It's tempting to assume more satellites always means better coverage, but the right number depends heavily on your home's layout, not just its square footage.
Coverage by layout, not just size
An open floor plan of a given square footage generally needs fewer satellites than the same square footage broken into many small rooms and hallways, since walls and doors are what actually degrade signal — open space carries wifi much further with less obstruction.
A rough starting guide
- Small apartment or single floor, open layout: router alone or one satellite is often enough
- Mid-size home, multiple rooms per floor: one to two satellites
- Larger home or multiple floors: two to three satellites, roughly one per floor or major wing
- Very large or oddly-shaped homes: may need additional satellites beyond a standard kit
Signs you actually need to add a satellite
- A speed test shows a significant drop in a specific room compared to near the router
- A room consistently shows an amber light or drops connection despite reasonable distance
- You've already tried repositioning existing units without meaningful improvement
The diminishing returns warning
Adding satellites beyond what your layout actually needs doesn't just waste money — it can occasionally add unnecessary backhaul overhead without meaningfully improving coverage, since the weak spot may be a placement issue rather than a genuine "not enough hardware" problem. Try repositioning first before assuming you need to buy another unit.
Frequently asked questions
Is it better to buy a bigger kit upfront or add satellites later as needed?
Adding as needed is often more cost-effective, since you can identify your actual weak spots through real use rather than guessing upfront.
Do satellites need to be evenly spaced throughout the home?
Not necessarily evenly spaced — they should be positioned based on where signal actually weakens, which depends on your specific walls and layout rather than a uniform grid.