How many 10 ft. Corrugated Galvanized Steel Utility-Gauge Roof Panels are needed for a 10 x 60 foot roof?

You would need 34 panels.

If you are buying 10’ panels because the roof is 10’ up the slope and you need to cover 60’ of eave with a panel that covers 21.5” at a time, you would need 34 panels.