How to Plan Wi-Fi Channels on 2.4, 5 and 6 GHz

Step by step

1. 2.4 GHz: use 1, 6 and 11 only

   These are the only non-overlapping 20 MHz channels in most regions. Never use 40 MHz on 2.4 GHz in business networks.

2. 5 GHz: pick channel width by density

   Use 20 MHz in very dense halls, 40 MHz in offices and 80 MHz where few access points overlap. Include DFS channels where allowed.

3. 6 GHz (Wi-Fi 6E/7): use the clean spectrum

   Where regulations allow, 6 GHz offers many wide channels. 160 or 320 MHz suits low-density premium areas.

4. Reduce transmit power

   Lower power on dense deployments so cells are smaller and channels can be reused. Match AP power roughly to client devices.

5. Validate

   Walk the site with a survey app and look for co-channel overlap and coverage holes. Adjust and retest.