For most indoor environments, access points should be placed 40 to 50 feet apart, and no more than 60 feet apart. That’s the standard recommendation from enterprise networking manufacturers like HPE Aruba, which suggests one access point per 2,500 square feet as a baseline. But the real answer depends on your building materials, the WiFi band you’re using, and what you need the network to do.
The General Spacing Rule
A single access point broadcasting on the 2.4 GHz band can reach roughly 150 feet indoors, while the 5 GHz band drops to about 50 feet. That raw range is misleading, though, because “reachable signal” and “usable signal” are very different things. A connection that technically exists at 120 feet may be too weak for a video call or even basic web browsing.
Enterprise design guidelines recommend spacing APs 40 to 50 feet apart, with 60 feet as the absolute maximum. At that distance, the coverage areas of adjacent APs overlap enough that devices can hand off smoothly as you move through a building. For location-tracking systems, Juniper Networks recommends even tighter spacing of 32 to 49 feet between units.
One important minimum: don’t place two access points closer than about 26 feet (8 meters) in the same room. Putting them too close creates interference that actually degrades performance rather than improving it.
Why Overlap Matters
The coverage areas of neighboring access points should overlap by 15 to 20 percent. This overlap zone is what allows your phone or laptop to switch from one AP to another without dropping the connection, a process called roaming. Without enough overlap, you’ll hit dead zones or experience brief disconnections as you walk between rooms.
For the handoff to work well, the signal from the next access point needs to be significantly stronger than the minimum usable level. A good rule of thumb: when your device is at the edge of one AP’s reliable range, the next AP should be delivering a signal at least 10 to 15 dB stronger than the roaming threshold. In practice, that means the APs need to be close enough that you’re never truly at the fringe of both simultaneously.
Voice and video applications are the most demanding. Reliable voice calls require a stronger signal than simple data browsing, so if you’re deploying WiFi for a call center or conference rooms, err on the closer end of the spacing range.
How Walls and Building Materials Change the Math
The 40 to 50 foot guideline assumes typical office construction. Heavier building materials can cut that distance dramatically. Here’s how much signal common materials absorb on the 5 GHz band:
- Drywall: about 1 dB of loss, essentially negligible
- Standard glass: about 1 dB of loss
- Brick: 15 dB of loss
- Thin concrete (4 inches): 22 dB of loss
- Thick concrete (8 inches): 48 dB of loss
- Reinforced concrete (8 inches): 55 dB of loss
A single brick wall between two access points can cut your effective range by more than half. Two concrete walls can essentially block the signal entirely on the 5 GHz band. If your building has concrete or brick interior walls, plan on placing an access point in each room or section rather than relying on signal passing through.
At 6 GHz (used by WiFi 6E and WiFi 7), the losses are even higher. Reinforced concrete absorbs 63 dB at that frequency, compared to 31 dB at 2.4 GHz. The tradeoff is that the 6 GHz band is far less congested, so even with shorter range, it often delivers better real-world speeds.
WiFi 6E and WiFi 7 Need Tighter Spacing
Testing by Excentis confirmed that 6 GHz coverage is noticeably smaller than 5 GHz coverage in real-world conditions, exactly as physics would predict. Higher frequencies lose energy faster as they travel through air and materials. If you’re deploying WiFi 6E or WiFi 7 access points and want devices to use the 6 GHz band, plan for closer spacing than you’d need with older standards.
The upside is substantial. The 6 GHz spectrum is clean, with no legacy devices competing for airtime. So while you may need more access points, each one delivers faster, more consistent connections. For new deployments, this is generally a worthwhile trade.
Co-Channel Interference
Placing access points closer together creates a different problem. When neighboring APs broadcast on the same channel, they interfere with each other. At the recommended 50 to 70 foot spacing with 15 to 20 percent overlap, co-channel interference is already a significant drain on throughput across the network.
The solution is channel planning. On the 2.4 GHz band, only three non-overlapping channels exist (1, 6, and 11), which limits how many APs you can place near each other without interference. The 5 GHz band offers many more channels, and 6 GHz offers even more, making denser deployments practical. If you’re adding access points to improve coverage, make sure neighboring units are set to different channels, or use APs that handle channel selection automatically.
Mounting Height and Ceiling Concerns
Access points work best when mounted 9 to 15 feet above the floor, typically on or just below the ceiling in standard commercial spaces. At that height, the signal radiates outward in a broad pattern that covers the most floor area.
Ceilings higher than 15 feet create problems. The signal has to travel farther to reach devices at desk or pocket height, which reduces the effective horizontal coverage radius. Warehouses, auditoriums, and open atriums typically need a custom design with APs mounted lower on walls or poles rather than on the ceiling itself. Mounting APs above a drop ceiling (hidden in the plenum space) is also not recommended, as ceiling tiles absorb signal.
Mesh APs Have Shorter Limits
If your access points connect to each other wirelessly rather than through Ethernet cables, the spacing limits shrink considerably. A wireless mesh backhaul has to maintain a strong connection between APs, not just between APs and client devices. Current WiFi 7 long-range mesh units max out at 50 to 65 feet between each other in open environments. Pair a long-range unit with a smaller one and the limit drops to 30 to 35 feet, because the weaker device becomes the bottleneck.
Hard-wired access points (connected to your network via Ethernet) don’t have this constraint. They can be placed based purely on client coverage needs. For any deployment where you have the option, running Ethernet to each AP gives you more flexibility and better performance than mesh.
Practical Starting Points by Space Type
- Standard office with drywall: 40 to 50 feet apart, one AP per 2,500 square feet
- Office with brick or concrete walls: one AP per enclosed section, placed so no wall blocks the path to clients
- Open floor plan or warehouse: 40 to 50 feet apart, mounted 9 to 15 feet high
- Home (2,000 to 3,000 sq ft): two to three APs, centrally located on each floor
- Outdoor open area: 50 to 65 feet for WiFi 7 long-range units, 30 to 40 feet for standard models
These are starting points. The most reliable way to confirm your spacing is to test signal strength at the midpoint between two APs after installation. If your devices are getting a strong, stable connection at that midpoint, your spacing is right. If the signal dips noticeably, move the APs closer together or add one in between.