We discussed this with the group, and think this is a good addition to Placement, as we don't have an "unstructured, in-the-room location" for gear that doesn't fit in the row/rack datacenter naming.
We'd like to find a more generic term than "(Floor) Tile" for this purpose, as we'd like to use a single property to hold this in-the-room location. Some folks will use floor tiles, while other may use posts or an X-Y system for in-room locations.
My thought would be to name this property using another synonym of location: area, position, spot or point.
My preference would be "Area" given the choices I was able to come up with...