We’ve got a room in the house that is tiled red and white. I think it’s OK. But it has been suggested that it should be carpeted. So eventually, after being told several times, I emptied the room and decided to carpet it myself. I am after all an expert at everything.
I bought one of those electronic measuring tape type machines. It’s a small box which you place near the wall and it sends an invisible beam to the opposite wall which somehow measures the distance; and then you can read the distance between the two walls on the little display screen.