Roy's Tire Center
Carrollton, GA · Carroll County
Family-owned since 1974. Tires, 4-wheel alignment, brakes, suspension.
- Tires
- Alignment
- Repair
- Brakes
234 Maple Street, Carrollton, GA 30117

Utility · Boat · Enclosed · Horse
Blowouts are the leading cause of trailer accidents — and most are preventable with the right tires inflated to the right pressure. Find ST-rated trailer tires at local tire shops across Carroll, Douglas, Paulding, Haralson & Heard counties, or get matched free.
Trailer tires are Special Trailer (ST)-rated tires built for the side loads of towing — never passenger or light-truck tires. Expect $60–250 per tire depending on trailer size, and replacement somewhere in the three-to-six-year window regardless of tread, since age (not mileage) is what kills them — there's no single universal interval, and how long trailer tires last covers what the industry actually publishes. Most full-service tire shops across Carroll, Douglas, Paulding, Haralson, and Heard counties stock common ST sizes.
Trailer tires follow different rules than vehicle tires. Get these four things right.
Trailer tires are rated ST (Special Trailer) — never use LT or passenger tires on a trailer. ST tires have stiffer sidewalls to handle the unique side-load forces trailers experience, especially in towing sway.
Always match or exceed the load rating for your trailer's gross weight. Divide total trailer weight by the number of tires — that's the minimum load capacity per tire. Under-rated tires blow out under load.
ST tires are typically inflated to their sidewall MAX pressure (usually 50–80 PSI), unlike car tires. Never inflate a trailer tire to the door-jamb pressure of your tow vehicle — that's for the vehicle, not the trailer.
Trailers often sit for months at a time. UV exposure, ozone, and dry rot are the main killers, so most trailer tires get replaced somewhere in the three-to-six-year window with tread still on them. There is no single universal interval — storage and load conditions move it — but past six years you need a specific reason not to replace.
Under-inflation — not overloading — is responsible for the majority of trailer tire failures. ST tires are designed to run at MAX sidewall pressure (often 65–80 PSI). Running them at vehicle pressure (32–36 PSI) builds dangerous heat and causes internal structural damage even if the tire looks fine. Always inflate to the MAX on the sidewall, not the tow vehicle's door jamb.
Most full-service tire shops carry common ST sizes. Call ahead for less common sizes — especially if you need 14" or specialty trailer tires.
Carrollton, GA · Carroll County
Family-owned since 1974. Tires, 4-wheel alignment, brakes, suspension.
234 Maple Street, Carrollton, GA 30117
Carrollton, GA · Carroll County
Carrollton's oldest auto shop, since 1961. Tires, Hunter alignment, leveling kits, brakes.
134 Bankhead Ave, Carrollton, GA 30117
Carrollton, GA · Carroll County
Tires and auto repair serving Carrollton, Mt Zion, Whitesburg.
529 N Hwy 113, Carrollton, GA 30117
Carrollton, GA · Carroll County
New & used tires, repair, alignment, rotation, roadside assistance.
806 Newnan Rd, Carrollton, GA 30117
Carrollton, GA · Carroll County
New/used tires, brakes, alignments, lift kits, lighting, rims, off-road mods. Since 2019.
2158 Bankhead Hwy, Carrollton, GA 30116
Carrollton, GA · Carroll County
Truck accessories since 2001. Custom wheels, lift kits, tonneau covers, tires, LED.
2533 E Highway 166, Carrollton, GA 30116
Carrollton, GA · Carroll County
132 Maple Street, Carrollton, GA 30117
Carrollton, GA · Carroll County
1675 Hwy 27 S, Carrollton, GA 30117
Carrollton, GA · Carroll County
Big-box auto care.
1735 S Highway 27, Carrollton, GA 30117
Special Trailer (ST) tires. Never put passenger (P) or light truck (LT) tires on a trailer — they lack the stiffer sidewall construction required to safely handle trailer-side loading and sway. Boat, utility, and enclosed trailers all use ST-rated tires.
Most tire shops across Carroll, Douglas, Paulding, Haralson & Heard counties stock common ST sizes — especially 13" and 15" sizes used on utility and boat trailers. Call ahead if you need a less common size. The shops listed below are a good starting point.
Most get replaced between three and six years old, usually with tread left — trailer tires age out from UV exposure and ozone cracking even when they are barely driven. There is no single interval that fits every trailer: the U.S. Tire Manufacturers Association is explicit that service and storage conditions vary too widely to predict a tire's life from calendar age alone, while trailer and RV outlets most often land on three to six years and warranties commonly run five. Treat six years as the point where you need a specific reason not to replace, and replace immediately at the first sign of sidewall cracking regardless of age. See the full guide on how long trailer tires last for the date code and what actually ends them.
Inflate to the MAX PSI shown on the tire sidewall — unlike vehicle tires, trailer tires are meant to run at their maximum rating. Check cold (before moving the trailer). Under-inflation is the leading cause of trailer tire blowouts.
Single-axle trailers typically don't need balancing since they don't have the driver feedback loop of a vehicle. Tandem-axle trailers, boat trailers, and enclosed trailers that travel at highway speeds can benefit from balancing to reduce vibration and wear.
Only as a get-me-home emergency. Passenger tires are not rated for the side loads of towing and can fail. Replace with the correct ST tire as soon as possible.
Small utility and boat trailer ST tires (12"–15") typically run $60–120 per tire installed. Larger radial ST tires for travel trailers and cargo trailers (15"–16") run $100–180 per tire. Heavy dual-axle and equipment trailer tires run $150–250+ per tire. Prices vary by load range and brand — ask for the load rating that matches your trailer's GVWR.
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