Is it not as simple as saying the majority of owners on that level can have carpet?
Not really. It’s common property, so all owners have a say it what is done with it. And then who is going to pay for it?
If you can come up with a plan that will cost the other owners nothing – or just the additional cleaning costs – then you will still need to get committee or owners corp approval at a general meeting if the committee doesn’t give you the thumbs-up.
But if the majority of owners on that floor are in agreement, that’s a pretty powerful case you can present.