Effective June 1, 2016
Additional Handling Surcharge. A surcharge applies to any FedEx Ground® package that measures greater than 48 inches but equal to or less than 108 inches along its longest side. Prior to June 1, 2016, a surcharge applies to any FedEx Ground package that measures greater than 60 inches but equal to or less than 108 inches along its longest side. All other Additional Handling Surcharge size, weight and packaging parameters remain unchanged. The surcharge remains at $10.50 per package. This change applies to shipments within the U.S. and from the U.S. to Canada. See the Jan. 4, 2016, FedEx Service Guide for details.
http://www.fedex.com/us/2016rates/other-changes.html