The standard wheel size for a base 2015 Ford F-150 pickup is 17 inches with a wheel width of 7.5 inches. Some trims include large 20-inch wheels with an 8.5-inch width. F-150 trucks have featured 17-inch wheels as standard on the base trim since the 2004 model year.
The 2015 Ford F-150 in XLT trim offers 20-inch alloy wheels as an option but otherwise uses alloy 17-inch wheels similar to the steel 17-inch wheels on the base XL trim. The 2013 and 2014 F-150 offered similar factory wheel sizes, but the cars were also available with 22-inch wheels on the limited trim.