14-Ply Trailer Tires (Load Range G)

14-ply trailer tires are the load range G class, built for dump trailers, equipment haulers, heavy goosenecks and any trailer running near 4,000 lbs per tire. We stock them in ST205/75R15 and ST225/75R15 for heavy single and tandem-axle 15-inch trailers, in ST235/80R16 and ST235/85R16 for 16-inch, and the 18-ply load range G 235/75R17.5 for commercial 17.5-inch wheels. Most are available loose or mounted on a wheel rated for the pressure.

A 14-ply tire runs 110 psi. That is beyond what a standard trailer wheel is rated for, so if you are moving up from load range D or E, the wheel usually has to change too. The assemblies on this page are built on wheels that carry the rating.

Common questions

Will 14-ply tires fit my current wheels?
Only if the wheel is stamped for 110 psi and the tire's load. Most black modular and galvanized trailer wheels rated 2,540 or 2,830 lbs are not. Check the stamp on the back of the wheel or buy the assembly.

Is 14-ply overkill for a travel trailer?
Usually. A camper specified for load range D or E does not gain anything from G except a harsher ride. 14-ply is for weight.

Do you have 14-ply in 15 inch?
Yes, ST205/75R15 and ST225/75R15 14-ply on black modular and galvanized wheels rated for them. Both are on this page.