This is the list of all your rooms. Rooms are divided into types. You do not necessary need more than one room per one type. It's good to have some kind of system for the names. Be it numeral or associative.
You need to define at least one type of the room. For example you can single rooms, double rooms or twin rooms. We advise to describe each type in at least few sentences and attaching a photo. In case you have very varied rooms, it might be wiser to create type for each room. There is possibility to add extra beds for each type in case of children (or similar). If you have multi lingual website, don't forget to translate all the descriptions.