ATC STO 400/450: Tandem Axle Cargo+
Specifications, configurations, and buyer fit for the ATC STO 400/450 Tandem Axle Cargo+.
The STO 400/450 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 | 7,700 lb |
|---|---|
| Empty weight | 1,850-2,000 lb |
| Payload | 5,700-5,850 lb |
| Lengths | 15 ft 8 in to 17 ft 8 in interior |
| Width | 81 in interior |
| Axles | Tandem, 3.5K lb per axle |
| Tires | ST205/75R15LRD |
| Coupler | 2-5/16 in ball, 10K coupler rating |
| Deck height | 20 in |
All-aluminum fully welded tandem axle cargo trailer in 7 x 14 and 7 x 16 sizes; 2 ft slant wedge front; LifeTrac modular accessory system on the 450
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 400/450 page →