WiFi 7 Mesh: How Many Nodes You Need and How Far Apart
Count mesh nodes from the distance to your farthest room: one per 20 to 30 ft, including the router, and no more than 50 ft apart on wireless backhaul. WiFi 7 does not stretch those distances. Here is how to plan a system and what WiFi 7 adds.
Short answer: Measure the distance from your router to the farthest room that needs WiFi, then allow one node for every 20 to 30 ft, counting the router as the first. A farthest room 55 ft away needs 2 to 3 nodes, or 3 with brick or plaster walls. Keep nodes no more than 50 ft apart on wireless backhaul. WiFi 7 does not stretch those distances: its widest channels run in the 6 GHz band, which has a slightly shorter range than 5 GHz.
To work it out with your own numbers, use the WiFi planner.
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How many mesh nodes do you need?
Go by distance before square footage. eero advises placing units 20 to 30 ft apart, never more than 50 ft, and putting each extra unit halfway between the router and the dead zone. That makes a chain: the router covers the first stretch and each extra node covers one more.
| Router to farthest room | Drywall or wood walls | Brick, plaster or concrete walls |
|---|---|---|
| 25 ft | 1-2 nodes | 2 nodes |
| 40 ft | 2 nodes | 2 nodes |
| 55 ft | 2-3 nodes | 3 nodes |
| 70 ft | 3-4 nodes | 4 nodes |
| 90 ft | 3-5 nodes | 5 nodes |
| 120 ft | 4-6 nodes | 6 nodes |
Counts include the router unit. The range comes from the 30 ft and 20 ft ends of eero's spacing; dense walls use 20 ft for both, because eero says homes with thick or dense walls may need more units.
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How far apart should mesh nodes be?
- eero: 20 to 30 ft apart, and no more than 50 ft from another unit when they connect wirelessly.
- TP-Link Deco: no more than 50 ft from another Deco unit.
- With Ethernet between nodes: both companies say spacing is more flexible, because nodes no longer rely on a wireless link to each other. Coverage still depends on the building.
Do not put a node in the dead zone itself. It can only relay the signal it receives there, so place it halfway between the router and the dead zone.
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What WiFi 7 changes in a mesh system
WiFi 7 is IEEE 802.11be. The Wi-Fi Alliance lists these as its main additions:
- 320 MHz channels, available in the 6 GHz band only, giving twice the throughput of WiFi 6.
- 4K QAM, about 20% higher rates than the 1024 QAM in WiFi 6.
- Multi-link operation (MLO), which balances traffic across links for more throughput and reliability.
These gains need WiFi 7 on both ends. A WiFi 5 or WiFi 6 laptop still connects to a WiFi 7 mesh, at its own standard. A WiFi 7 system makes the most sense if you have WiFi 7 phones or laptops now, or expect to soon.
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Does WiFi 7 mesh cover a bigger area?
No. No standard promises more range. HPE Aruba notes that the 6 GHz band has a slightly shorter range and is weakened more by obstacles, and that closed rooms can show clear differences in cell size between 5 and 6 GHz. Plan the same spacing, or closer, for a WiFi 7 system.
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Wired or wireless backhaul?
Backhaul is the link between nodes. eero notes that wireless links are typically slower and more prone to interference than wired ones, so Ethernet between nodes helps any WiFi generation. If you can run cable to only one node, run it to the node farthest along the chain.
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Walls and floors
eero names brick, stone and metal walls, and older plaster-and-lath walls, as hard for WiFi to cross. Floors cost signal too. ITU-R P.1238 lists about 5 dB of loss per floor in a house at 2.4 GHz and 7 dB at 5 GHz, and 14 to 16 dB through an office floor. If your home has more floors than the estimate has nodes, consider a node on each floor that needs strong coverage.
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Where to put each node
- Halfway between the router and the dead zone, not in it.
- About halfway between floor and ceiling, not on the ground and not inside a cabinet.
- With line of sight to the next node where possible.
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What about the coverage on the box?
A figure like "covers up to 5,000 sq ft" is the maker's number for good conditions, not a measurement of your home. TP-Link itself says range varies with the environment and has no fixed distance. The WiFi planner lets you enter a box figure, and uses it only if it calls for more nodes than the distance rule.
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FAQ
How many mesh nodes do I need for 2,500 sq ft? It depends on the shape more than the area. In a two-floor home where the farthest room is 55 ft from the router, the distance rule gives 2 to 3 nodes.
Can mesh nodes be 50 ft apart? That is the most eero and TP-Link allow on wireless backhaul. eero's normal spacing is 20 to 30 ft.
Is WiFi 7 mesh worth it? It is if you have WiFi 7 devices. Older devices still work, at their own speed. Ethernet backhaul helps any generation.
Do I need 6 GHz for WiFi 7? The 320 MHz channels are 6 GHz only. WiFi 7 also runs on 2.4 and 5 GHz.
Should a business use mesh? Offices that can run Ethernet usually size PoE access points instead. See mesh WiFi vs access points.
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Want a quote? Enter your numbers in the WiFi planner and its quote form sends them to our sales team, so you do not need to type them again. For a side-by-side of the standards, see WiFi 6 vs 6E vs 7.
Sources
- Where should I place my eeros? and How much distance should there be between eeros?, eero
- Deco range: coverage, placement, and tips, TP-Link
- Campus design: radio frequency design, HPE Aruba Networking
- Recommendation ITU-R P.1238-13, ITU-R
- Wi-Fi CERTIFIED 7, Wi-Fi Alliance
- IEEE 802.11be-2024, IEEE