ATC STO 300/350: Single Axle Cargo+
Specifications, configurations, and buyer fit for the ATC STO 300/350 Single Axle Cargo+.
The STO 300/350 is a current ATC model. The published specifications below come from the manufacturer’s spec sheet. Confirm the current numbers with your dealer before you buy.
Published Specifications
| GVWR | 2,990-3,850 lb |
|---|---|
| Empty weight | 1,115-1,250 lb |
| Payload | 1,750-2,725 lb |
| Lengths | 11 ft 8 in to 13 ft 8 in interior |
| Width | 69 in interior |
| Axles | Single, 2.9K or 3.5K lb per axle |
| Tires | ST205/75R15LRD |
| Coupler | 2 in ball, 5K coupler rating |
| Deck height | 18 in |
All-aluminum fully welded single axle cargo trailer in 6 x 10 and 6 x 12 sizes; 2 ft slant wedge front; floor tie downs and wall airline track; LifeTrac plug-and-play modular accessories on the 350
Read from the manufacturer's published page on September 25, 2026. Options and model-year changes alter these figures, verify the current sheet with the dealer.
Manufacturer Source
ATC listed this model family as active when checked on July 19, 2026. Confirm current specifications, options, and local availability directly with the manufacturer and dealer.
View the official ATC STO 300/350 page →