15 Inch Trailer Tires and Wheels

Everything 15 inch for a trailer on one page: ST205/75R15 and ST225/75R15 tires from load range C to 14-ply G, 15x5 and 15x6 wheels in 5 on 4.5 and 6 on 5.5 bolt patterns, in galvanized spoke, white spoke, black and silver modular, Road Ready aluminum and HPD Canyon and HDT aluminum, and the same tires already mounted, balanced and inflated. 15-inch is the biggest trailer wheel size in the country: boat trailers, tandem-axle campers, car haulers, enclosed cargo and utility trailers.

Orders ship from the U.S. with tracking. Lug nuts are sold separately.

Common questions

5 on 4.5 or 6 on 5.5?
Count your lug nuts. Five lugs on a 15-inch trailer wheel is 5 on 4.5. Six lugs is 6 on 5.5. ST205/75R15 usually rides on a 5-lug 15x5 or 15x6; ST225/75R15 usually rides on a 6-lug 15x6.

Which tire size?
Read your sidewall. 205/75R15 is the lighter, more common size. 225/75R15 is about an inch taller with more capacity, standard on tandem-axle campers and car haulers. Do not mix them on an axle.

Steel or aluminum?
Galvanized steel for saltwater. Aluminum for a camper or enclosed trailer where looks and weight matter. Both carry the same tire.
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