For most homes, the answer to how many UniFi access points do I need is one per 1,000 sq ft (95 m²) of living space, rounded up, with at least one on every occupied floor. That is Ubiquiti’s own planning number. A 900 sq ft apartment needs one, a 2,000 sq ft two-story house needs two, and a 3,000 sq ft house needs three. Brick, concrete or plaster interiors push those counts up.
The datasheets are more generous, rating single models at 1,250 to 2,000 sq ft. That gap is where disappointing installs come from: one U6 LR mid-house in a two-story, and one bar in the back bedroom.
What does the coverage figure on a UniFi datasheet mean?
It is the area one AP can reach in favorable conditions, not the area it will serve well through your interior walls. Ubiquiti’s UniFi WiFi FAQ says most of its APs cover 1,000 to 2,000 ft² and recommends at least one AP per 1,000 ft² (95 m²), because walls and obstacles degrade signal. Treat the datasheet as the ceiling and the FAQ as the planning number.
Here is what Ubiquiti publishes for the current indoor lineup:
| Model | Radios | Rated coverage | Rated clients | Max draw |
|---|---|---|---|---|
| U6 Lite | 2.4/5 GHz, 2x2 | 115 m² (1,250 ft²) | 300+ | 12 W |
| U6+ | 2.4/5 GHz, 2x2 | 140 m² (1,500 ft²) | 300+ | 9 W |
| U6 Pro | 5 GHz 4x4, 2.4 GHz 2x2 | 140 m² (1,500 ft²) | 250+ | 13 W |
| U6 LR | 2.4/5 GHz, 4x4 | 185 m² (2,000 ft²) | 350+ | 18.5 W |
| U7 Lite | 2.4/5 GHz, 2x2 | 115 m² (1,250 ft²) | 200+ | 13 W |
| U7 Pro | 2.4/5/6 GHz, 2x2 | 140 m² (1,500 ft²) | 300+ | 21 W |
| U7 Pro Max | 5 GHz 4x4, 2.4/6 GHz 2x2 | 160 m² (1,750 ft²) | 500+ | 25 W |
Two things fall out of that table. The spread between ratings is only 750 sq ft, so no model replaces a second AP in a two-story house. And range is two-way: clients transmit at lower power than the AP, so a long-range AP mostly extends where devices show bars, not where they get good throughput in both directions.
How do you count APs for your floor plan?
Divide total living area by 1,000 sq ft and round up, then correct for floors, walls and busy rooms. In order:
- Base count. 2,400 sq ft becomes three APs; 1,800 sq ft becomes two.
- At least one AP per occupied floor. Joists, subfloor, ductwork and plumbing absorb a lot of 5 GHz. In a wood-frame house, a basement-ceiling AP and a top-floor AP can sometimes cover the floor between them. With concrete decks or radiant-heat slabs, plan one per floor without exception.
- Wall material. Drywall on wood or steel studs: keep the count. Brick, block, poured concrete, plaster on metal lath, foil-faced insulation or a tiled bathroom core in the middle of the plan: add one AP to any floor where signal must cross two or more of those to reach a room you use.
- Busy rooms. A home office with a NAS and two video calls, or a living room with a TV, a console and four phones, should sit close to an AP. Ubiquiti’s Maximizing Wireless Speeds article treats a large number of active clients on one AP as a bottleneck and recommends adding APs to spread them out.
- Outdoor space. A ceiling AP pushing through an exterior wall and low-E glass rarely serves a patio, detached garage or pool deck. Plan a separate outdoor-rated AP.
Before buying, model the result in the next-generation UniFi Design Center Ubiquiti announced in September 2026. It imports a floor plan from an image or PDF, generates walls, and proposes AP locations and a channel plan from the client-capacity zones you set. Calibrate the plan’s scale against a real measurement first.
How many APs do common home sizes need?
One for a small apartment, two for most 1,800 to 2,000 sq ft homes, three for 2,400 to 2,800 sq ft, and five or more for large plaster or masonry houses. Applied to typical floor plans:
| Home | Floors | Construction | APs | Placement |
|---|---|---|---|---|
| 900 sq ft apartment | 1 | Drywall | 1 | Ceiling, central hallway |
| 1,100 sq ft L-shaped condo | 1 | Poured concrete | 2 | One in each leg of the L |
| 1,800 sq ft ranch | 1 | Drywall | 2 | Toward opposite ends, never side by side |
| 2,000 sq ft two-story | 2 | Wood frame | 2 | One per floor, near the middle of each |
| 2,400 sq ft two-story | 2 | Wood frame | 3 | Two on the busier floor, one on the other |
| 2,800 sq ft with finished basement | 3 | Wood frame | 3 | One per floor |
| 3,500 sq ft older house | 2 | Plaster on metal lath | 5–6 | Two or three per floor |
Add one outdoor AP to any row for a patio or detached garage. Then buy the second AP before the bigger one: two U6+ or U7 Lite units on separate cable runs beat a single U7 Pro Max in the stairwell. The best UniFi access point for home guide matches models to these profiles, and U6 Lite vs U6 Pro covers when a 4x4 radio earns its price.
Should the extra AP be meshed or wired?
Wired, whenever you can get a cable to it. Ubiquiti’s wireless mesh guidance calls hardwiring the ideal method for performance and stability, recommends a maximum of two wireless hops, and asks for at least -60 dBm between a meshed AP and its parent. Its speed guide puts the cost at about 50% of throughput per wireless hop. For counting purposes, a meshed AP is worth half a wired one.
The -60 dBm requirement is the catch: a meshed AP that hears its parent that well sits fairly close to it, which caps how far it can extend coverage, and its backhaul shares airtime with both APs’ clients. Mesh is for the detached garage or the room you cannot fish a cable to.
Wiring every AP means one PoE port each: a U7 Pro draws up to 21 W and a U7 Pro Max up to 25 W, so three U7 Pro Max units need 75 W before cameras. The best UniFi switch for a home network guide sizes that budget, and if an AP lands on a different subnet from the controller, adopt it manually with set-inform or DHCP option 43.
What signal level should every room hit?
-67 dBm or better on 5 GHz, in every room where someone sits with a device. Cisco’s best-practices paper for Apple clients sets -67 dBm or better as the optimal cell edge for iOS devices. Apple’s roaming documentation explains why: an iPhone or iPad holds its current AP until RSSI crosses -70 dBm (a Mac waits until -75 dBm), then only moves to a candidate 8 to 12 dB stronger. A room that reads -72 dBm is where phones cling to the wrong AP.
Measure from the devices you actually use, standing where you use them:
# macOS: RSSI, noise, channel, Tx rate
sudo wdutil info
# Linux: signal in dBm, current bitrate
iw dev wlan0 link
# Windows: signal as a percentage, not dBm
netsh wlan show interfacesUbiquiti’s WiFiman app does the same on a phone. Then put load on the weakest room. Run an iperf3 server on a wired machine (it listens on TCP 5201) and test both directions:
# wired host at 192.168.1.20 on 192.168.1.0/24
iperf3 -s
# from the weakest room: upload, then download
iperf3 -c 192.168.1.20 -t 30
iperf3 -c 192.168.1.20 -t 30 -RIf download holds up and upload collapses, the AP is louder than the client can answer. The fix is an AP closer to that room, not more transmit power. Finally, walk between floors with ping -i 0.2 192.168.1.1 running against the gateway and watch for loss during the handoff.
When do more access points make Wi-Fi worse?
When they end up sharing channels. In the US, 2.4 GHz has three non-overlapping 20 MHz channels (1, 6 and 11), so a fourth AP shares 2.4 GHz airtime with one of the first three, and your neighbors are already on those channels too. Four APs at High power in a 2,000 sq ft house produce heavily overlapping cells, sticky clients and lower throughput than two well-placed ones.
Ubiquiti’s speed guide recommends High or Auto transmit power, which suits a single AP or cells that are genuinely far apart. In a multi-AP house, turn 2.4 GHz down first: it travels furthest and overlaps the most, and lowering it nudges dual-band clients toward 5 GHz. The full method is in access point placement and channel planning, and minimum RSSI and BSS transition are covered in UniFi advanced wireless settings.
6 GHz is the exception. It loses range faster than 5 GHz through walls and floors, so whole-home 6 GHz needs more APs, closer together. Size the count on 5 GHz and treat 6 GHz as a bonus near each AP; Wi-Fi 6E access points and the UniFi 6 GHz lineup covers which models carry it. If the count checks out and Wi-Fi still feels slow, work through UniFi Wi-Fi speed and latency troubleshooting before buying anything.
FAQ
can one unifi access point cover a whole house
Yes, if it is a single floor of about 1,000 sq ft with drywall interiors and a ceiling-mounted AP near the middle; open-plan layouts can stretch toward the 1,250 to 1,500 sq ft Ubiquiti’s datasheets list for most models. Two-story houses and masonry interiors usually need a second AP.
is one unifi access point per floor enough
It is enough on floors of about 1,000 sq ft or less with drywall or wood-frame walls. Larger floors, or floors with brick, concrete or plaster-on-lath walls, usually leave the far rooms below -67 dBm on 5 GHz. Mount each one on the ceiling near the middle and measure the corners.
do wifi 7 access points cover more area than wifi 6
No. Ubiquiti rates the U7 Pro at 1,500 sq ft, the same as the U6 Pro, and the U7 Lite at 1,250 sq ft, the same as the U6 Lite. Wi-Fi 7 adds wider channels and Multi-Link Operation, not reach. Your AP count only rises if you want 6 GHz in every room.
how many devices can one unifi access point handle
Ubiquiti rates its current APs at 200+ to 500+ clients each, but that is an association limit, not a performance target. Every client on a radio shares its airtime, so in a home the practical limit is how many devices are busy at once. Give busy rooms their own AP.
Related across the network
- UniFi Home Network Setup: What to Buy First — ubiquitiguide.com
- UniFi Adoption Failed: How to Fix Stuck Devices — ubiquitiguide.com
