once: see the till clearly, keep customers out of the stockroom, and give people WiFi without giving them the network.
The build
| Qty | Item | All-in each | Total |
|---|---|---|---|
| 1 | UDM-Pro — gateway + camera recorder, 1U | $588 | $588 |
| 1 | USW-Pro-24-PoE — 24-port PoE switch, 400W, 1U | $1,025 | $1,025 |
| 1 | G6 Pro 360 — 360° fisheye, sales floor | $771 | $771 |
| 1 | G6 180 — 180° panoramic, till and approach | $462 | $462 |
| 3 | G6 Turret — 4K cameras | $307 | $921 |
| 1 | UA-Hub-Door — stockroom door controller | $307 | $307 |
| 1 | UA-G3-Flex — NFC + keypad reader | $301 | $301 |
| 2 | U7 Pro — access points | $257 | $514 |
| Hardware total (indicative CAD, all-in) | $4,889 |
Not included: fail-secure strike and mechanical egress hardware (see the door section), drive, rack, cable, mounts, labour, Fluke certification. Priced separately.
Why each choice
UDM-Pro — gateway, firewall, WiFi controller, camera recorder, and Access controller in 1U. Records 8 cameras at 4K; you have 5. Guest WiFi segmentation is software and it’s included — no extra box.
USW-Pro-24-PoE — 400W, 24 ports, and critically 8 PoE++ ports, which is what the door hub needs. Your load is ~130W. You’re at a third.
The camera mix — this is the interesting part of a retail build:
| Where | Camera | Why |
|---|---|---|
| Till | G6 180 ($462) | 16MP, 180°, 7680×2160. The till is the camera that has to be right. You want the register, the customer side, and the approach in one frame — not three cameras that each caught half of a dispute. This is the one place to spend. |
| Sales floor | G6 Pro 360 ($771) | One fisheye covers the whole floor. 12MP, digital pan-tilt-zoom after the fact — so you zoom into recorded footage on the aisle that mattered. Replaces three or four Turrets and has no blind spots between them. |
| Entry, stockroom, back door | 3× G6 Turret ($307) | Conventional aimed views. 4K, IP66 so the exterior one’s fine, 30m night vision. |
Why not five Turrets for $1,535, saving $698? Because a till dispute is the whole reason the cameras exist, and “we have footage but the customer’s hands are out of frame” is worthless. And the 360 on the floor is fewer pulls and fewer blind spots than the four Turrets it replaces.
The stockroom door — UA-Hub-Door + UA-G3-Flex. Staff badge in; customers can’t wander in. Every entry is logged with a time and a name, which is most of the point in retail.
2× U7 Pro — one for the floor, one for the back. Guest WiFi runs on its own network, segmented from the till and the stockroom. Your customers get internet; they do not get your point-of-sale.
The door
Fail-secure strike + mechanical egress.
The stockroom door stays locked when power is lost — that’s the point of controlling it.
And that is exactly why it gets mechanical egress: a push bar or push pad that opens the door from the inside with no power, no network, no electronics. Nobody gets locked in a stockroom by a power cut. That is AVNFi’s design practice on every fail-secure door, and it isn’t optional.
Local building and fire code, and your Authority Having Jurisdiction, govern egress and must be confirmed for your specific door and occupancy. We design to this practice; the AHJ decides. Nothing here is code, legal or compliance advice.
Settle before install: is an existing deadbolt being replaced or supplemented? A deadbolt alongside a fail-secure strike is a second lock on the egress path.
Also: the door hub is rated 0–40°C — it goes inside the ceiling or the rack, not in an unheated loading vestibule. If the back door opens to the outside, the hub still lives indoors.
Power check
| Devices | Draw |
|---|---|
| 1× G6 Pro 360 @ 13.5W | 13.5W |
| 1× G6 180 @ 15W | 15W |
| 3× G6 Turret @ 12.5W | 37.5W |
| 2× U7 Pro @ 21W | 42W |
| 1× UA-Hub-Door @ 50W | 50W |
| 1× UA-G3-Flex @ 5W | 5W |
| Total | ~163W |
Against 400W: 41% loaded. Note again that the single door hub draws more than any camera — it’s rated for the lock current it passes.
What breaks if you undersize
A USW-Ultra-210W ($307) instead of the Pro-24. It cannot power the door hub. The Ultra family is PoE+ max, 30W per port; the hub needs PoE++ at 50W. No budget fixes a port-class ceiling. Saving $718 removes door access from the design entirely.
Five Turrets instead of the mix. Saves $698, and you lose the till coverage that justified the cameras. Wrong place to economise.
A UDR7 or UCG-Ultra as the gateway. The UCG-Ultra has no recorder at all. The UDR7 records one 4K camera — you have five. Neither works here.
Skipping guest WiFi segmentation. It’s free. It’s configuration. Customers on the same network as your till is a problem you’re choosing.
Skipping mechanical egress. Not a cost decision. See above.
Consumer TVs as a display. Consumer warranties generally exclude commercial-premises use. A consumer TV showing camera feeds in a shop can void its warranty. Commercial-rated display, or the Protect Viewport ($269).
The expansion path
| Want | Do | Cost |
|---|---|---|
| Cameras 6–8 | Ports, watts and recorder slots all there. | camera only |
| Camera 9+ | UDM-Pro’s 4K ceiling. Add a UNVR ($430), or start with a UDM-Pro-Max (15× 4K, $926). | $430+ |
| A second controlled door | Hub + reader. PoE++ ports already there. | ~$586 |
| Back gate / loading door | UA-Hub-Gate ($431) + opener integration. | Design 9 |
| A second location | Same design. Both sites in one UniFi console. | — |
| Licence plates in the lot | AI LPR (25.5W, PoE+). | see catalogue |
| Staff room / office WiFi | Third U7 Pro. | $257 |
| Power protection | Rack UPS. (UPS-2U Sold Out 2026-07-16 — confirm alternative.) | — |
The ceilings, in order: recorder (8× 4K) → ports (24) → watts (41%). Cameras first, as always. Everything else has room.
Prices indicative CAD, all-in, hardware at cost, labour separate. Ubiquiti reprices without notice; lead time ~7–10 days. Verified against ca.store.ui.com and techspecs.ui.com 2026-07-16.