The general rule for traveling by train is that no more than three "easy-to-handle" pieces of luggage are premitted per passenger, though there are rarely officials checking the number of bags people are carrying. When it comes to large items like skis or snowboards, however, there are stricter regulations.
Skis, snowboards, and other large items are only allowed on board the train if there is "suitable space" in which to stow them during the trip.
If sufficient space isn't available in your train car, you must be prepared to check your skis to be carried in the baggage car.
Station Storage
Many larger stations provide luggage storage offices for baggage storage, including ski bags, and many stations have luggage carts.
Trenitalia Offers Luggage Transport for Frecciarossa Customers
The luggage transport service available at some Frecciarossa stations allows customers to book the aid of a station porter for a given time to assist with baggage. When porters are available, they can be easily recognized by their uniform or official badge. The stations that supply this service are Roma Termini, Florence S.M.N., Bologna Centrale and Milano Centrale.
You can use the luggage assistance service simply by Calling the Trenitalia Call Center in Italy on 89.20.21 (fee paying number) up to 8 pm of the day before departure. When booking, you must give the operator details about your journey and the PNR code on your ticket; then you can coordinate over time and the place for meeting the porter. The service cost is 5 euros, which must be paid to the service porter on the spot.
Checking Baggage on Trains
Excess baggage or bulky pieces such as ski bags can be checked to travel in the baggage car if there isn't space in your car.
If you'd rather not worry about carrying skis or other bulky items on and off the train, there is a door-to-door option for sending your bags from point to point rather than carrying it with you. It's called Bagaglio Facile, and the costs start at €20 for the first bag and €15 for the second. It's available to all travelers on Frecce trains, or anyone who has a CartaFreccia card.
Bagaglio Facile is only available Monday-Friday (it only operates on weekends in the cities of Milan, Rome, Florence, Venice, Turin, Bologna, Naples, Salerno, and Bari). Arrangements for Bagaglio Facile must be made by phone at least 24 hours in advance of your departure time.