Chassis / container drayage equipment

A chassis is the skeletal trailer built to carry intermodal containers: a steel frame with locking pins, axles, and lights onto which a 20-, 40-, or 53-foot box is mounted. Containers have no wheels of their own, so every road move of an ocean or rail container is really container-plus-chassis, and the chassis usually belongs to someone other than the trucker: leasing pools, steamship lines, or terminal operators, each with rules about where equipment can go and when it must come back.

In drayage economics, the chassis is the recurring bottleneck: port and ramp productivity, chassis shortages, and split ownership determine whether boxes flow or stack up.

What this means when you move freight

Cross-border container freight, Asian imports landing at Lázaro Cárdenas or Manzanillo and railing north, U.S.-bound boxes moving through Texas ports, Monterrey-area intermodal ramps, adds a binational wrinkle to ordinary chassis pain. Chassis pools do not span the border: equipment from a Mexican pool generally cannot circulate into U.S. networks or vice versa, so a container crossing by road typically needs a chassis strategy on each side, or a transload out of the box entirely. When quoting container moves, resolve explicitly: who supplies the chassis on each leg, what per-diem and return rules apply, and whether the container's routing obligations (returning to its designated ramp) fit your freight's geography. The classic failure is a competitive linehaul quote wrapped around an impossible chassis plan.