How does what3words deal with multiple floors (and height)?
Edited
A what3words address works at ground level, just like a street address does – so it doesn’t work for different floors in a building or at different heights.
If you want someone to find a specific entrance within a building of multiple floors, we recommend giving a what3words address for the building’s main entrance. That’s the location people need to find first. You can then add the relevant floor, flat or office information.
For example, what3words HQ is at ///filled.count.soap on the third floor, Studio 301.