Adobe Stock 205317015

SmithCo side dump trailers offer the highest quality farming and feedlot trailers. Side dumps can be pulled with a tractor or truck, and we can help find solutions to common problems like flotation-type tires that keep your trailer from sinking into soft ground.

Ag pup cp20


SmithCo’s Ag Pup was designed for the agricultural market and can be easily pulled with an ag tractor.

Feedlot trailer

Feedlot Series

SmithCo’s Feedlot Trailers are designed to hold low density payloads that require more tub volume and can handle dual product hauling.

Construction pup cp30


SmithCo’s Construction Pup is designed for both off-road construction and agriculture.

TMB 3 gallery


SmithCo’s Truck Mount Box is a shorter, easier to transport, fully functional side dump trailer that can be mounted to a tractor or truck chassis.



SmithCo’s SX1 Single Axle side dump trailer is primarily used in situations when maneuverability is an issue, or in a doubles operation.



SmithCo’s SX2 Tandem Axle side dump trailer is one of our most popular and versatile models.

Smithco sx3 triple axle side dump trailer


SmithCo’s SX3 Three Axle side dump is a popular choice in states allowing extended gross weights for 5-axle+ trailer/truck combos.

Sx4 - cropped


SmithCo’s SX4 Four Axle side dump trailer is primarily used in states that allow extended weights and is usually part of a line-haul application.



SmithCo’s SX5 Five Axle side dump trailer is similar to the four axle model, but features a liftable/steerable axle added behind the landing leg area.



SmithCo’s Medium High Volume tub was designed for low density payloads that require larger tub volume.

Shv tub


SmithCo’s Super High Volume tub was designed for wet, low density payloads.

Double Tub

Double Tub Series

The SmithCo Double Tub Series is our SX Series frame mounted with two or three tubs instead of one.