GMRS gets recommended constantly as the easy family layer, and it is, but almost nobody talks about what happens to those same channels once every other family in the neighborhood has the exact same idea at the exact same time.
Everyone Has the Same Idea at the Same Time
A real disaster does not just affect your family, it affects your whole neighborhood or town at once. GMRS radios are cheap and common, so during an actual event, expect a lot of other households reaching for the same handful of default channels you were counting on being clear.
Why GMRS Gets Crowded Fast
FRS and GMRS only have so many channels, and most families default to the same one or two out of the box, usually channel 1 or whatever their radio ships preset to. In a widespread event, that channel becomes genuinely unusable, full of overlapping transmissions from people you don’t know and can’t coordinate with, exactly as covered in why GMRS won’t save you when SHTF.
Having a Second and Third Channel Ready
Pick your family’s primary channel deliberately, avoiding the obvious defaults, and pre-agree on a second and third choice to move to if the first is unusably crowded. Write all three down using the same PACE structure I cover in the key parts of a SHTF communications plan, applied specifically to channel selection instead of just service tier.
Etiquette Matters More, Not Less, When It’s Crowded
Keep transmissions short, identify clearly, and yield when someone else clearly has priority traffic, the same courtesy I cover in GMRS repeater etiquette. A crowded channel where everyone practices basic discipline still works far better than one where everyone talks over each other.
For the fuller picture on building real emergency communications capability, see my Emergency Communications and Preparedness pillar page.

