Has anyone else's baby started furniture cruising yet? How long does this stage last before they start to walk on their own?

It depends on individual babies. Some babies started walking immediately without any furniture cruising. Whereas some will only be able to fully walk on their own after a few months of cruising. you can encourage your girl by standing at a distance, encourage her to walk over to you for a big hug. This way it will motivate them to take a step out on their own